Question

Explain the following terms:
1) Phosphorylation
ii) Tropism
ii) Tubular secretion
iv) Osmoregulation
v) Reflex action​

Answer 1

Answer:

sudden response to the stimulus is called reflex action

Answer 2

Explanation:

i) Phosphorylation : In the chemical addition of a phosphoryle group (PO-³) to an organic molecule phosphorylation carried out by enzymes.

ii) Tropism : The turning of all part of an organism in a particular direction in response to an external stimuli.

iii) Tubular secretion:

is the transfer of materials from peritubular capillaries to the renal tubular lumen and occur mainly by active transport and passive diffusion.

iv) Osmoregulation: the maintenance of constant osmotic pressure in the fluids of an organism by the control of water and salt concentrations.

v) Reflex action: It is an involuntary and nearly instantaneous movement in response to stimulus.