ICSE biology
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Mention one significant difference between each of the following:
Parenchyma and Sclerenchyma.
| Parenchyma | Scherenchyma |
| Characterised by the presence of uniformly thin primary cell wall and lack of secondary cell wall. | Characterised by the presence of thick secondary cell wall just inside their primary cell wall. |
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Mention one significant difference between each of the following:
Epistasis and dominance.
| Epistasis | Dominance |
| Interaction between pair of non-allelic genes. | Interaction between a pair of alleles. |
Mention one significant difference between each of the following:
Hormones of ovulatory phase and hormones of luteal phase.
| Ovulatory Phase | Luteal Phase |
|
Luteinising hormone/FSH/Estrogen |
Progesterone/ LH |
Mention one significant difference between each of the following:
Symplastic movement and apoplastic movement.
| Symplastic movement | Apoplastic movement |
|
Water enters living cells either in the area of root hair cells or endodermis, there is some resistance to movement of water. The movement requires ATP. |
Consists of non-living parts, i.e. cell walls and intercellular spaces, the water does not enter the living cells. ATP is not required for the movement. |
Mention one significant difference between each of the following:
Phenotype and Genotype.
| Phenotype | Genotype |
|
Morphological expression/External |
Genetic constitution of organisms. |
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Mock Test Series
Mock Test Series