Carbohydrates MCQ Quiz - Objective Question with Answer for Carbohydrates - Download Free PDF

Carbohydrates are present in the muscles in the form of __________.

1. amylopectin
2. amylose
3. collagen
4. glycogen

Answer (Detailed Solution Below)

Carbohydrates Question 1 Detailed Solution

The correct answer is glycogen. Key Points

• Carbohydrates are the primary source of energy for the body, and they are stored in the form of glycogen.
• Glycogen is a complex carbohydrate that is made up of many glucose molecules linked together in a highly branched structure.
• Glycogen is the main storage form of glucose in the body, and it is broken down into glucose when the body needs energy.
• Most glycogen in humans is stored in the liver and skeletal muscles.

• Amylopectin is a highly branched polysaccharide that is found in plants, particularly in starchy foods like potatoes, corn, and rice.
  • It is a type of complex carbohydrate that is broken down into glucose for energy.
• Amylose is also a polysaccharide found in plants, but it is a linear chain of glucose molecules rather than a branched structure like amylopectin.
  • It is also broken down into glucose for energy.
• Collagen is a fibrous protein that provides strength and elasticity to tissues in the body.
  • It is the most abundant protein in the body and is found in skin, bones, tendons, ligaments, and cartilage.
  • It is not a carbohydrate and is not used for energy.

Carbohydrates Question 2:

Which of the following combination(s) is/are correct? I. Potato - Simple Carbohydrate II. Honey - Simple Carbohydrate III. Maize - Complex Carbohydrate IV. Legumes - Complex Carbohydrates

1. II, III and IV
2. I, III and IV
3. I, II and III
4. I, II, III and IV
5. Not Attempted

Answer (Detailed Solution Below)

Carbohydrates Question 2 Detailed Solution

Concept:

Carbohydrate:

• Carbohydrates are primarily produced by plants and form a very large group of naturally occurring organic compounds.
• Some common examples of carbohydrates are cane sugar, glucose, starch, etc.

Explanation:

Simple carbohydrate:

• Monosaccharides and disaccharides are examples of simple carbohydrates.
• Monosaccharides:
  • ​A carbohydrate that cannot be hydrolysed further to give a simpler unit of polyhydroxy aldehyde or ketone is called a monosaccharide.
  • About 20 monosaccharides are known to occur in nature.
  • Some common examples are glucose, fructose, ribose, etc.
  • When two monosaccharides (simple sugars) are linked together by glycosidic linkage, a disaccharide (also known as a double sugar) is created.

  Complex Carbohydrate:

  • Long, intricate sequences of three or more monosaccharide units make up complex carbohydrates.
  • They are high in fibre and the body digests them gradually.
  • Complex carbs include foods like peas, beans, and whole grains.

  Thus, combinations

  I. Potato - Simple Carbohydrate - correct

  II. Honey - Simple Carbohydrate - correct

  III. Maize - Complex Carbohydrate - correct

  IV. Legumes - Complex Carbohydrates - correct.

  

  Additional Information Protein:

  • Chief sources of proteins are milk, cheese, pulses, peanuts, fish, meat, etc.
  • They occur in every part of the body and form the fundamental basis of the structure and functions of life.

  Lipid:

  • Lipids are a group of organic compounds found in living organisms.
  • They vary in their structures and functions, because of their hydrophobic and non-polar nature, lipids are soluble in organic solvents.
  • Lipids are primarily made up of hydrocarbon chains connected to glycerol via an ester linkage.
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  Carbohydrates Question 3:

  Which of the following combination(s) is/are correct? I. Potato - Simple Carbohydrate II. Honey - Simple Carbohydrate III. Maize - Complex Carbohydrate IV. Legumes - Complex Carbohydrates

  1. II, III and IV
  2. I, III and IV
  3. I, II and III
  4. I, II, III and IV

  Answer (Detailed Solution Below)

  Option 4 : I, II, III and IV

  Carbohydrates Question 3 Detailed Solution

  Concept:

  Carbohydrate:

  • Carbohydrates are primarily produced by plants and form a very large group of naturally occurring organic compounds.
  • Some common examples of carbohydrates are cane sugar, glucose, starch, etc.

  Explanation:

  Simple carbohydrate:

  • Monosaccharides and disaccharides are examples of simple carbohydrates.
  • Monosaccharides:
    • ​A carbohydrate that cannot be hydrolysed further to give a simpler unit of polyhydroxy aldehyde or ketone is called a monosaccharide.
    • About 20 monosaccharides are known to occur in nature.
    • Some common examples are glucose, fructose, ribose, etc.
    • When two monosaccharides (simple sugars) are linked together by glycosidic linkage, a disaccharide (also known as a double sugar) is created.

    Complex Carbohydrate:

    • Long, intricate sequences of three or more monosaccharide units make up complex carbohydrates.
    • They are high in fibre and the body digests them gradually.
    • Complex carbs include foods like peas, beans, and whole grains.

    Thus, combinations

    I. Potato - Simple Carbohydrate - correct

    II. Honey - Simple Carbohydrate - correct

    III. Maize - Complex Carbohydrate - correct

    IV. Legumes - Complex Carbohydrates - correct.

    

    Additional Information Protein:

    • Chief sources of proteins are milk, cheese, pulses, peanuts, fish, meat, etc.
    • They occur in every part of the body and form the fundamental basis of the structure and functions of life.

    Lipid:

    • Lipids are a group of organic compounds found in living organisms.
    • They vary in their structures and functions, because of their hydrophobic and non-polar nature, lipids are soluble in organic solvents.
    • Lipids are primarily made up of hydrocarbon chains connected to glycerol via an ester linkage.
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    Carbohydrates Question 4:

    Maltose is an oligosaccharide, made up of two monosaccharides, which are
    1. Glucose and fructose
    2. Fructose and fructose
    3. Glucose and glucose
    4. Galactose and glucose

    Answer (Detailed Solution Below)

    Option 3 : Glucose and glucose

    Carbohydrates Question 4 Detailed Solution

    Concept:

    • Monosaccharides are a group of carbohydrates that cannot be hydrolyzed into a simpler form.
    • The chemical formula of monosaccharides is (CH₂O)_n.
    • Glyceraldehyde and dihydroxyacetone are the simplest monosaccharides.
    • Monosaccharides are divided into different sub-groups based on the number of carbon atoms they possess.
      • Trioses - E.g.: Glyceraldehyde
      • Tetroses - E.g.: Erythrose
      • Pentoses - E.g.: Ribose
      • Hexoses - E.g.: Glucose

      

      Important Points

      Glucose and glucose -

      • ​Glucose is a hexose class of monosaccharides.
      • Maltose is a disaccharide that is made up of 2molecules of glucose.
      • A maltose molecule contains two D-glucose residues in α-1,4 glycosidic linkage.

      

      

      Additional Information

      • Glucose and fructose -
        • ​Glucose and fructose are monosaccharides.
        • Sucrose is a disaccharide (oligosaccharide) made up of glucose and fructose.
        • Sucrose is also known as cane sugar.
        • ​Fructose is a monosaccharide that occurs naturally in fruits and honey.
        • There is no such disaccharide that is made up of two molecules of fructose.
        • ​Galactose and glucose are both hexoses that contain six carbon atoms in their structure.
        • Lactose is a disaccharide that is made up of a molecule of glucose and a molecule of galactose.
        • Lactose is found naturally in milk.

        So the correct answer is option 3 ( Glucose and glucose).

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        Top Carbohydrates MCQ Objective Questions

        Carbohydrates Question 5

        Carbohydrates are present in the muscles in the form of __________.
        1. amylopectin
        2. amylose
        3. collagen
        4. glycogen

        Answer (Detailed Solution Below)

        Option 4 : glycogen

        Carbohydrates Question 5 Detailed Solution

        

        The correct answer is glycogen. Key Points

        

        • Carbohydrates are the primary source of energy for the body, and they are stored in the form of glycogen.
        • Glycogen is a complex carbohydrate that is made up of many glucose molecules linked together in a highly branched structure.
        • Glycogen is the main storage form of glucose in the body, and it is broken down into glucose when the body needs energy.
        • Most glycogen in humans is stored in the liver and skeletal muscles.
        Additional Information
        • Amylopectin is a highly branched polysaccharide that is found in plants, particularly in starchy foods like potatoes, corn, and rice.
          • It is a type of complex carbohydrate that is broken down into glucose for energy.
        • Amylose is also a polysaccharide found in plants, but it is a linear chain of glucose molecules rather than a branched structure like amylopectin.
          • It is also broken down into glucose for energy.
        • Collagen is a fibrous protein that provides strength and elasticity to tissues in the body.
          • It is the most abundant protein in the body and is found in skin, bones, tendons, ligaments, and cartilage.
          • It is not a carbohydrate and is not used for energy.