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AP Intermediate 2nd Year Amines and Biomolecules — practice questions — page 3

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 61–90 of 197.

Glucose oxidised by bromine water yields:Read the answer and worked solution →Oxidation of glucose with nitric acid gives:Read the answer and worked solution →Glucose pentaacetate shows that glucose carries how many hydroxyls?Read the answer and worked solution →Commercial glucose is obtained by hydrolysing starch at:Read the answer and worked solution →The carbon whose hydroxyl decides alpha or beta glucose is called:Read the answer and worked solution →The six membered ring form of glucose is called the:Read the answer and worked solution →Fructose is best described as a:Read the answer and worked solution →The five membered ring form of fructose is called the: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 →Lactose, the sugar of milk, is built from glucose and:Read the answer and worked solution →The water soluble component of starch is:Read the answer and worked solution →Amylopectin makes up roughly what share of starch?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 →All proteins are polymers of which kind of amino acid?Read the answer and worked solution →The word protein comes from a Greek word meaning:Read the answer and worked solution →Amino acids the body cannot make and must eat are called:Read the answer and worked solution →The dipolar ion form of an amino acid is called a:Read the answer and worked solution →Which amino acid is not optically active?Read the answer and worked solution →Most naturally occurring amino acids carry which configuration?Read the answer and worked solution →The bond joining two amino acids in a protein is a:Read the answer and worked solution →A chain of more than ten amino acids is called a:Read the answer and worked solution →Keratin and myosin are examples of which class of protein?Read the answer and worked solution →Insulin and albumin are examples of which class of protein?Read the answer and worked solution →The sequence of amino acids in a chain is its:Read 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 →

Worked practice questions

Glucose oxidised by bromine water yields:

  1. Glyceric acid
  2. Glycolic acid
  3. Gluconic acid
  4. Glutamic acid
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Correct answer: C. Gluconic acid

1. Bromine water is a mild oxidising agent. 2. It attacks only an aldehyde group. 3. The six carbon acid formed is gluconic acid. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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Oxidation of glucose with nitric acid gives:

  1. Salicylic acid
  2. Succinic acid
  3. Sorbic acid
  4. Saccharic acid
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Correct answer: D. Saccharic acid

1. Nitric acid is the stronger oxidant here. 2. It oxidises the primary alcohol group as well. 3. The dicarboxylic product is saccharic acid. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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Glucose pentaacetate shows that glucose carries how many hydroxyls?

  1. Five
  2. Nine
  3. Four
  4. Seven
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Correct answer: A. Five

1. Acetic anhydride acetylates every free hydroxyl. 2. The product carries five acetyl groups. 3. So glucose has five hydroxyl groups. _Source: syllabus Chemistry Part 2, Unit 10 'Biomolecules'_

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