Useful for Medical Entrance Exams: AIPMT / AFMC /JIPMER / AIIMS / JIPMER /Manipal UGET / CMC Vellore / AMU/ BHU

Multiple Choice Questions on Plant Physiology

1. The closure of lid of pitcher in Nepenthes is
A) A turgor movement 
B) A paratonic movement
C) A tropic movement 
D) An autonomic movement

2. Organelles involved in photorespiration are
A) Mitochondria, chloroplasts and ribosomes
B) Mitochondria, chloroplasts and peroxisomes
C) Mitochondria, nucleus and ribosomes
D) Mitochondria, peroxisomes and glyoxisomes

3. A system of growing plants with their roots supplied with moisture in the air

A) Hydroponics
B) Aeroponics
C) Bionomics
D) Geonomics

4.Oxidative phosphorylation is a process that
A) Occurs during respiration
B) Occurs during photosynthesis
C) Occurs in the thylakoid membrane
D) Involves PS I and PS II

5.In eukaryotes ATP-Synthase enzyme involved in respiration is in the
A) Cytoplasam 
B) Mitochondrial matrix
C) Oxysomes 
D) Quantasomes

6.The equilibrium attained between the electric potential and concentration gradient
in a closed system with two compartments separated by a semi-permeable
membrane
A) Hardy-Weinberg equilibrium
B) Donnan equilibrium
C) Maxwell-Boltzmann equilibrium
D) Michaelis-Menten equilibrium

7. Molecular formula of chlorophyll a is
chlorophyll a

A) C55H70O5N4Mg 
B) C55H72O6N4Mg
C) C55H70O6N4Mg 
D) C55H72O5N4Mg

8.The movement of solutes in the phloem is mainly
A) Lateral 
B) Acropetal
C) Basipetal 
D) Centripetal

9. The first stable compound in Hatch and Slack cycle is
A) Pyruvic acid 
B) Malic acid
C) Citric acid 
D) Oxalo acetic acid

10. Q10 refers to
A) Quantum recharge
B) Respiratory coefficient
C) A temperature coefficient
D) Photosynthetic active radiation (PAR) coefficient
Answers:
1. B) A paratonic movement
2. B) Mitochondria, chloroplasts and peroxisomes
3. B) Aeroponics (Refer: Aeroponics vs Hydroponics)
4. A) Occurs during respiration
5. C) Oxysomes 
6. B) Donnan equilibrium
7.  D) C55H72O5N4Mg
8. C) Basipetal 
9. D) Oxalo acetic acid
10. C) A temperature coefficient

.

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