Hydolytic enzymes comprises of which of the following

(A)lipases

(B)proteases

(C)carbohydrases

(D)All of these

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Hydrolytic enzymes are active at

(A)acidic pH

(B)basic pH

(C)Neutral pH

(D)Both A and B

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How many of the following biomolecules can be digested by lysosomes?

(Carbohydrates, proteins, lipids, nucleic acids)

(A)4

(B)3

(C)2

(D)1

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Which of the following is not true about cell wall

(A)protects cell from mechanical damage

(B)permeable to water

(C)It’s a living structure

(D)absent in animals

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Galactans and mannans are the important component of cell wall of

(A)Plant

(B)Algae

(C)Fungi

(D)Bacteria

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The common component between the cell wall of algae and plants is

(A)cellulose

(B)Hemicellulose

(C)Both A and B

(D)Mannans

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Which of the following cell wall comes early and disappears gradually  in the life of plant?

(A)primary cell wall

(B)secondary cell wall

(C)tertiary cell wall

(D)Both A and B

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Which of the following holds the neighbouring cells together

(A)calcium pectate

(B) sodium pectate

(C)Both A and B

(D)manganese pectate

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Which of the following connects the cell wall of the neighbouring cells?

(A)plasmodesmata

(B)Desmosomes

(C)Gap junction

(D)Tight junction

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How many layers are present in cell envelope of prokaryotes?

(A)4

(B)3

(C)2

(D)1

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