ANSWER KEY X ICSE BATCH I II III (04/04/10)

Answers for the test on photosynthesis.


1.). the primary function of photosynthesis is to capture light energy, convert some of this light energy into chemical energy, and store this chemical energy in molecules of carbohydrates

2. Oxygen is released as a by-product (= “waste material”) of photosynthesis. (B) The oxygen atoms are removed from water as the water is broken down during the light reactions.

3. Two high-energy molecules that are produced during the light reactions are adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate (NADP-H).

4. Chloroplast

5. Photons

6. (i) Chloroplast

(ii) ATP

(iii) Photosynthesis

(iv) Glucose

(v) O2

(vi) Co2, H2O, Chlorophyll, Sunlight

(vii) H2O

7. (i) False

(ii) False

(iii) False

(iv) False