Multiple Choice Questions: Diversity in Living Organisms - Plantae (Algae) (UPDATED ON: 01.02.12)

TOPIC: ALGAE

http://igutek.scripts.mit.edu/terrascope/Algae2.jpg

1. Plants which are not differentiated into roots, leaves and stems are grouped under?
   (a) Spermatophytes
   (b)thallophytes
   (c)gymnosperms
   (d)pteridophytes
   Ans. (b)
2. Plants which never bear fruits and seeds are grouped under?
   (a)Phanerogames
   (b)Cryptogams
   (c)Spermatophyta
   (d)Angiosperms
   Ans. (b)
3. Which of the following statement is incorrect?
   (a)All algae are microscopic
   (b)Algae are thallophytes
   (c)Four grouped of algae are blue-green algae, green algae,brown algae and red algae
   (d)Algae manufature food
   Ans. (a)
4. Which are the most primitive Algae
   (a)red algae
   (b)blue-green algae
   (c) green algae
   (d) brown algae
   Ans. (b)
5. In algae cell wall is made up of ?
   (a)Chitin
   (b)suberin
   (c)cellulose
   (d)cutin
   Ans. (c)
6. Algae differ from Riccia and Mrchantia having
   (a)Thalloid body
   (b)Multicellular body
   (c) Multicellular sex organs
   (d) pyrenoids in the cells
   (Pyrenoids are organelles, centers ofcarbon di oxide fixation within the chloroplasts of algae and hornworts.)
   Ans. (d)
7. Which of the following is the most advanced group of algae?
   (a)Chlorophyta
   (b)Cyanohyta
   (c)Rhodophyta
   (d)phaeophyta
   Ans. (c)
8. Which of the following is correct? Palmella stage is.
   (a)perennating structure of some green algae
   (b)perennating structure of blue-green algae
   (c)perennating structure of mosses
   (d)Reproductive structure of marchantia
   Ans. (a)
9. Fusion of mature individuals which directly act as gametes is called
   (a)hologamy
   (b)autogamy
   (c)heterogamy
   (d)conjugation
   Ans. (a)
10. If one of the gametes fails to fuse with others but develops into a diploide structure, this phenomenon is termed as :
    (a)apomixis
    (b)Apogamy
    (c)parthenocarpy
    (d)Parthenogenesis
    Ans. (d)
    11. Heterogametes are:
    (a)Gametes of the same size
    (b)Gametes of different sizes both of which are flagellate
    (c) Gametes of different sizes one of which is flagellate
    (d)Both b. and c.
    Ans. (d)
    12. After syngamy four spores are produced in
    (a)Algae
    (b)Bryophytes
    (c)Pteridophytes
    (d)Gymnosperms
    Ans. (a)

 Source: Souvenir Science IXth Lab Manual (MCQ's)

 Compiled By- Raghvi Rumpal (Class- IX)