Plant Physiology One Liner For Agri exam -2

Plant Physiology One Liner

Plant Physiology One Liner

Quest. C4 plants are

Ans.Maize, Sorghum, Sugarcane, millets etc.

Quest.The most important enzyme involved in photosynthetic CO2 fixation in C4 plants

Ans.PEP carboxylase

Quest.C4 plants have

Ans.Kranz type leaf

Quest.CAM denotes

Ans.Crassulacean Acid Metabolism

Quest.The example of CAM plants are

Ans.Pineapple and Opuntia

(Plant Physiology One Liner)

Quest.The water use efficiency of C4 is …….. than C3 plants


Quest.The photosynthetic rate of C4 is …….. than C3 plants


Quest.C4 plants normally give more biological yield than C3 plants because of

Ans.Less respiration

Quest.One NADH2 produces how many ATP molecules?


Quest.Oxygen is required by the plants for

Ans.Respiration (Plant Physiology One Liner)

Quest.Glycolysis occurs in


Quest.Final product of Glycolysis


Quest.Net gain ATP during glycolysis


Quest.Kreb cycle and ETC occurs in


Quest.Net gain ATP synthesis from one molecule of glucose in respiration

Ans.36 ATP (Plant Physiology One Liner)

Quest.One molecules of ATP yields

Ans.7.6 Kcal energy

Quest.An energy spending process


Quest.Photorespiration occurs in


Quest.Photorespiration occurs only in

Ans.Chlorophyllous cells

Quest.The loss of water in the form of vapour from the living aerial parts of the plant is known as

Ans.Transpiration (Plant Physiology One Liner)

Quest.The principle organ of transpiration is

Ans.Stomata of leaf (90%transpiration)

Quest.The water is lost during transpiration in the form of


Quest.Stomata is found mainly on

Ans.Lower surface of leaves

Quest.Opening and closing of stomata are due to its

Ans.Turgidity and faccidity

Quest.The types of stomata mostly present on lower surface of leaves

Ans.Potato type (Plant Physiology One Liner)

Quest.Stomata that is present on only under surface of leaf.

Ans.Apple and Mulberry type

Quest.The loss of water (contains salts and minerals) through hydathodes in liquid form during night and regulated by root pressure


Quest.The irreversible change in any plant part (s) with respect to size, form, weight, volume etc.


Quest.The phasic change of individual cells into tissues, organs and organisms

Ans.Development (Plant Physiology One Liner)

Quest.The growth rate of plants is measured by

Ans.Auxanometer and Crescograph

Quest.The element which takes part in the growth and development of plants

Ans.Plant nutrients

Quest.Organic compounds which inhibit or modify any physiological process

Ans.Plant Growth Regulators (PGRs)

Quest.Growth promoters are

Ans.Auxins, Gibberellins and Cytokinin

Quest.Example of growth inhibitors

Ans.Abscisic acid and Ethylene (Plant Physiology One Liner)

Quest.The PGR causes apical bud dominance


Quest.The senescence is delayed by


Quest.Seed dormancy of seed is broken by


Quest.Seed dormancy is induced by

Ans.Abscisic acid

Quest.PGR used for fruit ripening

Ans.Ethylene (Plant Physiology One Liner)

Quest.Abscisic acid is synthesized from

Ans.Actively growing points

Quest.Cytokinin is mainly synthesized in

Ans.Root tips

Quest.PGR related to drought tolerance and stress hardness in plants

Ans.Abscisic acid

Quest.The physiological response of plants in relation to length of light


Quest.Short day plants require day length

Ans.<10 hrs (Plant Physiology One Liner)

Quest.Kharif crops requires

Ans.Shorter day length

Quest.Generally rabi crops are

Ans.Long day plants

Quest.Long day plants require day length

Ans.>14 hrs

Quest.The sites of Vernalisation

Ans.Apical buds/Growing point

Quest.For germination, seed depends on external source for supply of

Ans.Water (Plant Physiology One Liner)

Quest.The temperature at which highest percentage of seed germination occurs in short period of time

Ans.Optimum temperature

Quest.Ca is essential for

Ans.Cell wall formation

Quest.The region of plants in which food to be translocated originates


Quest.The region of plants in which translocated food is utilized or immobilized


Quest.Concentration of a nutrient in plant tissue where growth of the plant is slowed down

Ans.Critical concentration

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