Samacheer Kalvi Class 11 Bio Botany Photosynthetic Questions - 1

Question: 1

Biosynthesis of chlorophyll ‘a’ requires

(A) Mg, Fe, Cu, Mo, Mn, K and nitrogen

(B) Mg, Cu, Zn, Mo, Mn, K and nitrogen

(C) Mg, Fe, Cu, Zn, Mo, K and nitrogen

(D) Mg, Fe, Cu, Zn, Mn, K and nitrogen

Question: 2

Bacterial photosynthesis differs from higher plant photosynthesis in

(A) Releasing sulphur instead of oxygen

(B) Utilizing SO₂ as electron donar

(C) Releasing O₂

(D) Utilizing water as electron donar

Question: 3

Crassulacean acid metabolism or CAM cycle was first observed in

(A) Bryophyllum

(B) Banana

(C) Mango

(D) Sugarcane

Question: 4

The key enzyme in the carboxylation reaction is

(A) Carboxylase oxygenase

(B) Carboxyl anhydrase

(C) Carboxylase

(D) Ribulose dehydrogenase

Question: 5

The visible spectrum of light ranges between

(A) 200 to 800 nm

(B) 200 to 2800 nm

(C) 300 to 2400 nm

(D) 300 to 2600 nm

Question: 6

ATP required to release electron is

(A) 12 ATP

(B) 18 ATP

(C) 22 ATP

(D) 48 ATP

Question: 7

Identify true statement regarding light reaction of photosynthesis?

(A) The reaction center of PSI is Chlorophyll a with absorption peak at 680nm

(B) The reaction center of PS II is Chlorophyll a with absorption peak at 700 nm

(C) Splitting of water molecule is associate with PS I.

(D) PS I and PS II involved in the formation of NADPH + H⁺