Cell elongation is adversely affected by / Element required by plant in large quantity is
Options
(a) Sodium (b) Cobalt (c) Manganese (d) Nitrogen
Correct Answer:
Nitrogen
Explanation:
The deficiency of nitrogen causes […]
By protoplasmic streaming theory,how sugar is translocated from one sieve tube to other
Options
(a) Diffusion (b) Osmosis (c) Absorption (d) Active transport
Correct Answer:
Diffusion
Explanation:
The movement of the molecules of […]
Brown heart disease in cauliflower is due to the deficiency of
Options
(a) iron (b) boron (c) copper (d) phosphorus
Correct Answer:
boron
Explanation:
Brown heart disease of cauliflower is due to boron […]
An essential element is one
Options
(a) Improve plant growth (b) Present in plant ash (c) Is indispensable for growth and is irreplaceable (d) Available in soil
Correct Answer:
Is indispensable for growth […]
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 […]
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 […]
Water enters from soil into the root hairs due to
Options
(a) turgor pressure of root hair (b) osmotic pressure of root hair (c) suction pressure (d) diffusion pressure
Correct Answer:
suction pressure
Uphill transport is a type of
Options
(a) active transport (b) facilitated diffusion (c) simple diffusion (d) passive transport
Correct Answer:
active transport
Explanation:
Active transport of solute occures against the concentration gradient […]
Unloading of minerals occur at
Options
(a) apical meristem (b) fine vein ending (c) fruits (d) apical meristem & fine vein ending & fruits
Correct Answer:
apical meristem & fine vein ending & […]
Transpirtation is very important for plants because it helps in
Options
(a) the absorption of water from soil (b) the cooling of leaves at high temperature (c) the movement of water and minerals […]
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