(a) State two functions of water in the body. [2] (b) Name two ways the body loses water each day. [2] (c) Explain why it is important for a person to drink...
Question 1 Report
(a) State two functions of water in the body. [2]
(b) Name two ways the body loses water each day. [2]
(c) Explain why it is important for a person to drink enough water, especially in hot weather or during exercise. [3]
Answer Details
(a) State two functions of water in the body. [2]
One mark each (max 2):
- Helps to transport nutrients and waste products around the body (1)
- Helps to regulate body temperature through sweating (1)
- Needed for chemical reactions in the body (1)
- Makes up a large part of blood and other body fluids (1)
- Keeps skin and mucous membranes moist (1)
(b) Name two ways the body loses water each day. [2]
One mark each (max 2):
- Through urine (1)
- Through sweat/perspiration (1)
- Through breathing out moist air (1)
- Through faeces (1)
(c) Explain why it is important to drink enough water, especially in hot weather or during exercise. [3]
One mark for each valid point (max 3):
- In hot weather and during exercise the body sweats more to cool down (1)
- This means more water is lost and must be replaced to prevent dehydration (1)
- Dehydration can cause headaches, tiredness, dizziness and in severe cases can be dangerous (1)
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