Digestive System

Which of the following food types passes through the digestive system without being used up?
1. Fibre
2. Starch
3. Minerals
4. Vitamins
Which of the following is an example of physical digestion?
1. The chewing of food into smaller pieces in the mouth.
2. The changing of starch into maltose in the mouth.
3. The killing of bacteria in food in the stomach.
4. The digestion of food by enzymes in the stomach.
Proteins which speed up chemical reactions in the body are known as
1. enzymes
2. pancreas
3. carbohydrates
4. substrates
The salivary glands are to be found in the
1. mouth
2. large intestine
3. pancreas
4. stomach
Salivary amylase breaks starch down into
1. maltose
2. an enzyme
3. a protein
4. iodine
Name the parts labelled A and B in the diagram of the digestive system shown.
1. A = stomach and B = large intestine
2. A = stomach and B = small intestine
3. A = oesophagus and B = small intestine
4. A = pancreas and B = large intestine
The function of the incisor teeth is
1. to slice or nibble food.
2. to grip and tear food.
3. to grind food.
4. to crush food.
Which type of teeth would you associate with gripping and tearing of food?
1. canines
2. incisors
3. molars
4. premolars
Where in the digestive system does the muscular action called 'peristalsis' take place?
1. the oesophagus
2. the large intestine
3. the mouth
4. the pancreas
Which substance kills bacteria and germs in the stomach?
1. hydrochloric acid
2. amylase
3. starch
4. maltose
In what part of the digestive system does food pass into the bloodstream?
1. the small intestine
2. the large intestine
3. the liver
4. the stomach
Where in the body is bile produced?
1. The liver
2. The kidneys
3. The small intestine
4. The pancreas
What is the function of bile?
1. To help digest fat in the small intestine.
2. To prevent heart-burn.
3. To produce faeces.
4. To prevent constipation.
Which part of the body shown in the diagram is the pancreas?
1. part C
2. part A
3. part B
4. part D
Where in the body is water taken back into the bloodstream, leaving faeces behind?
1. The large intestine
2. The small intestine
3. The anus
4. The liver
The substance upon which an enzyme acts is known as
1. the substrate
2. the solution
3. a protein
4. the oesophagus
Saliva and starch solution are mixed together in a test-tube. A blue/black colour appears. This mixture is allowed stand for about 15 minutes at 37 degrees Celsius. Which one of the following is most likely to occur?
1. The solution changes colour from blue/black to clear as the starch is converted to maltose.
2. The solution remains blue/black due to the presence of the starch solution.
3. The solution changes colour to violet as the starch is converted to a protein.
4. The solution changes colour to red as the starch is converted to glucose.
Benedict's solution is used to test for
1. glucose
2. sucrose
3. starch
4. proteins
What would be the effect of boiling a digestive enzyme at 100 degrees Celsius for 10 minutes?
1. The enzymes would not function at this temperature.
2. There would be no effect i.e. the enzymes would still work as before.
3. The action of the enzymes would be speeded up.
4. The action of the enzymes would slow down a little.
Water passes from the digestive system into the bloodstream via
1. the large intestine
2. the small intestine
3. the rectum
4. the stomach
Which of the following is the correct order for the passing of food through the digestive system?
1. mouth, oesophagus, stomach, large intestine.
2. oesophagus, small intestine, stomach, anus.
3. mouth, stomach, large intestine, small intestine.
4. oesophagus, large intestine, stomach, small intestine.
Which of the following is most likely to happen if too much liquid is allowed to pass out of the digestive system?
1. Diarrhoea
2. Constipation
3. Vomiting
4. Nothing really happens
For the reaction shown, which of the following is correct?
1. Substrate = starch, enzyme = amylase and product = maltose.
2. Substrate = amylase, enzyme = maltose and product = starch.
3. Substrate = maltose, enzyme = amylase and product = starch.
4. Substrate = starch, enzyme = maltose and product = amylase.
Which one of the following is the tooth shown?
1. molar
2. fang
3. incisor
4. canine
Starch digestion begins with the addition of salivary amylase to food particles. Where does this occur?
1. In the mouth
2. In the oesophagus
3. In the stomach
4. In the large intestine
Name the part of the digestive system shown in the diagram.
1. large intestine
2. catalysis
3. nutrition
4. digestion
Food is moved through the digestive system by muscular contractions called
1. peristalsis
2. catalysis
3. nutrition
4. digestion
The large intestine absorbs
1. water
2. carbohydrates
3. minerals
4. fibre
What happens in the part of the digestive system labelled C in the diagram?
1. hydrochloric acid helps digest food
2. physical digestion of food occurs
3. digested food passes into the bloodstream
4. a green liquid called bile is produced
Where in the digestive system does food go after it leaves the stomach?
1. The small intestine
2. The large intestine
3. The oesophagus
4. The pancreas
Where in the body are faeces stored?
1. Rectum
2. The large intestine.
3. The anus
4. The stomach
The chemical process by which cells get the energy out of food is called
1. respiration
2. digestion
3. nutrition
4. circulation
The breakdown of food into smaller soluble parts so that it can be absorbed into the bloodstream is called
1. digestion
2. respiration
3. feeding
4. perspiration
The tube that carries food to the stomach, by muscular action is known as
1. the oesophagus
2. the pancreas
3. the anus
4. the large intestine

Digestive System

Multiple Choice Quiz