ICSE biology
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Question
Mention one significant difference between each of the following :
Calyptra and Calyptrogen
Solution
| Calyptra | Calyptrogen |
| Calyptra is a hood or cap found partially covering the apex of the capsule of the sporophyte in many moss species, formed from the expanded wall and neck of archegonium. | The region within the root apical meristem that divides to produce the root cap. |
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Question
Mention one significant difference between each of the following :
Diffusion and Osmosis
Solution
| Diffusion | Osmosis |
| No Semi-permeable membrane is required. | Semi-permeable membrane is required. |
Question
Mention one significant difference between each of the following :
Holocrine and Apocrine glands
Solution
| Holocrine Gland | Apocrine Gland |
| When the entire cell gets filled with the secretion and breaks down to liberate secretion, it is called holocrine gland. | When the secretory products are collected in the apical part of gland cells which breaks off releasing the secretion, it is called Apocrine gland. |
Question
Mention one significant difference between each of the following :
Fertilisation and Insemination
Solution
| Fertilisation | Insemination |
| The fusion of haploid male gamete (sperm) and female gamete (egg) to form zygote is called fertilisation. | The discharge of semen in the vagina during copulation is known as insemination. |
Question
Mention one significant difference between each of the following :
Xerophthalmia and Night blindness
Solution
| Xerolphthalmia | Night blindness |
| Xerophthalmia is a skin disorder due to deficiency of vitamin A. | Night blindness is an eye disorder due to deficiency of vitamin A. |
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Mock Test Series
Mock Test Series