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
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 […]
The value of water potential for pure water is
Options
(a) always positive or more than zero (b) always negative or less than zero (c) always zero (d) variable in different solution
Correct […]
The type of transport taking place across biomembranes without the help of proteins is
Options
(a) facilitated diffusion (b) active transport (c) simple diffusion (d) diffusion via symport
Correct Answer:
simple diffusion
Explanation: […]
The transport of ions up the stem to all parts is through
Options
(a) transpiration stream (b) mass flow (c) diffusion (d) active transport
Correct Answer:
transpiration stream
Explanation:
After the ions have […]
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