Q8 of 86 Page 150

Chlorophyll in a leaf is required for __________.

Chlorophyll pigment is present within chloroplasts which traps sunlight energy and by using raw materials carbon dioxide and water, the leaves prepare glucose and release oxygen into the environment. This process is called photosynthesis.

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Dandelion flowers open the petals in bright light during the day time but close the petals in dark at night. This response of Dandelion flowers is called ___________.

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During photosynthesis plants exhale ________.

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A plant is kept in a dark room for about 24 hours before conducting any experiment on photosynthesis in order to _______.

 10

Transpiration takes place through _____________.