Food and Digestion (Year 8)

(1)Which part of a healthy diet is only needed in small amounts?
Vitamins and minerals.
Carbohydrates.
Proteins.
Fibre.
(2)Proteins are needed in a healthy diet for....
energy and insulating the body.
for storing as fat.
for string bones and teeth.
for growth of new cells and to repair damaged tissue.
(3)Iodine solution + starch = ?, Benedicts solution + glucose = ?
brown, orange.
black, blue
black, orange.
brown, blue.
(4)In teeth, the enamel is....
the hard outer layer.
the living soft part of the tooth.
where the nerves and blood vessels are found.
the cement that glues the teeth in gums.
(5)Which statement about enzymes is true?
Enzymes make small molecules join up to form big molecules.
Enzymes are like chemical scissors which break down large molecules.
Enzymes are not needed for the process of digestion.
Enzymes are used for carbohydrates but not for proteins or fats.
(6)The correct pairing of a large molecule and its digested product....
Proteins -> fatty acids.
Starch -> glucose.
Fats -> amino acids.
Glucose -> proteins.
(7)Where in the digestive system is most food absorbed?
Mouth.
Stomach.
Small intestine.
Anus.
(8)Where in the digestive system is saliva produced?
Mouth.
Stomach.
Small intestine.
Anus.
(9)Where in the digestive system is it very acidic?
Mouth.
Stomach.
Small intestine.
Anus.
(10)In a Visking tubing model of the gut, starch stays in the tube because...
it is too small and cannot find a way out.
the glucose blocks all the holes so no molecules can move.
the water pushes all the starch and glucose back in.
it is too large and must be digested before passing throught the 'gut' wall.

     

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