Stomata open at night in
Stomata open at night in Options (a) hydrophytes (b) succulents (c) mesophytes (d) halophytes Correct Answer: succulentsExplanation:No explanation available. Be…
5 years ago
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…
5 years ago
Solute potential of a solution is always
Solute potential of a solution is always Options (a) 0 (b) >0 (c)
5 years ago
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…
5 years ago
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…
5 years ago
Root pressure is due to
Root pressure is due to Options (a) passive transport (b) gravitation (c) active transport (d) diffusion Correct Answer: active transportExplanation:As…
5 years ago
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…
5 years ago
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…
5 years ago
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)…
5 years ago
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…
5 years ago