Photosynthesis in Plants-II Biology Test Series for NEET-2020

Test Preparation on Photosynthesis in plants–II - Biology Test Series for NEET - 2020

The C₄ plants are photosynthetically more efficient than C₃
plants because
(a) The CO₂ efflux is not prevented
(b) They have more chloroplasts
(c) The CO₂ compensation point is more
(d) CO₂ generated during photorespiration is trapped and
recycled through PEP carboxylase

1(a)
2(b)
3(c)
4(d)

In C₄ plants, the bundle sheath cells

1Have thin walls of facilitate the gaseous exchange
2Have large intercellular spaces
3Are rich in PEP carboxylase
4Have a high density of chloroplasts and rich in RuBisCo

The first carbon fixation in C₄ pathway occurs in
chloroplasts of

1Guard cells
2Mesophyll cells
3Bundle sheath cells
4Epidermal cells

During photorespiration, the oxygen consuming reaction (s)
occur in

1Grana of chloroplasts and peroxisomes
2Stroma of chloroplasts
3Stroma of chloroplasts and mitochondria
4Stroma of chloroplasts and peroxisomes

Photorespiration shows formation of

1Sugar but not ATP
2ATP but not sugar
3Both ATP and sugar
4Neither ATP nor sugar

In C₄ plants, Calvin cycle occurs in
(a) Stroma of bundle sheath chloroplast
(b) Mesophyll chloroplast
(c) Grana of bundle sheath chloroplast
(d) Does not occur as CO₂ is fixed mainly by PEP and no
CO₂ is left for Calvin cycle

1(a)
2(b)
3(c)
4(d)

Photorespiration is characteristic of
(a) CAM Plants (b) C₃ Plants
(c) C₄ Plants (d) None of the above

1(a)
2(b)
3(c)
4(d)

Which of the following is CO₂ acceptor in C₄ plants

1Phosphoenol pyruvate (PEP)
2Ribulose 1, 5–diphosphate (RuDP)
3Oxaloacetic acid (OAA)
4Phosphoglyceric acid (PGA)

(a) One of the basic features of C₄ plants is that CO₂ is
trapped by a CO₂ acceptor, phosphoenol pyruvic acid
present in the (PEP) chloroplasts of mesophyll cells of
these leaves, leading to the formation of a 4-C
compound oxaloactic acid.

Which of the following cycle shows oxaloacetic acid as first
stable product
(a) Calvin cycle (b) Hatch and Slack cycle (C₄)
(c) C₂ cycle (d) None of the above

1(a)
2(b)
3(c)
4(d)

(b) In Hatch-Slack pathway, first product of CO₂ fixation is
a 4 carbon compound, oxaloacetic acid hence they are
called C₄ plants. This acid is converted to another 4-C
acid, the malic acid.

Check your progress:


Right Ans	Wrong Ans	Not Attempted

Prev Question Next Question Show Answer

Test Preparation on Photosynthesis in plants–II - Biology Test Series for NEET - 2020

The C4 plants are photosynthetically more efficient than C3plants because(a) The CO2 efflux is not prevented(b) They have more chloroplasts(c) The CO2 compensation point is more(d) CO2 generated during photorespiration is trapped andrecycled through PEP carboxylase

In C4 plants, the bundle sheath cells

The first carbon fixation in C4 pathway occurs inchloroplasts of

During photorespiration, the oxygen consuming reaction (s)occur in

Photorespiration shows formation of

In C4 plants, Calvin cycle occurs in(a) Stroma of bundle sheath chloroplast(b) Mesophyll chloroplast(c) Grana of bundle sheath chloroplast(d) Does not occur as CO2 is fixed mainly by PEP and noCO2 is left for Calvin cycle

Photorespiration is characteristic of(a) CAM Plants (b) C3 Plants(c) C4 Plants (d) None of the above

Which of the following is CO2 acceptor in C4 plants

Which of the following cycle shows oxaloacetic acid as firststable product(a) Calvin cycle (b) Hatch and Slack cycle (C4)(c) C2 cycle (d) None of the above

Check your progress: