d) Differentiate between the following pairs:
i Alernate and opposite phyllotaxy.
ii) Self and Cross pollination.
iii) Testa and Tegmen
iv) Chloroplast and chlorophyll
V) Salivary amylase and pancreatic amylase.
Answers
Answer:
1.Alternate phyllotaxy-In alternate-leaved plants, the leaves are single at each node and borne along the stem alternately in an ascending spiral.
Opposite phyllotaxy-In opposite-leaved plants, the leaves are paired at a node and borne opposite to each other.
2.Self pollination-Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.
Cross pollination-Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species
3.Testa-Testa: The seed is protected by a thick outermost coat called the testa or seed coat.
Tegmen-: Under the testa lies a very thin membrane called the tegmen.
4.Chlorophyll-chlorophyll absorbs red and blue light from the sun converting it into chemical energy
chloroplast-chloroplast is a part where photosynthesis takes place
5.Salivary amylase-Salivary amylase is an enzyme that acts on the raw form of carbohydrates, starch. This enzyme is produced in the salivary glands
Pancreatic amylase-Pancreatic amylases act more on complex carbohydrates which take longer to dissolve.
Explanation:
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