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
Ans.High
Quest.The photosynthetic rate of C4 is …….. than C3 plants
Ans.Low
Quest.C4 plants normally give more biological yield than C3 plants because of
Ans.Less respiration
Quest.One NADH2 produces how many ATP molecules?
Ans.3
Quest.Oxygen is required by the plants for
Ans.Respiration (Plant Physiology One Liner)
Quest.Glycolysis occurs in
Ans.Cytoplasm
Quest.Final product of Glycolysis
Ans.Pyruvate
Quest.Net gain ATP during glycolysis
Ans.2
Quest.Kreb cycle and ETC occurs in
Ans.Mitochondria
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
Ans.Photorespiration
Quest.Photorespiration occurs in
Ans.Night
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
Ans.Vapour
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
Ans.Guttation
Quest.The irreversible change in any plant part (s) with respect to size, form, weight, volume etc.
Ans.Growth
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
Ans.Auxins
Quest.The senescence is delayed by
Ans.Cytokinin
Quest.Seed dormancy of seed is broken by
Ans.Cytokinin
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
Ans.Photoperiodism
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
Ans.Source
Quest.The region of plants in which translocated food is utilized or immobilized
Ans.Sink
Quest.Concentration of a nutrient in plant tissue where growth of the plant is slowed down
Ans.Critical concentration
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