Introduction
Plant Physiology – Plant Physiology is the study of inner activities of the plant. It is the ‘Body Functioning‘ of a plant, sometime, which can be noticed in the outer regions of the plant as an Indicator showing a plant’s body reaction as a result e. g., Physiological Dis-order.
Plant Physiology Multiple Choice Objective Questions and Answers – Plant Physiology is an important subject both in B. Sc. (Ag.) and M. Sc. (Ag.). Multiple Choice Objective Questions from this subject are included in various Agriculture Competitive Exams e. g., CET, JRF, ICAR and other Agriculture Entrance Exams of different countries.
NOTE: This page is updated every Friday (Morning). Number of questions in each update – 2 to 5.
Last Updated: 27/09/2019 at 08:23 am IST.
Number of Question Added #26-30.
PLANT PHYSIOLOGY MCQ’s
Question – #1. Which is a C4 plant?
(a). Soyabean.
(b). corn.
(c). pineapple.
(d). All of the above.
Question – #2. Which is known as hatch-slack pathway?
(a). C2.
(b). C3.
(c). C4.
(d). Non of the above.
Question – #3. Reverse Krebs Cycle is found in?
(a). Bacteria.
(b). Higher plants.
(c). C4 plants.
(d). Fungus.
Question – #4. Cruciferous type stomata is?
(a). Anisocytic.
(b). Actinocytic.
(c). Animocytic.
(d). diacytic.
Question – #5. Which is true for Plant harmone?
(a). It is produced by the plant in a specific site.
(b). It is produced in each plant cell.
(c). Both ‘a’ and ‘b’.
(d). Only ‘b’ is true.
Question- #6. Which is true?
(a). Primary xylem is formed from the vascular cambium.
(b). Secondary xylem is formed from the procambium xylem.
(c). Both a and b.
(d). Non of the above.
Question- #7. Vessel element is found in?
(a). Xylem .
(b). Phloem.
(c). Both a and b.
(d). Non of the above.
Question- #8. Vessel member is found in?
(a). Xylem.
(b). Phloem.
(c). Chloroplast.
(d). Non of the above.
Question- #9. Which is continuous source of water in C4 cycle?
(a). Only Xylem.
(b). Only phloem
(c). Vascular tissue which consists both xylem and phloem.
(d). Stoma.
Question- #10. Which is true about carbon fertilization effect?
(a). Increased rate of photosynthesis.
(b). Decreased rate of photosynthesis.
(c). Increased rate of carbon fixation.
(d). Decreased rate of carbon fixation.
Question- #11. In photosynthesis oxygen is considered as?
(a). Main product.
(b). By product.
(c). Waste product.
(d). Non of the above.
Question- #12. Function of chloroplast includes?
(a). Amino acid synthesis.
(b). Fatty acid synthesis.
(c). Immune response in plants.
(d). All of the above.
Question- #13. Hidden hunger in plant is…..?
(a). in which plant shows deficiency symptoms.
(b). in which plant doesn’t show deficiency symptoms.
(c). in which plant needs supply of essential nutrients.
(d). in which plant doesn’t need supply of essential nutrients.
Question- #14. Total water uptake by the plants in active water absorption is?
(a). 5%.
(b). 4%.
(c). 3%.
(d). 6%.
Question- #15. Theory of active osmotic water absorption was given by?
(a). Atkins.
(b). Preistley.
(c). Both a and b.
(d). Thimann and Kramer.
Question- #16. Which is a CAM plant?
(a). Mango.
(b). Tamarind.
(c). Kiwifruit.
(d). Pineapple.
Question- #17. Inducible CAM plants use the following cycle?
(a). C3.
(b). C4.
(c). CAM.
(d). All of the above.
Question- #18. Malic acid is stored in vacuoles by?
(a). CAM plants.
(b). C4 plants.
(c). C3 plants.
(d). All of the above.
Question- #19. Upright growth of stem is an example of?
(a). Positive geo tropism.
(b). Negative geotropism.
(c). Photo tropism.
(d). Auxi-tropism.
Question- #20. Metabolic inhibitor anti-transpirant is?
(a). ABA.
(b). Aspirin.
(c). Both a and b.
(d). Silicon.
Question- #21. The upward movement of water in plant is known?
(a). Ascent of sap.
(b). Ascent of water.
(b). Ascent of moisture.
(d). Ascent of liquid water.
Question- #22. Root pressure theory was given by?
(a). Godlewaski.
(b). J. C. Bose.
(c). Stephan Hales.
(d). Boehm.
Question- #23. In C4 plants photosynthetic rate is..?
(a). Higher.
(b). Lower.
(c). Both a and b.
(d). Ultra low.
Question- #24. Capability of fixing the Co2 lost in respiration is found in?
(a). C4 plants.
(b). C3 plants.
(c). CAM plants.
(d). All of the above.
Question- #25. R. Q. value of succulents is?
(a). 0.9.
(b). 0.8.
(c). 0.6.
(d). Only 0..
Question- #26. Who is known father of plant physiology?
(a). W. Kuntis.
(b). Funk.
(c). Fisher.
(d). Stephen hales.
Question- #27. In germinating seeds sugar is present as?
(a). Maltose.
(b). Glucose.
(c). Galactose.
(d). Fructose.
Question- #28. For stratification seed is treated with….?
(a). Moist seeds with Low temperature.
(b). Only low temperature.
(c). Only moist micro-environment.
(d). Warm and moist micro-environment.
Question- #29. The term vernalization was given by?
(a). Chailakyan.
(b). Emerson.
(c). Lysenko.
(d). Lewis.
Question- #30. Best method of applying mineral against mineral deficiency is?
(a). Foliar spray.
(b). Root zone application.
(c). Soil application.
(d). Fertigation.
NOTE: This page is updated every Friday (Morning). Number of questions in each update – 2 to 5.
Last Updated: 27/09/2019 at 08:23 am, IST.
Number of Questions Updated: #26-30.
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