Define the following :
(I) Excretion
(II) Excretory organs
(III) Dialysis
(IV)Nephron
Answers
Answer:
I. Excretion:-
Excretion is a process by which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life.
II. Excretory Organs:-
The excretory system is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes. ... There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system. Every human has two kidneys.
III. Dialysis:-
According to Chemistry
The separation of particles in a liquid on the basis of differences in their ability to pass through a membrane.
According to Medical
The clinical purification of blood by dialysis, as a substitute for the normal function of the kidney.
IV. Nephron:-
Nephron, functional unit of the kidney, the structure that actually produces urine in the process of removing waste and excess substances from the blood. ... nephron of the kidneyEach nephron of the kidney contains blood vessels and a special tubule.