Biological catalysts in living organisms are known as
hormones
vitamins
steroids
enzymes
D.
enzymes
Enzymes are biological catalysts that increase the rate of a reaction without altering its structure.
A man with dark skin, in comparison with a man with white skin, will experience
less heat and less cold.
less heat and more cold
more heat and less cold.
more heat and more cold.
Which one among the following statements regarding cell is not correct?
Shape and size of cells are related to specific function
Some cells have changing shapes
Each cell has its own capacity to perform
Same type of cells are present in all body tissues
Among the following elements, which one is essential for the transmission of impulses in the nerve fiber?
Calcium
Iron
Sodium
Zinc
Which one among the following Indian scientists proposed a theory for long-distance transport of water in plants?
J.C. Bose
Birbal Sahrii
P. Maheshwari
N.S. Parihar
The cure to spinal injury is likely to emerge from
gene therapy
steam cell therapy
xenograft
transfusion