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Answer:
2) Nutrition is the process of taking food and water and using them to obtain energy and for purpose of growth.
Sorry I wish I could answer all the questions. But, I know only that much.
Answer:
1)Carbohydrates, Proteins, fats, vitamins and minerals
2) Nutrition is the process of taking food and water and using them to obtain energy and for purpose of growth.
3) All plants and animals require food for their growth and getting energy.
4)Autotrophs are organisms that are able to produce food on their own. The organisms are capable of preparing their own food using simple substances that are available in their surroundings. Plants are an example of autotrophs.
5)Heterotrophs are organisms that completely depend on others for their nutrition. They depend on surrounding plants and animals for food. Animals like humans are an example of heterotrophs.
6)Saprotrophs are organisms that feed on or derive nourishment from decaying organic matter.
7) Carbon dioxide in the atmosphere enters the plant leaf through stomata. Water enters the leaves, primarily through the roots. As sunlight falls on the leaf surface, the chlorophyll present in the plant leaf traps the energy in it. Then hydrogen and oxygen are produced by converting water using the energy derived from the Sun. Hydrogen is combined with carbon dioxide in order to make food for the plant, while oxygen is released through the stomata.
8)Factors affecting the rate of photosynthesis: light intensity, carbon dioxide, temperature, and water.
9) Chlorophyll is a green pigment present in leaves that helps to trap sunlight for the process of photosynthesis.
10) Stomata are the minute pores in the epidermis of the leaf or stem of a plant, forming a slit of variable width which allows movement of gases in and out of the intercellular spaces.
11) Water is transported in the plants with the help of conductive tissues and individual cells of the vascular system called Xylem.
12) Proteins and fats
13) Plants absorb nitrogen in the form of nitrate and ammonium.
14) Most nutrients are absorbed through root hairs near the very tip of the roots.
15)parasitic plants are plants living on another plant and obtaining organic nutriment from the host. Examples: Dodder plant, mistletoe, yellow rattle
16)Their mode of nutrition is known as the heterotrophic mode of nutrition.
17)Insectivorous plants are the plants that derive their nutrition by feeding on insects and other organisms. Eg. Venus Flytrap, Drosera, pitcher plant.