CBSE  /  Class 11  /  Biology  /  Digestion and Absorption

  • 1. 
    Which part of brain causes nausea?

  • Pons
  • Hypothalamus
  • Parietal lobe
  • Medulla

  • 2. 
    Correct enzyme-substrate pair is

  • Maltose-lactase
  • Protein-amylase
  • Carbohydrate-lipase
  • Casein-rennin

  • 3. 
    Peyers patches found in the small intestine are

  • Epithelial tissue
  • Glandular tissue
  • Lymphatic tissue
  • Haemopoietic tissue

  • 4. 
    During prolonged fasting, in what sequence are the following organic compounds used up by the body?

  • First carbohydrates, next proteins and lastly lipids
  • First carbohydrates, next fats and lastly proteins
  • First fats, next carbohydrates and lastly proteins
  • First proteins next lipids and lastly carbohydrates

  • 5. 
    In glycolysis ultimately

  • starch is converted into glucose
  • glucose is converted into fructose
  • protein is converted into glucose
  • glucose is converted into pyruric acid

  • 6. 
    If for some reason our goblet cells are non-functional this will adversely affect

  • Smooth movement of food down the intestine
  • Production of somatostatin
  • Secretion of sebum from the sebaceous glands
  • Maturation of sperms

  • 7. 
    The HCl in gastric juice converts:

  • Disaccharide to monosaccharide
  • Pepsinogen to pepsin
  • Prorennin to rennin
  • Polypeptide to peptide

  • 8. 
    Which enzyme is used in alcoholic fermentation of yeast?

  • Maltase
  • Invertase
  • Sucrase
  • Zymase

  • 9. 
    Assimilation means

  • utilising the water taken by body
  • accumulating the food for digestion
  • utilisation of absorbed substances
  • collecting wastes left after the absorption of required nutrients

  • 10. 
    The pH scale is used to measure

  • Electric charge on ion
  • Speed with which ions form
  • Size of ions
  • Concentration of hydrogen ions in a solution
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