MCQ's About "Photosynthesis And Respiration In Plants".

 PHOTOSYNTHESIS AND RESPIRATION IN PLANTS

Question 1

The raw materials for photosynthesis are:

(A)  nitrogen and water  (B)  nitrogen and carbon dioxide

(C)  carbon dioxide and water  (D)  carbon dioxide and oxygen

Question 2

The products of photosynthesis are:

(A)  carbon dioxide and oxygen  (B)  carbon dioxide and glucose

(C)  glucose and oxygen  (D)  starch and carbon dioxide

Question 3

The energy for carrying out photosynthesis is obtained from:

(A)  chlorophyll  (B)  oxygen  (C)  sunlight  (D)  carbon dioxide

Question 4

Green plants produce carbon dioxide:

(A)  only at night  (B)  only during the day  (C)  all the time  (D)  none of the time

Question 5

Many plants change the glucose produced during photosynthesis into:

(A)  starch  (B)  carbon dioxide  (C)  fats  (D)  mineral salts

Question 6

A leaf is tested for the presence of starch. When is most starch likely to be present?

(A)  after rain  (B)  first thing in the morning

(C)  after several hours of darkness  (D)  after a long sunny day

Question 7

The products of respiration are:

(A)  carbon dioxide and starch  (B)  carbon dioxide, water, and energy

(C)  oxygen and carbon dioxide  (D)  oxygen, carbon dioxide, and energy

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Answers:

Question 1

(C)

Question 2

(C) 

Question 3

(C)

Question 4

(B)

Question 5

(A)

Question 6

(D) 

Question 7

(B)