Question

Differentiate between the following pairs on the basis of what is mentioned within brackets
(i) Spinal nerves and Cranial nerves (Number of nerves)
(ii) Near vision and Distant Vision (shape of the eye lens)
(iii) Corpus callosum and Corpus luteum. (function).
(iv) Turgor pressure and wall pressure. (Explain).
(v) Disinfectant and Antiseptic (Definition).

Answer 1

(i) Spinal nerves have 31 pairs whereas cranial nerves have 12 pairs.
(ii) During near vision, the lens is more convex/too curved. During the distant vision, the less is less convex/too flat.
(iii) Corpus callosum connects the left and right cerebral hemispheres.
Corpus luteum secretes female sex hormones oesterogen and progesterone.
(iv) Turgor pressure is the pressure exerted by cell contents of a turgid cell on the cell, wall.
Wall pressure is the pressure exerted by the wall of a turgid cell on the cell contents.
(v) Disinfectant is chemical of strong concentration applied on spots and areas to kill germs.
Antiseptic is chemical of mild concentration applied on the body to kill germs.