Dietary Fibre: Practice Questions

• a.

  Wholemeal bread

• b.

  Chicken breast

• c.

  White sugar

• d.

  Skimmed milk

• a.

  It stimulates the pancreas to secrete digestive proteases to break down excess sugars.

• b.

  It dissolves in water to form a viscous gel that slows gastric emptying and the intestinal absorption of glucose.

• c.

  It speeds up peristalsis rapidly so carbohydrates pass unabsorbed through the small intestine.

• d.

  It directly breaks down circulating glucose into glycogen within the intestinal lumen.

• a.It neutralizes the effect of simple sugars in the small intestine.
• b.It increases the production of insulin in the pancreas.
• c.It slows down the digestion and absorption of glucose into the bloodstream.
• d.It provides the body with a slow-releasing source of complex starch.

• a.

  Acting as a primary catalyst for enzymatic reactions

• b.

  Adding bulk to faeces and stimulating peristalsis to prevent constipation

• c.

  Repairing damaged muscle tissues in the gut

• d.

  Providing a concentrated source of long-term energy

• a.

  It acts as a chemical catalyst to speed up the digestion of high biological value (HBV) proteins.

• b.

  It binds with fat-soluble vitamins to assist their absorption into the bloodstream.

• c.

  It is broken down into glucose by digestive enzymes to provide a quick source of energy.

• d.

  It absorbs water and adds bulk to the faeces, which stimulates peristalsis to move waste through the digestive tract.

Write your answer out first, then check it against the worked solution.

Write your answer out first, then check it against the worked solution.