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AP Intermediate 2nd Year Amines and Biomolecules — practice questions — page 4

Explore 197 free Amines and Biomolecules questions in AP Intermediate 2nd Year Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Amines and Biomolecules questions and exercises with answers

Showing questions 91–120 of 197.

On denaturation a protein loses which structures?Read the answer and worked solution →The coagulation of egg white on boiling is an example of:Read the answer and worked solution →Almost all enzymes are which kind of protein?Read the answer and worked solution →The name of an enzyme almost always ends in:Read the answer and worked solution →Enzymes speed a reaction by lowering its:Read the answer and worked solution →Which set of vitamins is fat soluble?Read the answer and worked solution →Water soluble vitamins must be eaten regularly because they are:Read the answer and worked solution →The sugar found in a DNA molecule is:Read the answer and worked solution →Which base occurs in RNA but not in DNA?Read the answer and worked solution →A base attached to a sugar without phosphate is called a:Read the answer and worked solution →Nucleotides in a chain are joined by which linkage?Read the answer and worked solution →In the DNA double helix adenine pairs with:Read the answer and worked solution →Aniline heated with sulphuric acid finally yields:Read the answer and worked solution →The chief drawback of ammonolysis is that it yields a:Read the answer and worked solution →In ammonolysis the order of reactivity of alkyl halides is:Read the answer and worked solution →NEET · Chemistry · Carbohydrate FamilyRead the answer and worked solution →The alpha helix and the beta pleated sheet belong to which level?Read the answer and worked solution →The arrangement of sub-units in a protein is its:Read the answer and worked solution →The name of an enzyme almost always ends in:Read the answer and worked solution →Water soluble vitamins must be eaten regularly because they are:Read the answer and worked solution →The coagulation of egg white on boiling is an example of:Read the answer and worked solution →The sequence of amino acids in a chain is its:Read the answer and worked solution →Two monosaccharides joined through an oxygen atom share a:Read the answer and worked solution →Sucrose is a non reducing sugar because both its:Read the answer and worked solution →The laevorotatory mixture left after hydrolysing sucrose is called:Read the answer and worked solution →Maltose on hydrolysis gives two units of:Read the answer and worked solution →Cellulose is a straight chain polymer built only from:Read the answer and worked solution →Carbohydrate is stored in the animal body as:Read the answer and worked solution →Lactose, the sugar of milk, is built from glucose and:Read the answer and worked solution →The word protein comes from a Greek word meaning:Read the answer and worked solution →

Worked practice questions

On denaturation a protein loses which structures?

  1. Second and third
  2. First and third
  3. First and second
  4. First and fourth
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Correct answer: A. Second and third

1. Heat or a pH change breaks the hydrogen bonds. 2. The helix uncoils and the globule unfolds. 3. Secondary and tertiary go, but primary survives. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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The coagulation of egg white on boiling is an example of:

  1. Decarbonation
  2. Denaturation
  3. Detoxication
  4. Dehydration
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Correct answer: B. Denaturation

1. Heat disturbs the hydrogen bonds in the protein. 2. The protein loses its biological activity. 3. This change is denaturation. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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Almost all enzymes are which kind of protein?

  1. Glandular
  2. Glacial
  3. Globular
  4. Granular
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Correct answer: C. Globular

1. Enzymes are the biocatalysts of the living cell. 2. They work in solution under mild conditions. 3. Almost all of them are globular proteins. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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