ICSE Class 10 Biology
Question 2 of 12
Solved 2014 Question Paper ICSE Class 10 Biology — Question 1
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Question Question 2(a)
Differentiate between the following pairs on the basis of what is mentioned within brackets: [5]
(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)
(i) Difference between Spinal nerves and Cranial nerves (number of nerves)
| Spinal nerves | Cranial nerves |
|---|---|
| Spinal nerves are composed of 31 nerve pairs | Cranial nerves are composed of 12 nerve pairs. |
(ii) Difference between near vision and Distant vision (shape of the eye lens)
| Near vision | Distant vision |
|---|---|
| In near vision, the lens is too curved. | In distant vision, the lens is too flat. |
(iii) Difference between Corpus callosum and Corpus luteum (function)
| Corpus callosum | Corpus luteum |
|---|---|
| Connect the left and right cerebral hemispheres. | Secrete female sex hormones Oestrogen and Progesterone. |
(iv) Difference between Turgor pressure and Wall pressure (explain)
| Turgor pressure | Wall pressure |
|---|---|
| The pressure of cell contents on the cell wall is called Turgor pressure. | The pressure exerted by the cell wall on the cell content is called Wall pressure. |
(v) Difference between Disinfectant and Antiseptic (definition)
| Disinfectant | Antiseptic |
|---|---|
| These are strong chemical substances that are applied on spots and places where germs thrive and multiply. | These are mild chemical substances which, when applied on the body, kill germs. These substances cause no harm to the skin and body. |