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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Photosynthesis Set 2

Q1 | Match Column – I with given under Column – II ; choose the answer which gives correct combination:Column – I(Scientists) Column – II(Contributions)P. A pigment which absorbs red and far-red light (i) CytochromeQ. Main pigment involved in transfer of electrons in (ii) PEP carboxylase photosynthesis isR. NADPH2 is generated through.... (iii) PhotochromeS. Enzyme which fixes CO2 in C4 plants (iv) Photosystems
Q2 | The basic feature of typical C4 plants showing ‘Kranz’ anatomy is
Q3 | A. Six turns of Calvin-cycle result in the production of one molecule of glucose (C6H12O6) R. Three molecules of ribulose 1, 5 – bisphosphate (Ru BP) react with three molecules of carbon dioxide to produce six carbon intermediates.
Q4 | Maximum photosynthesis occurs in which of these lights ?
Q5 | In C4 plants showing Kranz anatomy which of the following is correct ?
Q6 | In Blackmann’s ‘Law of Limiting Factors’ the rate of photosynthesis continues to increase with the successive increase in the amounts of
Q7 | Choose the correct statement
Q8 | Chlorophyll a is absent in which of the following photosynthesising organisms ?
Q9 | Photorespiration in C3 plants starts from.
Q10 | Which one of the following is wrong in relation to photorespiration ? It
Q11 | In sugarcane plant CO2 is fixed in malic acid, in which the enzyme that fixes CO2 is
Q12 | Plants are removed from patients room at night because
Q13 | Who is that scientist who gave the Law of limiting factors ?
Q14 | Which of the following is correct for chlorophyll of cyanobacteria ?
Q15 | How many electrons are involved for the formation of 1 mole of glucose and 6O2 molecules ?
Q16 | A. The atmospheric concentration of CO2 at which photosynthesis just compensation point.R. The CO2 compensation point is reached when the amount of CO2 uptake is less than that generated through respiration because the level of CO2 in the atmosphere is more than that required for achieving CO2 compensation point.
Q17 | Choose the correct statement.
Q18 | Match the names of scientists given under Column – I with their important contributions given underColumn – II ; choose the answer which gives correct combination of the alphabets :Column – I(Scientists) Column – II(Contributions)P. Peter Mitchell (i) Law of limiting factorQ. Blackmann (ii) Dark reactionR. Daniel Arnon (iii) Photosynthetic phosphorylationS. Melvin Calvin (iv) Chemiosmotic hypothesist. Mass flow hyposhesis
Q19 | Match the following with correct combinationP. Carboxylation (i). Oxygen evolutionQ. Phosphorylation (ii) PhotorespirationR. Photolysis of water (iii) RubiscoS. Phosphoglycolate (iv) ChemosynthesisT. Nitrosomonas (v)ATP
Q20 | During photosynthessis, plants
Q21 | A plant with low CO2 compensation point is
Q22 | Rubisco is an enzyme for
Q23 | Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because :
Q24 | Stomata of CAM plants
Q25 | The Calvin cycle proceeds in three stages1. reduction, during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH2. regeneration, during which the carbon dioxide acceptor ribulose – 1, 5 – biphosphate is formed3. carboxylation, during which carbon dioxide combines with ribulose – 1, 5 - biophosphate