What's covered
Gas exchange and breathing10
Nutrition and digestion10
Reproduction (human and plant)10
Health, diet, exercise, drugs8
Sample questions
A taste of the 38 questions in this topic — answers marked. Sign up to practise the full set with spaced repetition.
1Gas exchange and breathing
What are the tiny air sacs in the lungs called?
- ✓Alveoli
- •Bronchi
- •Capillaries
- •Cilia
2Health, diet, exercise, drugs
What is a balanced diet?
- •Mostly carbohydrates and fats at every meal
- •No added sugar at all in any meal eaten
- ✓Right amount of each food group for the body
- •The same food at every meal of the day
3Nutrition and digestion
What are the seven food groups?
- •Bread, rice, meat, milk, fruit and vegetables only
- ✓Carbs, fats, protein, vitamins, minerals, fibre, water
- •Just carbohydrates, fats, and protein content only
- •Sugars, salts, oils with some fibre included
4Reproduction (human and plant)
What is the female sex cell in humans called?
- ✓egg cell (ovum)
- •nerve cell
- •red blood cell
- •sperm cell
5Gas exchange and breathing
Why are alveoli adapted for gas exchange?
- ✓Large surface area, thin walls, good blood supply
- •Lots of muscle to push air around the body
- •Strong cilia to trap dust from the air
- •Thick walls keep gases inside the lungs
6Health, diet, exercise, drugs
Which is a benefit of regular exercise?
- •Less need for sleep
- •Removes need for water
- •Slower digestion of food
- ✓Stronger heart and muscles
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