1. Plants absorb most part of water needed by them through their
A. embryonic zone
B. growing point
C. root hairs
D. zone of elongation
2. Photo-oxidation is
A. photorespiration
B. photolysis
C. light and oxygen induced breakdown
D. All of the above
3. Process of cell division can take place by
A. heterosis
B. fusion
C. mitosis
D. None of these
4. Most highly intelligent mammals are
A. whales
B. dolphins
C. elephants
D. kangaroos
5. Plant development is influenced by
A. quality of light only
B. quality and quantity of light
C. quality and duration of light
D. quality, quantity and duration of light
6. Prokaryotic cells lack
A. nucleolus
B. nuclear membrane
C. membrane bound by organelles
D. All of these
ANSWERS :
1. Answer: Option C
2. Answer: Option D
3. Answer: Option C
4. Answer: Option B
5. Answer: Option D
6. Answer: Option D
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