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Worksheetsbreathing ...respiration
Total questions: 13
Worksheet time: 7mins
Which of the following nutrients supply the MOST energy ?
glucose
starch
proteins
lipids
A vegetarian diet
lacks fats and oils which are not produced by plants
gets inferior quality vitamins from plants
requires large qualities of food to supply essential amino acids
requires large quantities of food to supply essential mineral nutrient
The part of the gut into which the bile empties is the
duodenum
caecum
ileum
stomach
Which enzyme is concerned with the breakdown of lipids?
pepsin
amylase
trypsin
lipase
Which enzyme has the ability to work BEST in an acidic pH?
pepsin
amylase
trypsin
lipase
Which of the following organs involved in the digestive system does NOT produce digestive enzymes?
pancreas
stomach
ileum
liver
A food sample is boiled with dilute hydrochloric acid and neutralized. When tested with Benedict's solution, an orange-red colour is produced. This indicates that the food contains...
non-reducing sugar
lipids
proteins
amino acids
The process which moves food through the alimentary canal is called
peristalsis
swallowing
mastication
digestion
Which of the following is essential in the diet of a mammal to develop strong bones and teeth?
vitamin C
vitamin A
Calcium
Iron
In which of the following parts of the alimentary canal is starch MAINLY digested ?
I. Mouth
II. Stomach
III. Small intestine
IV. Large intestine
II only
I and III
I and II
I, II, and IV
Which of the following teeth would be MOST suitable for peeling cane or removing meat from a bone?
Canines
Incisors
Premolars
Molars
A man has poor night vision and his gums bleed whenever he brushes his teeth. He could improve his health by eating more
fish liver oil and eggs
carrots and oranges
brown rice and carrots
milk and fish
The villus of the ileum is BEST adapted to
absorb water from undigested food
help in digestion
increase the surface area for absorption
decrease movement of food
