Biology - Mock Test 118

Question 1171

Chitin is a ?

A) Polysaccharide B) Nitrogenous polysaccharide C) Lipoprotein D) Protein

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Question 1172

Which of the following is not a conjugated protein?

A) Peptone B) Phosphoprotein C) Lipoprotein D) Chromoprotein

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Question 1173

Example of a typical homopolysaccharide is ?

A) Lignin B) Suberin C) Inulin D) Starch

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Question 1174

Feedback inhibition of enzymes is affected by which of the following ?

A) enzyme B) substrate C) end products D) intermediate end products

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Question 1175

With reference to enzymes, which one of the following statements is true?

A) Apoenzyme = Holoenzyme + Coenzyme B) Holoenzyme = Apoenzyme + Coenzyme C) Coenzyme = Apoenzyme + Holoenzyme D) Holoenzyme = Coenzyme – Apoenzyme

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Question 1176

One strand of DNA has the following sequence of nucleotide 3’ ATTCGCTAT 5’ so the other strand of DNA has ?

A) 5’ TAAGCGATA 3’ B) 3’ TAAGCGATA 5’ C) 5’ GACGCGATA 3’ D) 3’ GACGCGATA 5’

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Question 1177

The ‘‘lock and key’’ model of enzyme action illustrates that a particular enzyme molecule ?

A) May be destroyed and resynthesised several times B) Interacts with a specific type of substrate molecule C) Reacts at identical rates under all conditions D) Forms a permanent enzyme-substrate complex

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Question 1178

Which one of the following statements is true with reference to enzymes?

A) Apoenzyme = Holoenzyme + Coenzyme B) Holoenzyme = Apoenzyme + Coenzyme C) Coenzyme = Apoenzyme + Holoenzyme D) Holoenzyme = Coenzyme – Apoenzyme

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Question 1179

Which one of the following pairs is wrongly matched?

A) Textile - amylase B) Detergents - lipase C) Alcohol - nitrogenase D) Fruit juice - pectinase

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Question 1180

Which one of the following is resistant to enzyme action?

A) Leaf cuticle B) Cork C) Wood fibre D) Pollen exine

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