When a bottle of perfume is placed at one corner of a room and the lid opened
When a bottle of perfume is placed at one corner of a room and the lid opened, the scent spreads all over the room after sometime. This happens by the process of
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Questions
What will be the effect of accumulation of K ions in guard cells
What will be the effect of accumulation of K⁺ ions in guard cells
Options
(a) Water potential increases (b) Water potential decreases (c) Loss of turgidity (d) Exosmosis
Correct Answer:
Water potential decreases
What will be the direction of movement of water when a solution A having water
What will be the direction of movement of water, when a solution A having water potential of – 9 bars and another solution of B of -4 bars is separated by a semipermeable membrane?
What is the role of NAD in cellular respiration
What is the role of NAD+ in cellular respiration?
Options
(a) It is the final electron acceptor for anaerobic respiration. (b) It is a nucleotide source for ATP synthesis (c) It functions as […]
What is the correct about the movement of substance across the membrane in
What is the correct about the movement of substance across the membrane in facilitated diffusion?
Options
(a) it is an active transport (b) it doesn’t cause transport of molecules from low concentration to […]
What is genophore
What is genophore?
Options
(a) DNA in prokaryotes (b) DNA and RNA in prokaryotes (c) DNA and protein in prokaryotes (d) RNA in prokaryotes
Correct Answer:
DNA in prokaryotes
Explanation:
No explanation available. […]
Water reaches the top of a plant due to
Water reaches the top of a plant due to
Options
(a) root pressure (b) capillarity (c) transpiration (d) diffusion
Correct Answer:
transpiration
Explanation:
Water is mainly absorbed by roots which goes upwards so […]
Water movement between cells is due to
Water movement between cells is due to
Options
(a) T.P (b) W.P (c) D.P.D (d) Incipient plasmolysis
Correct Answer:
D.P.D
Explanation:
No explanation available. Be the first to write the explanation for this […]
Ballon like outergrowth of parenchyma, into the lumen of vessels is known as
Ballon like outergrowth of parenchyma, into the lumen of vessels is known as
Options
(a) tunica (b) tyloses (c) phellogen (d) histogen
Correct Answer:
tyloses
Explanation:
No explanation available. Be the first to write […]
Water in the soil available to plants is
Water in the soil available to plants is
Options
(a) gravitational water (b) capillary water (c) hygroscopic water (d) hypertonic water
Correct Answer:
capillary water
Explanation:
Water is present in the soil in […]