What are the aquaporins in the facilitated diffusion process? A. Membrane proteins B. Carrier proteins C. Channel proteins D. Carrier lipids
1 Answer What are the possible advantages and disadvantages of a chitinous exoskeleton in arthropods?
1 Answer A dorsiventral leaf has a. Palisade tissue on both sides b. Spongy tissue on both sides c. Palisade tissue on the upper side and spongy tissue on the lower d. Spongy tissue on the upper side and palisade tissue on the lower
1 Answer Accumulation of cells and formation of a bud at the site of amputation is A. Morphallaxis B. Reparative bud C. Blastema D. Both A and B
1 Answer According to the modern theory of stomatal opening proposed by Levitt, the pH of guard cells can rise due to A. CO2 assimilation by guard cells only B. Active efflux of H+ ions by guard cells C. Conversion of starch into PEP D. Active uptake of K+ in guard cells
1 Answer An ecosystem undergoes a sudden drastic change that now favors organisms with an extreme phenotype. Which one of the following is true for such an ecosystem? A. Genetic drift B. Founder effect C. Artificial selection D. Disruptive selection E. Directional selection
1 Answer Abnormal/anomalous secondary growth occurs in (a) Dracaena (b) Ginger (c) Wheat (d) Sunflower
1 Answer According to five kingdom system blue-green algae belong to: a) Metaphyta b) Monera c) Protista d) Algae
1 Answer Adenosine monophosphate is a A) Nucleoside of DNA B) Nucleotide of DNA C) Nucleoside of RNA D) Nucleotide of RNA
1 Answer Active transport of ions by a cell requires A) High temperature B) Low temperature C) Alkaline pH D) ATP
1 Answer
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
Sourav Pan
BNO Team