MCQs Botany-15

MCQs Botany-15

1.

Which of the following is needed in both photosynthesis and respiration?
 
 
 
 

2. What is the main pigment involved in the transfer of electrons in photosynthesis?

 
 
 
 

3. Which nitrogenous base is unique to RNA and not found in DNA?

 
 
 
 

4. Cytochromes are a group of biochemicals found in ———

 
 
 
 

5. ———– is the shallow zone of a lake or ocean where most aquatic plants grow

 
 
 
 

6. Which is a precursor to ethylene in plants?

 
 
 
 

7. Grasses are more sensitive to _________

 
 
 

8. What is a food chain?

 
 
 
 

9. Which statement is true about ethylene?

 
 
 
 

10. Which hormone is responsible for causing the closure of stomata?

 
 
 
 

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