MCQ-1: Human Nutrition

Which condition can sometimes be prevented by eating plenty of fresh fruit and vegetables?

The photograph shows human blood cells as seen under a microscope at high power.

Which are red cells?

The graph shows pH changes in the mouth after eating.

Why is it a good idea to brush teeth after eating?

Which chemical reaction takes place in the stomach?

A person has bleeding gums.
This could be caused by a lack of which nutrient?

The table shows the main contents of four meals.
Which meal will be the most effective at preventing constipation?

Why does chewing food speed up digestion?

The diagram shows the four types of human tooth.

Which teeth are used for cutting rather than grinding food?

The diagram shows an experiment kept at room temperature.

What is present in the water surrounding the membrane after 45 minutes?

What is the result of a diet lacking iron?

The diagram shows two food tests carried out on solution X.

Which nutrients are present in solution X?

A person has their gall bladder removed.
Which statement is correct?

The diagram shows blood passing through an arteriole into a capillary. Part of the capillary wall has been cut away to show the blood.

What is the level of organisation of the structures labelled P and Q?

Poor nutrition can lead to a condition called rickets in which bones fail to develop properly.
The table shows some minerals and vitamins present in four foods.
Which food would be best for a child who has rickets?

key
✓ = substance present
x = substance absent

Which components make up most of the dry mass of a balanced diet?

The diagram shows part of the human alimentary canal.
In which part does protein digestion begin?

What is not a result of cholera infection?

What is the function of bile?

The following symptoms can be caused by a dietary deficiency:

• bone pain
• dental problems
• fragile bones
• skeletal deformities

A lack of which nutrient is most likely to cause these symptoms?

Statements 1– 4 describe stages in the development of cholera.

1.  Chloride ions are secreted in the gut.
2.  Osmosis causes water to move into the gut.
3. The infected person becomes dehydrated.
4.  Toxins are produced by the pathogenic bacteria.

What is the correct sequence of the four stages?