Topical Test 6 : Photosynthesis

The raw materials needed for photosynthesis include

• A. oxygen and water
• B. glucose and carbon dioxide
• C. glucose and oxygen
• D. carbon dioxide and water

Which of the following does not occur during light dependent reaction.

• A. Electron transport
• B. Reduction of CO2
• C. Oxygen liberation
• D. Chemiosmosis

Photolysis of water occurs in

• A. stroma of choloroplast
• B. thylakoid space
• C. thylakoid membrane
• D. intermembrane space of choloroplast.

Product of non cyclic photophosphorylation is/are

• A. ATP only
• B. ATP and oxygen
• C. ATP, oxygen and NADPH
• D. Oxygen and NADPH

Product of cyclic photophosphorylation is/are

• A. ATP only
• B. ATP and oxygen
• C. ATP, oxygen and NADPH
• D. Oxygen and NADPH

How many proton and electron are needed to reduce one molecule of NADPH+

• A. 1 electron and 1 proton
• B. 1 electron and 2 proton
• C. 2 electron and 1 proton
• D. 2 electron and 2 proton

In light dependent reaction of photosynthesis, water donates electron directly to

• A. photosystem I
• B. photosystem II
• C. NADP+
• D. ATP

In photosynthesis, energy released by photoexcited electrons is used

• A. to produce ATP
• B. in the photoactivation of photosystem
• C. to oxidise NADP+
• D. in the photolysis of water

During the light dependent phase of photosynthesis

• A. ATP is hydrolysed and NADPH is oxidised
• B. ATP is hydrolysed and NADP+ is reduced.
• C. ATP is phosphorylated and NADPH is oxidised
• D. ATP is phosphorylated and NADP+ is reduced

What are the product of the light independent reaction of photosynthesis

• A. Glucose, NADP+ and ADP
• B. Glucose, ATP and carbon dioxide
• C. NADPH, ATP and P
• D. ATP, NADPH and carbon dioxide