1) In which form do the green plants stored the prepared food?
2) Why does absorption of digested food occur mainly in the small intestine?
estion 4 - 3 marks
1) Define pollination?
2) What are the two different types of pollination?
3) What is the difference between two types of pollination?
Answers
Answer:
1) (a) Green plants are called autotrophs since they synthesise their own food. (b) The food synthesised by the plants is stored as starch.
2) Absorption of digested food occurs mainly in the small intestine because it consist of many finger-like projections called villi that are supplied with numerous blood vessels. They provide a large surface area for the absorption of food.
3) Pollination takes two forms: self-pollination and cross-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.
4) Pollination is the sexual method of reproducing in all plants by the process of transferring the pollen grains from the anther to the stigma of the gynoecium and thereby permitting the fertilization process.
5 ) Self-Pollination Cross-Pollination
Reduces the gene pool. Maintains the gene pool.
Answer:
- (a) Green plants are called autotrophs since they synthesise their own food. (b) The food synthesised by the plants is stored as starch.
2) After the digestion of food,the absorption of food occurs in small intestine. Reason: ... The presence of Villi gives the inner walls of small intestine greater surface area which helps in rapid absorption of food.
1) Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.
2) Pollination takes two forms: self-pollination and cross-pollination
3) 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 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.
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