Which one of the following statements is correct? Azotobacter
Which one of the following statements is correct ? Options (a) Both Azotobacter and Rhizobium fix atomspheric nitrogen in root…
7 years ago
Plant Physiology
Carbohydrates are commonly found as starch in plant storage organs
Carbohydrates are commonly found as starch in plant storage organs. Which of the following five properties of starach (a-e) make…
7 years ago
Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm
Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm and diffusion…
7 years ago
The repture and fractionation do not usually occur in the water column in vessel
The repture and fractionation do not usually occur in the water column in vessel / tracheids during the ascent of…
7 years ago
Read the following four statements (A-D).
Read the following four statements (A-D). Options (a) Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the…
7 years ago
Which one of the following is correctly matched plant nutrients?
Which one of the following is correctly matched about plant nutrients? Options (a) Passive transport of nutrients - ATP (b)…
7 years ago
Which one of the following is wrong statement about nitrogen fixing?
Which one of the following is wrong statement about nitrogen fixing? Options (a) Anabaena and Nostoc are capable of fixing…
7 years ago
Which two distinct mictobial processes are responsible for the release of fixed nitrogen
Which two distinct mictobial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N) to the atmosphere?…
7 years ago
Nitrifying bacteria:
Nitrifying bacteria: Options (a) Oxidize ammonia to nitrates (b) convert free nitrogen to nitrogen compounds (c) convert proteins into ammonia…
7 years ago
Guard cells help in:
Guard cells help in: Options (a) transpiration (b) guttation (c) fighting against infection (d) protection against grazing Correct Answer: transpirationExplanation:Guard…
7 years ago