Page 2 - Assignment-Reproduction in Organisms

8. __________ shows totipotency.
1. Xylem
2. Meristem
3. Cork
4. All of the above
9. The property of an undifferentiated cell that has the potential to develop into an
entire plant is called
1. Budding
2. Cloning
3. Subpotency
4. Totipotency
10. The development of root and shoot in tissue culture is determined by ______
1. Temperature
2. Nutrients
3. Auxin and cytokinin ratio
4. None of the above

B. Very Short Answer Questions (1 mark each)

1. Offsprings produced by asexual reproduction are referred to as clones. Why?
2. Name the most invasive aquatic plant weed which is called as ‘Terror of Bengal’.
3. How does Zygote usually differ from Zoospore in terms of ploidy?
4. Mention the main difference between the offspring produced by asexual reproduction
and progeny produced by sexual reproduction.
5. Which characteristic property of Bryophyllum is exploited by gardeners and farmers?

C. Short Answer Questions-II (2 marks each)

6. Higher organism have resorted to sexual reproduction inspite of its complexity. Why?
7. Tapeworms posses both male and female reproductive organs. What is the name given
to such organism? Give two more examples of such organisms.
8. Study the relationship between first two words and suggest a suitable word for fourth
place.
(a) Male flower : Stamens :: Female Flower : .............................
(b) Birds : oviparous :: Primates : .............................
(c) Chlamydomonas : Zoospores :: Penicilium : .............................
(d) Ginger : Rhizome :: Agave : .............................
9. Bryophytes and Pteridophytes produce a large number of male gametes but relatively
very few female gametes. Why?