Plant Physiology Mock Tests

66 questions available

Plant Physiology Mock Test 1

Questions: 30

Plant Physiology Mock Test 2

Questions: 30

Plant Physiology Mock Test 3

Questions: 6

Sample Questions

NEET Biology

In C₄ plants, the primary CO₂ acceptor in the mesophyll cells is:

A Rubisco

B Phosphoenolpyruvate (PEP)

C Phosphoenolpyruvate carboxylase (PEPcase)

D RuBP carboxylase-oxygenase

NEET Biology

How many ATP molecules are produced from one molecule of glucose during aerobic respiration (net gain)?

A 2 ATP

B 36 ATP

C 38 ATP

D 34 ATP

NEET Biology

Which of the following is the correct match of the plant hormone with its function?

A Ethylene — promotes seed germination

B Abscisic acid — stomatal closure

C Cytokinin — inhibits lateral bud growth

D Auxin — promotes leaf abscission

NEET Biology

Which of the following is the primary function of the hormone auxin in plants?

A Promote leaf abscission

B Promote cell elongation and apical dominance

C Induce seed dormancy

D Promote fruit ripening

NEET Biology

In C₃ plants, photorespiration occurs under conditions of:

A high CO₂ and low O₂ concentrations

B low CO₂ and high O₂ concentrations

C high CO₂ and high O₂ concentrations

D low CO₂ and low O₂ concentrations

NEET Biology

Water potential (Ψ) determines the direction of water movement in plants. Which of the following statements about water potential is correct?

A Water potential is always positive in plant cells

B Water moves from regions of lower water potential to regions of higher water potential

C Pure water has the highest water potential, which is defined as zero

D Solute potential (Ψs) is always positive, and pressure potential (Ψp) is always negative

NEET Biology

In photosynthesis, the light reactions occur in the thylakoid membranes and produce:

A ATP and NADPH only

B ATP, NADPH, and O₂

C Glucose and ATP

D NADPH and glucose only

NEET Biology

In C4 plants, the primary CO₂ acceptor molecule is:

A RuBisCO

B Phosphoenolpyruvate (PEP)

C RuBP

D Oxaloacetate

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