Plant Physiology Question for JRF
"Test your knowledge of Plant Physiology with this JRF-level quiz! 🌾 Sharpen concepts for competitive exams with MCQs, explanations & more."
🌾 Plant physiology JRF🌾
Questions in Quiz Format
🌱Plant physiology Set No.1🌱
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1. Who is known as father of plant physiology?
A) Such.
B) Stephan Hales
C) Abbe Nollel.
D) None of the above
2. What type of membrane is a plasma membrane?
A) Semi permeable.
B) Permeable.
C) Impermeable
D) All of the above
3. What types of roots are responsible for most of the water absorption?
A) Root hairs
B) Tape roots
C) Both a and b
D) None of the above
4. Which is responsible for the upward movement of soil nutrients in plants?
A) Xylem
B) Phloem
C) Both a and b
D) None of the above
5. Who gave pulsation theory?
A) Godlewski
B) Blackman
C) J.C. Bose
D) None of the above
6. What is manometer?
A) It is an instrument for measuring root pressure
B) It is an instrument for measuring stomatal pressure
C) It is an instrument for measuring cell pressure
D) None of the above
7. Which is true about plant cell wall?
A) It is impermeable in nature
B) It is permeable in nature
C) It is never permeable in nature
D) None of the above
8. In which form are minerals translocated in plants?
A) Organic compounds
B) Inorganic compounds
C) Both a and b
D) None of the above
9. What is the full form of PAR?
A) Photosynthesis Active Radiation
B) Photolysis Active Radiation.
C) Photosynthesis Active Reaction
D) Photolysis Active Reaction
10. At what range does PAR occur?
A) 100-250 nm
B) 300-400 nm
C) 700-900 nm
D) 400-700 nm
11. Which one is the element of chlorophyll?
A) Mn
B) Zn
C) Mg
D) Fe
12. Which pigment is responsible for photosynthesis in higher plants?
A) Chlorophyll a
B) Chlorophyll b
C) Both a and b
D) None of the above
13. What is the colour of chlorophyll a?
A) Blue green
B) Violet green
C) Dark green
D) Yellow green
14. What is the colour of chlorophyll b?
A) Pale yellow
B) Orange green
C) Light green
D) Yellow green
15. By what name is light reaction also known as?
A) C4 cycle
B) Hill reaction.
C) Both a and b
D) None of the above.
16. Where does the Hill reaction take place?
A) Grana of chlorophyll
B) Stroma of chlorophyll
C) Lumen of chlorophyll
D) Thylakoids of chlorophyll
17. By what name is C3 cycle also known as?
A) Dark reaction
B) Calvin cycle
C) Both a and b
D) None of the above
18. Where does the dark reaction take place?
A) Grana of chlorophyll
B) Stroma of chlorophyll
C) Lumen of chlorophyll
D) Thylakoids of chlorophyll
19. Where are grana and stroma present?
A) chloroplast
B) Mitochondria
C) Thalakoides
D) Lumen
20. Which is also as Blackman reaction?
A) C3 cycle
B) C4 cycle
C) Both a and b
D) None of the above
21. What is the final product of C3 pathway?
A) Rubisco
B) 3 PGA
C) 3 ATP
D) None of the above
22. What is the another name of Hatch and slack pathway?
A) Calvin cycle
B) C3 cycle
C) C4 cycle
D) None of the above
23. Which is an example of C3 plant?
A) Rice
B) Wheat
C) Pea
D) All of the above
24. Which is the first product of C4 pathway?
A) Oxalo acetic acid
B) Rubisco
C) ATP
D) All of the above
25. Which is an example of C4 plant?
A) Maize
B) Sorghum
C) Sugarcane
D) All of the above
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🌱 Plant physiology Set No.2
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1. Which is the most important enzyme involved in photosynthetic CO2 fixation in C4 plants?
A) Rubisco
B) PEP carboxylase
C) Both a and b
D) None of the above
2. Which is the most important enzyme involved in photosynthetic CO2 fixation in C4 plants?
A) Rubisco.
B) PEP carboxylase
C) Both a and b.
D) None of the above
3. Which has Kranz type leaf?
A) C4 plant.
B) C3 plant.
C) CAM plant.
D) All of the above
4. What is the full form of CAM?
A) Crassulacean Acetic Metabolism.
B) Crassulacean Acid Metabolites.
C) Either a or b.
D) Crassulacean Acid Metabolism.
5. Which is an example of CAM plant?
A) Pineapple.
B) Opuntia.
C) Both a and b.
D) None of the above.
6. What is the water use efficiency of CAM plants?
A) It is lower than C3 plants.
B) It is similar to C3 plants.
C) It higher than C3 plants.
D) None of these
7. What is the net gain ATP during glycolysis?
A) 2
B) 3
C) 4
D) 8
8. What is the net gain ATP synthesis from one molecule of glucose in respiration?
A) 32 ATP.
B) 30 ATP.
C) 36 ATP
D) 38 ATP.
9. When does the photorespiration occur?
A) Day.
B) Afternoon.
C) Night.
D) Evening.
10. Which is the principle organ of transpiration?
A) Stomata of bark.
B) Stomata of leaf.
C) Stomata of fruits.
D) Stomata of flowers.
11. The most of stomata mostly present on lower surface of leaves:
A) Potato type.
B) Apple type
C) Mulberry type.
D) All of the above.
12. How is the growth rate of plant measured?
A) By using auxanometer.
B) By using crescograph.
C) Both a and b.
D) None of the above.
13. Which is known for apical dominance?
A) Cytokinin.
B) Gibberllin.
C) Auxin.
D) Ethylene.
14. Which is not a PGR?
A) Auxin.
B) Ethylene.
C) Cytokinin.
D) Molybdenum.
15. What is the full form of PGR?
A) Plant Growth Regulation.
B) Plant Growth Regulators.
C) Plant Growing Regulator.
D) None of the above.
16. Which is an example of plant growth inhibitor?
A) Ethylene.
B) NAA.
C) ABA
D) Cytokinin.
17. Which is the cause for delayed senescence?
A) Ethylene.
B) Gibberllin.
C) ABA.
D) Cytokinin.
18. Which is used to break the dormancy of seeds?
A) GA3.
B) 2,4-D.
C) NAA.
D) ABA.
19. Which is fruit ripening hormone?
A) Cytokinin.
B) Auxin.
C) ABA.
D) None of the above
20. Which is responsible for cell division?
A) Cytokinin.
B) Auxin.
C) ABA.
D) None of the above.
21. Which is a physiological disorder of paddy?
A) Sheath blight.
B) Stem rot.
C) Khaira disease
D) False smut
22. Of which fruit crop is spongy tissue is a physiological disorder?
A) Apple.
B) Banana.
C) Ber.
D) Mango.
23. What is the cause of Cat face of tomato?
A) Deficiency of B
B) Deficiency of Fe
C) Deficiency of Ca
D) Deficiency of Mn.
24. To which group does the whiptail belong?
A) Poaceace.
B) Cole crops.
C) Cucurbitaceae.
D) Malvaceae.
25. What is the requirement of long day plants?
A) 10 hours of day length.
B) 12 hours of day length.
C) 14 hours of day length.
D) 16 hours of day length.
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