Which of the following structures controls the transport of the material into and out of living cell?
A.Centrosome
B.Cell membrane
C.Cell wall
D.Ribosome
Category: Agriculture Plant Physiology Mcqs
The amount of carbon dioxide has increased slowly since about 1850 from 28
A.310
B.320
C.330
D.340
Exogenous application of Gibberellins induces male flowers formation on genetically female plants in:
A.Cucumis
B.Cucurbita
C.Carica
D.Coccinia
Process of transpiration in plants helps in:
A.Absorption of CO2
B.Upward conduction
C.Opening of stomata
D.None of these
Plasmolysis will occur when the cell is placed in a:
A.Acidic solution
B.Isotonic solution
C.Hypotonic solution
D.Hypertonic solution
D.P.D. stands for:
A.Diffusion pressure deficit
B.Diffusion pressure deficit
C.Daily phosphate demand
D.Daily photosynthetic depression
What determines the diffusion of water accumulation of sugars?
A.CO2 accumulates, reduces pH, stimulates enzymes resulting in accumulation of sugars
B.Increase in CO2 concentration, conversion of organic acids into starch resulting in the increased uptake of potassium ions and water
C.Low CO2 concentration, accumulation of organic acids resulting in the increased concentration of cell sap
D.None of the above
Peptide linkages are formed among:
A.Amino acid
B.Glucose molecules
C.Sucrose molecules
D.Glycerol molecules
