MCQs Botany-15

MCQs Botany-15

1. Which is a precursor to ethylene in plants?

 
 
 
 

2. Grasses are more sensitive to _________

 
 
 

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

 
 
 
 

4. Which statement is true about ethylene?

 
 
 
 

5.

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

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. What is a food chain?

 
 
 
 

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