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  •  Which of the following is a non-living structure in a plant cells?Option: 1 Sieve tubes

 Which of the following is a non-living structure in a plant cells?

Option: 1

Sieve tubes


Option: 2

Xylem parenchyma


Option: 3

Cell wall


Option: 4

Pholem


Answers (1)

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Cellulose is a polymeric carbohydrate that makes up the cell wall. The cell walls' stiffness comes from cellulose. The cell wall's cellulose renders it a non-living component because it has no internal activity and solely serves to protect the protoplasm inside the cell. Hence option 3 is the correct answer.

Option 1 is incorrect because sieve tubes are regarded as live cells in the absence of a nucleus since partner cells' nuclei regulate their functional activities. Sieve-tube members include companion cells, which join with sieve tubes to create the sieve element-companion cell complex.

Option 2 is incorrect because the xylem is primarily made up of dead materials which help in water transport. While carbohydrates and fatty compounds are stored in the xylem parenchyma, a living part of the tissue.

Option 4 is incorrect because living tissue called phloem is in charge of moving food and other organic things.

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Gunjita

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