9. Use the data in the table below to answer the questions that follow: Food
Energy Milk
Sausage Chicken Cabbage Apples
(kJ/100 g) 273
1515 602 64
198
Protein (% per 100 g)
3.4 Fat
(% per 100 g)
3.7
10.8 31.9 26.4 1.8 0.4
4.1 0 0
Carbohydrate (% per 100 g)
4.6 9.7 0
2.5 12.1
0 0 0
56 21
Fibre (% per 100 g)
Iron
(mg/100 g) 0.1
1.1 0.6 0.6 0.3
a. Which food contains the highest percentage of carbohydrates? Why do we need carbohydrates?
b. Which food contains the least iron? Why do we need iron? c. Which food supplies the most energy? d. Why do you think cabbages and apples are so low in protein? e. How much protein is there in 200 g of chicken? f. How much fat is there in 75 g of milk?
10. a. List three lifestyle choices that affect human health. b. Why it is important that people: i. get enough exercise ii. get enough sleep?
c. Outline the harmful effects on human health of: i. smoking
ii. excessive use of alcohol
11. a. Identify the three different types of micro-organisms. b. What is the term used to describe a micro-organism that causes disease?
12. List one human disease caused by: a. bacteria b. viruses c. fungi
13. a. Explain the term ‘antibiotic’.
b. Outline two ways we can slow down the spread of antibiotic resistance amongst bacteria.
14. Viruses have been described as being ‘on the margins of life’. Explain this statement.
15. What is a vaccine?
16. Outline three ways we can reduce the spread of viral infections.