Stomata open at night in
Stomata open at night in
Options
(a) hydrophytes (b) succulents (c) mesophytes (d) halophytes
Correct Answer:
succulents
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Transport and Nutrition in Plants
Stomata in grass leaf are
Stomata in grass leaf are
Options
(a) Barrel shaped (b) Rectangular (c) Kidney shaped (d) Dumb-bell shaped
Correct Answer:
Dumb-bell shaped
Explanation:
Grass being a monocot, has Dumb-bell shaped stomata in their leaves.
Solute potential of a solution is always
Solute potential of a solution is always
Options
(a) 0 (b) >0 (c)
SirJC Bose proposed which of the following theory to explain the process of
Sir.J.C. Bose proposed which of the following theory to explain the process of ascent of sap?
Options
(a) pulsation theory (b) relay pump theory (c) transpiration pull theory (d) capillary force theory
Correct […]
Simultaneous movement of two molecules across a membrane in the same direction
Simultaneous movement of two molecules across a membrane in the same direction is known as
Options
(a) antiport (b) symport (c) uniport (d) biport
Correct Answer:
symport
Explanation:
No explanation available. Be the […]
Root pressure is due to
Root pressure is due to
Options
(a) passive transport (b) gravitation (c) active transport (d) diffusion
Correct Answer:
active transport
Explanation:
As various ions from the soil are actively transported into the vascular […]
Radial conduction of water takes place by
Radial conduction of water takes place by
Options
(a) vessels (b) vessels and tracheids (c) phloem (d) ray parenchyma cells
Correct Answer:
ray parenchyma cells
Explanation:
Ray parenchyma cells are the living components […]
Plants obtain carbon and most of their oxygen from
Plants obtain carbon and most of their oxygen from
Options
(a) soil (b) symbiotic association (c) CO₂ from the atmosphere (d) water
Correct Answer:
CO₂ from the atmosphere
Explanation:
Plants obtain most of […]
Plants could be grown to maturity in a defined nutrient solution was demonstrated
Plants could be grown to maturity in a defined nutrient solution was demonstrated for the first time by
Options
(a) Priestley (b) Von Sacchs (c) Ingenhousz (d) Van Niel
Correct Answer:
Von Sacchs
Plants can be cultivated in soilless medium where all required nutrients are
Plants can be cultivated in soil-less medium where all required nutrients are supplied from the outside in water solution, this method comes under
Options
(a) water culture (b) hydroponics (c) hyprid culture (d) […]