Photosynthesis Questions: Paper - 02

Sr. No.

Questions

Answers

C₅₅H₇₀O₆N₄ Mg is

(A) An accessory pigment in photosynthesis

(B) Present in PS-II

(C) Present in all green plants

(D) All of these

The ionized chl.a⁺

(A) Receives low energy electron

(B) Receives high energy electron

(C) Expels low energy electron

(D) Expels high energy electron

In Calvin cycle,

(A) fructose 1,6 diphophate undergoes dephosphorylation. 

(B) ATP is formed during dephosphoylation of fructose

(C) 1,3 di PGA undergo phosphorylation

(D) none of these

What will happen to the rate of photosynthesis if sodium bicarbonate is added in the water having hydrilla plant in a beaker

(A) It will remain normal

(B) It will be decreased

(C) It will be stopped

(D) It will be accelerated

Which of the following gas would disappear from the atmosphere if all the photosynthetic activities were to stop?

(A)  Nitrogen 

(B) Carbondioxide

(C)  Hydrogen

(D) Oxygen

Photo-oxidation of chlorophyll and cell contents as a result of high light intensity is known as

(A) Solarization

(B) Photolysis

(C) Photperiodism

(D) Photorespiration

Temperature is very high but a plant is showing photosynthesis with normal rate, probably it would be

(A) C₃ plant 

(B) Mango plant

(C) Pea plant

(D) Sugarcane plant 

For the process of photosynthesis all except one of the following items are essential. Point out the exception

(A) CO₂, optimum temperature

(B) Glucose and oxygen

(C) Water and minerals

(D) Light and chlorophyll

The prerequisities of Calvins cycle are

(A) H₂O, CO₂, ATP

(B) ATP, H₂O, NADPH₂

(C) CO₂, ATP, NADPH₂

(D) NADPH₂, H₂O, CO₂

In the calvin cycle, the assimilatory power is used during

(A) Formation of PGA

(B) Conversion of  PGA to  PGAL

(C) Formation of fructose 1-6 diphsophate from PGAL

(D) Formation of glucose from fructose – di- phosphate

Unidirectional flow of e^- in non-cyclic photophosphorylation is

(A) PS II -- e- ---> PS I -- e- ---> NADP -- e- ---> water

(B) Water -- e- ---> PSII -- e- ---> PS I -- e- ---> NADP

(C) PS I -- e- ---> NADP -- e- ---> water -- e- ---> PS II

(D) Water -- e- ---> PS I -- e- ---> PS II -- e- ---> NADP

Which is sensitive to longer wavelength of light?

(A) Photolysis

(B)  PSI 

(C) PS II

(D) Photophosphorylation

Phytol tail is present at

(A) 3^rd carbon of IInd ring

(B) 2^nd carbon of IIIrd ring

(C) 7^th carbon of IVth ring

(D) 3^rd carbon of IVth ring

Reduction of co-enzyme NADP depends on

(A) Reduction of CO₂

(B) Evolution of O₂

(C) Photolysis of water

(D) Formation of ATP

Loculus is the internal space of

(A) Grana 

(B) Stroma

(C) Thylakoid

(D) Quantasome

Calvins cycle involves

(A) Oxidative phosphorylation

(B) Oxidative carboxylation

(C) Reductive carboxylation

(D) Reductive phophorylation

In C₄ plants, carboxylation is twice, it can be represented as

(A) Pyruvic acid + CO₂ malic acid + CO₂

(B) RUDP + CO₂ and pyruvic acid + CO₂

(C) PEPA + CO₂ and RUDP + CO₂

(D) PEPA + CO₂ and malic acid + CO₂

In non-cyclic photophosphorylation, all the participants acts as electron donor and acceptor except

(A) Chl-a of PS I 

(B) Chl-a of PS II

(C)  NADP 

(D) Both (A) and (B)

Ribbon shaped chloroplast is present in

(A) Zygnema 

(B) Spirogyra

(C) Chlorobium 

(D) Chromatinum

Which of the following protist is a photoautotroph

(A) Thiobacillus 

(B) Ferrobacillus

(C)  Diatoms

(D) Chlorobium