A thin film of water held by the soil particles under the influence of internal
A thin film of water, held by the soil particles, under the influence of internal attractive forces, is called which…
4 years ago
Transport and Nutrition in Plants
A professor kept some moist seeds in an airtight jar and started lecturing
A professor kept some moist seeds in an air-tight jar and started lecturing. At the end of the experiment an…
4 years ago
A plant that manufactures its own food is
A plant that manufactures its own food is Options (a) Autotroph (b) Parasite (c) Epiphyte (d) Saprophyte Correct Answer: AutotrophExplanation:Autotrophs…
4 years ago
A metal ion involved in stomatal regulation is
A metal ion involved in stomatal regulation is Options (a) iron (b) potassium (c) zinc (d) magnesium Correct Answer: potassiumExplanation:Stomata…
4 years ago
A few drops of sap were collected by cutting across a plant stem by a suitable
A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was…
4 years ago
A cell when dipped in 05 M sucrose solution has no effect but when the same
A cell when dipped in 0.5 M sucrose solution has no effect but when the same cell will be dipped…
4 years ago
01M solution of a solute has a water potential of
0.1M solution of a solute has a water potential of Options (a) -2.3 bars (b) 0 bar (c) 22.4 bars…
4 years ago
Wilting of plant is due to
Wilting of plant is due to Options (a) blocked xylem (b) blocked phloem (c) removal of epidermis and few roots…
4 years ago
Who proposed cohesion theory of water movement in plants
Who proposed cohesion theory of water movement in plants? Options (a) J C Bose (b) Priestly (c) Dixon and Jolly…
4 years ago
Which one of the following elements is necessary for the translocation of
Which one of the following elements is necessary for the translocation of sugars in plants Options (a) Iron (b) Manganese…
4 years ago