Question

Why do plant cells need energy?

Answer 1

HEYA, BUDDY !!

: $\implies$ The Plant cells are autotrophs that can prepare their own food by the process of photosynthesis. The chlorophyll is the important molecule that is necessary for photosynthesis. The sunlight is trapped by the chlorophyll and further carbon dioxide and water are utilised to produce energy in the form of glucose.

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• Chloroplast- The chloroplasts are the organelles that contain chlorophyll. The chlorophyll is the important molecule that is necessary for photosynthesis. The sunlight is trapped by the chlorophyll and further carbon dioxide and water are utilised to produce energy in the form of glucose. The oxygen is generated as a by-product of photosynthesis along glucose is further processed in the mitochondria.

• ii) Mitochondria- It is known as the powerhouse of the cell and the site of cellular respiration. The oxygen released by the chloroplast during the process of photosynthesis is utilised in the mitochondria to release energy by the oxidation of glucose. The energy produced by the mitochondria is in the form of ATP.

Answer 2

Answer:

Plant cells obtain energy through a process called photosynthesis. ... Secondly, that energy is used to break down carbon dioxide and form glucose, the main energy molecule in plants. Plants, algae and some bacteria use photosynthesis to create energy used for growth, maintenance and reproduction.