Question answer
1.name the things that Green Leaves need to carry out photosynthesis
2. what are green plants .what gives them the green colour ?
3. how do leaves get the various things they need for photosynthesis ?
4. what are stomata? how do they help plants ?
5. how would you show the presence of starch in potato ?
6. with the help of an example,described how plants and animals are dependent on each other ?
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Answers
Answer:
1. chloroplasts, light, water and carbon dioxide.
2. chlorophyll is the pigment given to plants
3. To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
4.a stoma is a tiny pore in the surface of a leaf that is used for gas exchange. ... Stomata are crucial for a plant's life functions because they allow carbon-containing carbon dioxide gas to enter the plant's tissues.
5. The colour of potato slice changes into dark blue-black colour on addition of iodine solution. Appearence of dark blue-black colour shows the presence of starch in potato slice.
6.Plants and animals depend upon each other as mutual interdependence is must for their survival. Plants provide shelter for animals and they make oxygen for the animals to live. When animals die they decompose and become natural fertilizer plants. Plants depend on animals for nutrients, pollination and seed dispersal.
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