Saturday 25 February 2012

IMPORTANT DIAGRAMS FROM KINGDOM ANIMALIA- IX Diversity in living organisms (Updated on :25.02.12)

IMPORTANT DIAGRAMS FROM ANIMALIA KINGDOM :
(Earth worm, Cockroach, Birds and Bony Fish)

1. Earthworm :


Earth worm excrete out the extra material through the Anus.
It shows the burrowing adaptations.

2. Cockroach :

3. Bony Fish :

4. Birds :

Birds belong to Phylum Chordata, Sub Phylum Vertebrata and Class Aves.
Streamlined body to provide minimum resistance to air currents and helps in flying.
Forelimbs modified into wings and Feathers provide insulation to the body.
Hind limbs modified for walking, perching and swimming.
Pneumatic bones (hollow bones)  reduce the weight of the body and helps in flying.
Eyes covered with Nictitating membrane.
Lung shows air sacs attached to it.


SOURCE : SOUVENIR LAB SKILLS BOOK IX AND CD.
if any queries, please comment...

Thursday 16 February 2012

QUESTION ANSWERS- IX Diversity in living organisms (Updated on :16.02.12)

SHORT QUESTIONS :ANIMALIA...
(related to Pisces, Earthworm and Cockroach)

1. To which Phylum does the Earthworm belong?
Ans. Annelida

2. What is the scientific name of the Earthworm?
Ans. Pheretima

3. What is Prostomium?
Ans. The small sensory lobe which is on the mouth of the Earthworm.It is present on the first segment of the body.

4. To which Phylum does the Cockroach belong and what is its scientific name?
Ans. Arthropoda, Periplanata

5. How is the body of the Cockroach differentiated ?
Ans. It is divided in 3 parts : Head , Thorax and abdomen.Head is triangular in shape and bears two compound eyes and the Antennae which are also called the sensory organ.

6. How does the exchange of the gases takes place in Cockroach?
Ans. Through Spiracles.

7. To which class does fish belong to?
Ans. Osteichthyes

8. Which organs helps in the locomotion of the fish?
Ans. Dorsal, Pelvic, Pectoral and Tail fins
Dorsal and Pelvic helps in balancing and movement in water.Pectoral fins acts as brakes and Tail fins helps in changing the direction.

9. By which membrane are the eyes of the fish (bony) protected?
Ans. Nictitating membrane by which eyes of the bony fish are covered which protect its eyes from water.

10. Why Earthworm called the 'Farmers Friend'?
Ans. This is because of its burrowing habits as it acts as Nature's plough man and their castings act as manure.


SOURCE :SOUVENIR IX SCIENCE LAB SKILLS

Saturday 11 February 2012

QUESTION ANSWERS (Class IX) :Why do we fall ill? - (UPDATED ON: 11.02.12)

On the reader's request we are posting the Que-Ans of the chapter :Why do we fall ill? We will continue the chapter : Diversity in Living Organisms after these posts.

Que - Ans :
1. Define Health.
Ans. According to WHO (World Health Organisation) , It is the state of complete physical, mental and social well being.


2. What is Disease ?
Ans. Anything which interferes with the normal functioning of the body and impairs the health.


3. Differentiate Congenital Diseases from Acquired ones.
Ans. Congenital :
a. These occur since from birth.
b. inherited from the parents to the offspring. 
Acquired :
a. It occurs during the lifetime of the person and not from the birth.
b. It does not get inherited.It occurs due to pathogens or due to deficiency of nutrients, hormonal imbalance or due to degeneration of the tissues.

4. What is Incubation Period?
Ans. It is the period between the infection and the appearance of the first symptom.


5. Name the diseases which are caused by :
a. Bacteria : TB, Typhoid, Anthrax and Tetanus
b. Viruses : Common Cold, AIDS, Dengue fever and Mumps.
c. Fungi : Ring worm, Skin infections and Athlete's foot
d. Protozoa : Malaria, Kala Azar, Sleeping Sickness and Amoebiais

6. Important points :
a. Malaria is spread by the mosquito Anopheles
b. Mosquito Culex spread Filaria.
c. AIDS is caused by the Retrovirus HIV.
d. A dengue is the Virul disease caused by a day time biting of the mosquito called Aedes
e. TB is caused by a bacterium Mycobacterium Tuberculosis.
f. Typhoid is caused by Salmonella Typhi.
g. Leishmania Donovani is the protozoan which causes Kala azar (black fever)
h. Helicobacter pylori is a small curved shaped bacteria which is responsible for the peptic ulcers.

7. Which was the first Anti biotic?
Ans. Penicillin which was invented by Alaxander Flamming in 1928.


8. Name the Organs which are targeted by specific diseases :
a. Hepatitis : Liver
b. Fungal Diseases : Skin
c. Pneumonia : Lungs
d. TB : lungs
e. Diarrhoea : Intestines.


9. Which is the most common type of Plague?
Ans. Bubonic Plague.


10. Who discovered Vaccine for the first time and which one?
Ans. Edward Jenner invented the vaccine for the first time and it was of smallpox.


Readers can ask Questions  from the syllabus to clear their doubts regarding science exam.
SOURCE : NCERT SCIENCE AND DINESH BIOLOGY IX...

Friday 10 February 2012

IMPORTANT QUESTIONS (X) ...!!!!

                                                 MCQ's


  1. Four students A,B,C,D perform experiment on tracing the path of light ray through a glass slab. The position of the pins used to describe incident way is shown on paper by four of them, respectively as:
    'c' option is correct


    2)Teacher asked three students to write one precaution by each of them regarding the experiment on  tracing the path of the light ray through glass slab. First, second and third student wrote down the following precautions, respectively
     (a) While tracing emergent ray, we should see heads of pins.
     (b) One eye should be kept closed, while tracing emergent ray
     (c) Glass slab should have parallel edges.
           The correct statements are of
           (i) 1 and 2             (ii) 2 and 3                (iii) 1 and 3                 (iv) All three

           3) A student is asked to label his diagram made as observation on tracing the path of light ray 
              through glass slab as follows:
       
    The correct sequence of labelling angle I, angle e , angle r and lateral displacement respectively is,
      1. (a) 1,2,3 and 4                          (b) 3,4,1 and 2
        (c) 1,3,2 and 4                          (d) 3,2,4 and 1

      4) A student obtains an image of window by using a convex lens on a screen. He adjusts the position of screen to get sharpest and brightest image possible. To get focal length of lens he should measure the:
      (a) distance between window and screen
      (b) distance between convex lens and window.
      (c) distance between screen and convex lens
      (d) distance between window and convex lens as well as distance between window and screen.
       
    5)A student determines the focal length of a device 'X' by focusing the image of a distant object on a screen placed on the same side as the object. The device 'X' is.                                                       (a) Concave lens             (b) Convex lens     (c) Concave mirror           (d) Convex mirror   


    1. QUESTION / ANSWERS 
      Ques1: Name the part of the human eye that helps in changing the focal length of the lens?
      Ans: Ciliary Muscles

      Ques2:What is the cause of dispersion of white light passing through a prism? Which colour of light deviates the-
       (i) most ; (ii) least
      Ans: Each colour in VIBGYOR has different refractive index or speed in glass medium of prism. Red have least value of refractive index and violet has the maximum.                                                                                                                                                                                                                                                                                         Ques3: Why does the clear sky appear blue? How would the sky appear in the absence of earth's atmosphere?                                                                                                                Ans:Scattering of molecules of gases in atmosphere makes the colour of sky appear blue. In absence of atmosphere of earth no scattering will be there as a result sky will appear Black.                                                                                                                                                                                                                                                            Ques4: How can you identify three types of mirrors without touching?                                                                                                                                  Ans: By looking into mirror by going close to it. If image is of same size and erect then it is Plane mirror. If image is of bigger size and erect then it is Concave mirror. If image is of smaller size and erect then it is convex mirror.                                                                                                                                                                                                                                     
      Ques5: A real image, 1/5th the size of object is formed at a distance of 18cm from a mirror. What is the nature of mirror? Calculate its focal length.                                                              Ans: Real image means it is concave mirror. m = -1/5 = -(-18)/u ==> u= -90                        Now use 1/f = 1/u + 1/v ==> f= -15                                                                                                                                                                                                                                    
      Ques6: A ray of light is incident obliquely on a glass slab. Draw a ray- diagram showing the path of the light ray. Clearly mark angle of incidence, angle of refraction, angle of emergence and lateral displacement of the ray. Give a formula to find refractive index of glass slab in terms of angle of incidence and angle of refraction.
      Ans:
                                                        
             
      Ques7: A person cannot see objects farther than 12m from the eye clearly. Name the,defect of vision he is suffering from and the lens that shouls be used for correction of this defect. Illustrate with the help of a diagrams, How this lens will correct the defective vision.
      Ans: 
        
      Ques8: Draw a ray diagram in each of the following cases to show the formation of image, when object is placed:
      (a) Between optical centre and principal focus of a convex lens.
      (b) Between F and 2F of a concave lens
      1. At 2F of a convex lens
      What can you say about sign and value of linear magnification ratio in, (i) and (ii) above.
                                                                                                                                                                                                                    
      Ques9: (i)Define real image of an object.
        1. Name the mirror that
          (a) can give real as well as virtual image of an object.
      (b) will always give virtual image of same size of an object.
      (c) will always give virtual and diminished image of an object.
      (d) is used by a doctor in examining teeth.
      (iii) With the help of a ray diagram explain the use of concave mirror as solar concentrators.
      Ans: (i) If reflected or refracted meet actually, the point of intersection is called real image of point object. (ii) (a) concave (b) plane mirror  (c) convex mirror     (d) concave
                                                
      Ray coming parallel to principal axis will pass through principal focus.
                                                                                                                   








SOME IMPORTANT QUESTIONS (X) ..!!!!!

                                                   MCQ's 
           1) Four stages of binary fission in amoeba are shown below. This stage at which nuclear fission and 
              cytokineses are observed is ,stage   


 
    (a) I                 (b) II                             (c) III                     (d) IV

2) To determine the percentage of water absorbed by the raisins, before final weighing of raisins after  being kept dipped in water for about two hours, extra water from the soaked raisins is removed by:
(a) dry cotton                 (b) filter paper            (c) hot air blower                     (d) silken cloth

  1. 3) Out of the four slides I,II,III,IV whose details are shown below, which one would you focus under the microscope for observing budding in yeast?
    (a) I                          (b) II                       ( c) III                                   (d) IV

    4) The process represented in diagram below is the:
    (a) formation of spores in Amoeba
    (b) formation of bud taking place in Amoeba
    (c) identical gametes being formed in Amoeba
    (d) formation of daughter cells in Amoeba.

    5) A student soaked 5 grams of raisins in 25 mL of distilled water in each of two beakers A and B.  Beaker A was maintained at 25°C and beaker B at 50 °C. After one hour, the student observed that the water absorbed but the raisins was:
    (a) same in case of A and B                               (b) less in case of A than in B
    (c) exactly double in A, of that in B                    (d)exactly four times in A, of that in B

    6)A student was given two slides, one of the budding in yeast and the other of binary fission in amoeba. He was asked to identify any one difference in the nucleus of the two. He observed both the slides and identified correctly____
    (a) presence of two distinct nuclei in amoeba, one in yeast and two in bud.
    (b) presence of one nucleus in amoeba, two in yeast and one in its bud
    (c) presence of single nucleus each in amoeba and yeast cell and none in the attached bud.
    (d) presence of two nuclei in the centrally constricted amoeba, one in yeast cell and one in its bud.

                                   QUESTION/ANSWERS 
    Ques1: Select the biodegradable wastes from the following:
                DDT, Crop's residue, Leather and glass
    Ans: Crop's residue and leather 
 Ques2: In a food chain consisting snake, insect, grass and frog, assign an appropriate trophic level   to  frog.  Ans: Grass--> insect--> frog-->snake (Third Trophic Level)

  Ques3: Name those parts of a flower which serve the same function as the following do in animal:
                    (i) Testis (ii) Ovary (iii) Eggs (iv) Sperms  
                           Testis = Anther
                           Ovary = Ovary 
                           Eggs = Oules 
                           Sperms = Pollen ( Pollen Grains)  
  Ques4: What are fossil fuels? How are they formed?
   Ans:  Write the definition and formation of fossil fuels.
  
 Ques5: What is ozone? How does it protect the organisms on the Earth?
 Ans: Ozone is O3. It forms a protective blanket over the earth's atmosphere and it's depletion causes harmful effects on humans. It absorbs the UV radiations coming from sun.

      
Ques6: What are sexually transmitted diseases? Name an STD which damages the immune system of  the human body?
Ans: Sexually transmitted diseases are diseases that spread through sexual contact.
               AIDS is the STD which damages the immune system of  the human body.

      
Ques7: Distinguish between analogous organs and homologous organs. Identify the analogous organs and homologous organs among the following:
Wings of an insect, wings of a bat, forelimbs of a frog, forelimbs of a human.
Ans: Homologous - organs having similar origin and structural plan but perform different functions.
        Analogous - organs having dissimilar origin and structural plan but perform same functions.

        Homologous organs: Forelimbs of frog and human
        Analogous organs: Wings of insect and bat.

Ques8:Study the given data and answer the questions that follow:
              1                2                   3
Parental plant cross fertilized and seeds collected F1 Generation offsprings. F2 Generation offspring after self pollination of F1 hybrid.
Male parent- Round Green seeds
Female parent-Wrinkled Yellow seeds
All seeds- Round yellow 314-Round yellow
110-Round green
102-Wrinkled yellow
32-Wrinkled green

(a) What is the term given in this type of cross?
(b) What does the data in column 2 indicate?
State how did you arrive at this conclusion.
 Ans:  (a) Dihybrid Cross
          (b) Round shape and yellow colour in pea plants are dominant triats.

Ques9: What is the importance of DNA copying in reproduction? Why is variation beneficial to the species but not necessary for the individual? Explain.
Ans: DNA copying is essential part of reproduction because it ensures that same blue print of body design is maintained. Variation of the species is beneficial for adaptation and better survival. It may result in formation of blue species.

Ques10:(a) What is the role of seminal vesicles and the prostate gland?
              (b) What are the three categories of contraception methods? Write briefly about each.
Ans: (a)  Seminal vesicles-secrete the white substance which acts as lubricant , nutritive and    transport it. 
              Prostate gland- its secretion provides the medium for sperms to move.
        (b) 3 categories for contraception:
             Mechanical Barrier, Harmonal or Chemical Method , Surgical method.

Ques11: Draw longitudinal section of a flower and label on it following:
      1. Ovary (ii) Style (ii) Stigma (iv) Anther
Why is vegetative propagation practised for growing some plants? Give two examples of plants grown by this method.
Ans:
 Vegetative propagation is used for growing some plants which do not produce viable seeds.
(give any two examples)

SOME IMPORTANT QUESTIONS.(X).!!

                                                    MCQ's
  1. When ethanoic acid is added to a solution of substance X, a colourless and odourless gas Y is liberated. The gas Y turns lime water milky. The substance X is:
    (a) Sodium carbonate                       (b) Sodium hydroxide
    (c) Sodium acetate                            (d) Lime water

      
    2) A student added acetic acid to test tubes I, II, III , IV and then introduced a burning candle near the mouth of each test tube.
     
    The candle would be extinguished near the mouth of test tubes
    (a) I and II                        (b) II and III                  (c) III and IV                    (d) I and IV

    3)Which of the following is not observed when Al is added to the solution of copper sulphate?
    (a) Solution is blue in the beginning
    (b) Final solution is colourless
    (c) Final solution is light green
    (d) Brown mass is deposited an Al.

    4) Zinc granules were added to zinc sulphate, copper sulphate, aluminium sulphate and iron sulphate solutions as shown below. You would observe the deposition of metal on zinc in beakers

(b) is the correct option



        5) Four students A,B,C,D noted the initial colour of the solutions in beaker I, II, III and IV , After  
            inserting zinc rods in each solution and leaving it undisturbed for about two hour he noted the colour 
            of each solution again
               
      They recorded their observations in the form of a table given below:













      Which student noted the colour change in all four beakers correctly?
          (a) A                   (b) B                   (c) C                    (d) D

               QUESTION / ANSWERS :
Ques1: Write the next higher homologue of the following:
            (i) C3H6                     (ii)C5H8
Ans:   (i) C4H8                        (ii)C6H10

Ques2: An element has electronic configuration 2,8,3. What is the atomic number of this element? To which (i) group and (ii) period this element belong?
Ans:  Atomic Number : 13
         Group number:13     Period number: 3rd 


Ques3: How does the atomic size vary in a group from top to bottom and in period left to right? Explain
Ans:  Atomic size increases from top to bottom , as one new shell is added at every  step.
         Atomic size decreases along the period, as electrons are added in the same shell,  effective 
         nuclear  charge increases and size decreases.


Ques4: Give reasons for the following:
            (a) Unsaturated hydrocarbons show addition reactions but not saturated hydrocarbons.
            (b) Carbon only forms covalent compounds.
Ans: (a) Unsaturated hydrocarbons either have double/triple bond, one/two of which easily  
          breaks, being weak to form single covalent bonds, While saturated hydrocarbons have only 
         single bond which are strong.  
 
        (b) Carbon can neither lose 4 electrons as it requires too much energy , nor gain 4 electrons 
        as 6protons can't hold 10 electrons , therefore it only shares.


Ques5: State modern periodic law. Mention the position of (I) hydrogen and (ii) isotopes of the same element in the modern periodic table.
Ans: Modern Periodic Law: It states that the physical and the chemical properties of elements are the periodic function of their atomic number.
        (i) Write the position of H
        (ii) Position of isotopes same group and period.
         Group: Increases 1 group down the group.
         Period: Decreases from moving left to right along a period.


Ques6:. Complete the following reactions:
      1. CH3CH2OH conc. H2SO4
                                             heat
      2. CH3COOH + NaHCO3 ----->
      3. CH4 +Cl2 sunlight
      4. CH2 == CH2 + H2 --Ni---->
      5. C2H5OH + 02 ---Alk.KMno4---------->


Ans: (i) CH2==CH2
        (ii) CH3COONa + H2O +CO2
           (iii) CH3Cl + HCl
           (iv) CH3---- CH3
           (v) CH3COOH + H2O 

 
Ques7: (a) List two reasons for carbon forming a large number of compounds.
(b) An organic acid 'X' is a liquid which often freezes during winter time in cold countries. It has molecular formula C2H402. On warming with ethanol in the presence of a few drops of conc.H2SO4 a compound Y with sweet smell is formed.
   (i)Identify X and Y
   (ii)Write the chemical equation for the reaction involved.
Ans: (a) Carbon forms a large number of compounds due to its unique combination of small size and tetra valency, it form long chains (catenation) with strong bonds.
        (b) X =  CH3COOH 
             Y = CH3COO CH2CH3 
            CH3COOH + C2H5OH ----------> CH3COOC2H5 + H2O











Tuesday 7 February 2012

QUESTION ANSWERS: Diversity in Living Organisms - (UPDATED ON: 07.02.12)

VERY SHORT TYPE QUESTIONS:-
(related to plantae kingdom)
Q1. Define Systematics?
ans. Arrangement of organisms into appropriate system.
Q2. Who devised binomial nomenclature?
ans. Carolus Linnaeus.
Q3. What is the type of specimen?
ans. On the description of whichspeciesname is established.
Q4. Define a taxon?
ans. Agroup of similar genetically related individuals.
Q5. Name the 2 kingdoms of the living world proposed by Linnaeus.
ans. Plantae and Aanimilia.
Q6. In which kingdom viruses are placed?
ans. none
Q7. Mention the main reserve food of animals and plants.
ans. Glycogen-animals; Starch-plants.
Q8. What are eukaryoutes?
ans. Organism with true nucleus.
Q9. What are prokaryoutes?
ans. Organisms with cell membrane around the genetic material.
Q10. Define class?
ans. Similar orders are placed together in a class.
Q11. What is a phylum?
ans. Many classes with same characteristics are induced in a phylum.
Q12. What is the mode of nutrition of fungi?
ans. Heterotrophic.
Q13. What is mycology ?
ans. The study of fungi  is called mycology.
Q14. Name the cell wall material in fungi ?
ans. Fungus cellulose.
Q15. What is hypha?
ans. Thallus is made up of colourless filamentous stucture called hypha.
Q16. Name the three main groups of  algae?
ans. Brown algae , red algae and green algae
Q17. Name a filamentous green alga?'
ans. Spyrogyra.
Q18.What is the name of the male sex organs in brayophytes.
ans. Archegonium
Q19. What are gymnosperms?
ans. They are seeded plants with flowers.
Q20. Give some examples of conifers.
ans. Pine cedar ,spruce,fur and red wood trees.
Q21. What are carolloid roots?
ans. When association of algae and roots is found,it forms carolloid roots.
Q22. Which type of sexual reproduction is found in gymnosperms and angiosperms?
ans. Oogamous reproduction.
Q23. Name a living fossil.
ans. Antheridium
Q24. What are hydrophytes?
ans. The plants which are found in aquatic habitat are called hydrophytes.
Q25. What are brayophytes?
ans. A division of plante kingdom consisting of mosses ond liverworms.
Q26. What is prothyllus?
ans. Prothyllus is a flat green heart shaped stucture and female gametophyte of a fern on which   
         sex organs are born.


for any query please comment(mention the respective question)
source: book name:- Holy faith abc of Science and Technology IX

Monday 6 February 2012

Multiple Choice Questions: Diversity in Living Organisms - Plantae (MOSS) (UPDATED ON: 06.02.12)

MOSS
http://www.terragalleria.com/pictures-subjects/moss/picture.moss.olym20648.html


1.What is the other name of Moss?
a. Pinus
b. Funaria Hygrometrica
c. Agaricus
d. Sporophyll 

2. The plant is usually  :
a. small with short axis
b. long and tall
c. long with tall axis
d. none of these.
(grows around 2-3 cm in height)

3. The main plant body is called:
a. sporophyll
b. sporophyte
c. velvety mat
d. Gametophyte

4. True roots are absent in Moss but the plant bears a number of slender multicellular branching threads called ________ which perform the function of roots.
a. Rhizoids.
b. Sporophyll
c. Sporophyte.
d. Basidiocarp.

5. The plant is :
a. Monoecious.
b. Trioecious
c. Both of them 
d. none of them.
(It means bear both male and female sex organs.)

6. The male organs are called ___________ which are present at the apex of main axis.
a. Archegonia
b. Labeo
c. Antheridia.
d. None of these.

7.  A lateral branch called female shoot bears ____________ at its tip.
a. Antheridia
b. Archegonia.
c. Seta
d. Capsule

8. Sporophyte consist of _______ , _________ and __________ for asexual reproduction.
a. Seta, Canopy and Shoot
b. canopy, deterium, Rhizoids
c. Seta, foot and Capsule
d. foot, canopy and Pileus

9. Mosses shoe alternative generations between ____________ and _______________ generations.
a. Gametophyte and Sporophyte
b. Saprophyte and Herbicides.
c. Pteridophytes and Gymnosperms
d. Basidiocarp and Basidiospores.

10. They are found in :
a. hot areas
b. humid areas
c.both a and b
d. damp and shady areas
( They grow as green velvety mat)

http://en.wikipedia.org/wiki/Moss


SOURCE :SOUVENIR IX SCIENCE LAB SKILLS.




Saturday 4 February 2012

Multiple Choice Questions: Diversity in Living Organisms - Plantae (Fungi) (UPDATED ON: 05.02.12)


FUNGI

    1. A dark brown compact mass of mycellium whih acts as a resting body is called:
    (a)Sclerotium
    (b)Chlamydospores
    (c)Rhizomorph
    (d)None of these
    Ans. (a)
    2. Which of the following fungi grow on burnt wood?
    (a)Corticolous
    (b)Coprophilous
    (c)Xyllophylus
    (d)None of these
    Ans.(c)
    3. When the entire fungus is used in the formation of of reproductive structure , the organism is called as
    (a)Acarpic
    (b)Holocarpic
    (c)Eucarpic
    (d)None of these
    Ans. (b)
    4. When a portion of fungal mycellium is used in the formation of reproductive structure, the organism is known as
    (a)Eucarpic
    (b)Acarpic
    (c)Holocarpic
    (d)None of these
    Ans. (a)
    5. Which of the following fungi grows on the barks of trees?
    (a)Corticolous
    (b)Zoophilous
    (c)Saxicolous
    (d)Coprophilous
    Ans.(a)
    6.Which of the following fungi grow on dung?
    (a)Saxicolous
    (b)Terricolous
    (c)Corticolous
    (d)Coprophilous
    Ans. (d)
    7. Fungal hyphae arranged in the parallel manner constitute
    (a)Trama
    (b)Hymenium
    (c)Fruiting body
    (d)Fructification
    Ans. (b)
    8.Fungi which grow inside host tissue are
    (a)Lithophyte
    (b)Epyphyte
    (c)Endophyte
    (d)Ectophyte
    Ans. c.


Source: Souvenir Science IXth Lab Manual (MCQ's)
 Compiled By- Raghvi Rumpal (Class- IX) 

Thursday 2 February 2012

Multiple Choice Questions: Diversity in Living Organisms - Plantae (Mushroom) (UPDATED ON: 02.02.12)

TOPIC : MUSHROOM
1. What is the other name of Mushroom?
a. Funaria
b. Dryopteris
c. Agaricus
d. Ferus

2. To which division does it belong?
a. Basidiomycetes
b. Pteridophyta
c. Thallophyta
d. Mollusca

3. Mushroom is:
a. Saprophytic fungus
b. Autotrophic Algae
c. Heterotrophic fungus
d. None of the above

4. Mycellium produces white or colored  umbrella shaped fruiting bodies called:
a. Haphae
b. Basidiocarp
c. Annalus
d. Seta

5. Basidiocarp consist of a fleshy stalk called ___________ and umbrella like head borne on its top called __________
a.  Hyphae and Seta
b. Seta and Annalus
c. Annalus adn Antheridia
d. Stipe and Pileus

6. When young fruiting body is completely enveloped by a thin membrane, it is called _____________
a. Mycelium 
b. Rhizoids
c. Velum(veil)
d. Septate

7. With the growth of ____________ velum gets ruptured, while a part of it remained attached to stipe in the form of ring or____________.
a. Basidiocarp and Slender
b. Pileus and Annalus
c. Pyrenoid and Conjugation
d. Hyaline and  Pyrenoid

8. On the lower side of Pileus number of vertical plates like structure are present called____________
a. Spores
b. Organelles
c. Mushroom Dryopteris
d. Gills

9. The gills on either sides bear club shaped basidia which produce_____________
a. Basidiocarp
b. Chloroplasts
c. funaria
d. None of these

10. It grows during ______
a. Summer season
b. Winters
c. Rainy season
d. In all seasons
(It grows on damp rotten, logs of wood, trunks of tree and decaying organic material...)



ALL BOLD AND UNDERLINE OPTIONS ARE ANSWERS TO THEIR RESPECTIVE QUESTIONS.
compiled by : Damandeep
source : SOUVENIR SCIENCE IX LAB SKILLS