manganese is required in:
Options
(a) Plant cell wall formation (b) photolysis of water during photosynthesis (c) chlorophyll synthesis (d) nucleic acid synthesis
Correct Answer:
photolysis of water during photosynthesis
Explanation:
Manganese is […]
Guttation is the result of:
Options
(a) diffusion (b) transpiration (c) osmosis (d) root pressure
Correct Answer:
root pressure
Explanation:
The main cause of guttation in plants is root pressure. During night when […]
For its action, nitrogenase requires
Options
(a) Mn²⁺ (b) light (c) high input of energy (d) super oxygen radicals
Correct Answer:
high input of energy
Explanation:
Nitrogenases are enzymes used by some organisms […]
For its activity, carboxypertidase requires
Options
(a) zinc (b) iron (c) niacin (d) copper
Correct Answer:
zinc
Explanation:
Carboxypeptidase is an exopeptidase enzyme secreted by the pancreas that acts only on the peptide […]
Which one of the following is not a micronutrient?
Options
(a) Molybdenum (b) Magnesium (c) Zinc (d) Boron
Correct Answer:
Magnesium
Explanation:
magnesium is a macronutrient. Micronutrients are essent5ial elements that are arquired […]
Which one the following is a symbiotic nitroger fixer?
Options
(a) Azotobacter (b) Frankia (c) Azolla (d) Glomus
Correct Answer:
Frankia
Explanation:
Frankia is symbiotic nitrogen dicer in root nodules of serveral non-legume […]
One of the free-living, anaerobic nitrogen – fixer is:
Options
(a) Beijiernickia (b) Rhodospirillum (c) Rhizobium (d) Azotobacter
Correct Answer:
Rhodospirillum
Explanation:
Rhodospirillum is a free-living, anaerobic nitrogen fixer bacteria. It can synthesize […]
Best defined function of Manganese is green plants is:
Options
(a) photolysis of water (b) Calvin cycle (c) Nitrogen fixation (d) Water absorption
Correct Answer:
photolysis of water
Explanation:
The best defined function […]
An element playing important role in nitrogen fixation is:
Options
(a) Molybdenum (b) Copper (c) Manganese (d) Zinc
Correct Answer:
Molybdenum
Explanation:
Molybdenum is a micronutrient that plays an important role in nitrogen […]
Which of the following elements is a constituent of biotin?
Options
(a) Sulphur (b) Magnesium (c) Cacium (d) Phosphorus
Correct Answer:
Sulphur
Explanation:
Biotin, also known as vitamin H, is a water-soluble B-vitamin. […]
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