1.

Rewrite the sentences after filling the blanks:(i) Cell wall is mainly composed of carbohydrates like ……….. and …………. .(ii) Plasma membrane is said to be a ……………. …………….. membrane as it allows some substances to enter the cell, while prevents other substances.(iii) Homeostasis is maintained in the cell by ………….. .(iv) An …………… is a specialized subunit having specific function within the cell.

Answer»

(i) Cell wall is mainly composed of carbohydrates like cellulose and pectin.

(ii) Plasma membrane is said to be a selectively permeable membrane as it allows some substances to enter the cell, while prevents other substances.

(iii) Homeostasis is maintained in the cell by plasma membrane.

(iv) An organelle is a specialized subunit having specific function within the cell.



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