B1.1 Keeping Healthy (Part 1/2 - B1.1.1 Diet + Exercise) Flashcards Preview

Biology Unit 1 > B1.1 Keeping Healthy (Part 1/2 - B1.1.1 Diet + Exercise) > Flashcards

Flashcards in B1.1 Keeping Healthy (Part 1/2 - B1.1.1 Diet + Exercise) Deck (31)
Loading flashcards...
1

Name the 7 nutrients needed to keep the body healthy.

- Carbohydrates
- Proteins
- Water
- Fat
- Minerals
- Vitamins
- Fibre

2

What is one use of carbohydrates and where are they found?

- To release energy
- In starchy foods e.g pasta

3

What are two uses of proteins and where are they found?

- Cell growth
- Cell repair
- Meats, eggs, dairy foods

4

What are two uses of fats and where are they found?

- To keep you warm
- To release energy
- In fatty foods

5

What is one use of minerals and where are they found?

- To maintain health
- Salt, milk

6

What is one use of vitamins and where are they found?

- To prevent diseases
- Fruit and veg

7

What is one use of fibre and where are they found?

- Provide roughage
- Wholemeal bread, porridge

8

What is the use of water?

Needed for cells and body fluids

9

Define 'metabolic rate'

How quickly chemical reactions are carried out in the body cells

10

Name 5 things that affect metabolic rate

- Size
- Inheritance
- Gender
- Amount of exercise
- Proportion of muscle to fat in the body

11

Define 'malnourished'

Having an unbalanced diet

12

What 2 things should a healthy diet do?

- Have the right balance of the different foods you need - - Have the right amount of energy

13

Name 3 types of fats

- Saturated fats
- Mono-saturated fats
- Poly-unsaturated fats

14

Describe the effect of saturated fats and where they are found.

- They increase blood cholesterol levels
- Found in animal fats e.g butter, meat, cheese

15

Describe the effect of mono-saturated fats and where they are found.

- They reduce overall blood cholesterol levels and improve balance between HDLS and LDLS
- Found in oils, margarines, oily fish

16

Describe the effect of poly-saturated fats and where they are found.

- The same effect as mono-unsaturated fats but better
- Corn oil, sunflower oil

17

What deficiency disease does a lack of Vitamin C give and what are its symptoms?

Scurvy - spots on skin, bleeding gums

18

What deficiency disease does a lack of protein give and what are its symptoms?

Kwashikor - big belly

19

What deficiency disease does a lack of calcium give and what are its symptoms?

Osteoporosis - brittle bones

20

What deficiency disease does a lack of iron give and what are its symptoms?

Anaemia - unusual tiredness

21

What deficiency disease does a lack of Vitamin D give and what are its symptoms?

Rickets - soft bones

22

Name 4 symptoms of starvation.

- Periods stopping
- Body hair growth
- Lack of focus
- Immune deficiency

23

Name 4 obesity related health problems.

- Arthritis
- High blood pressure
- Heart disease
- Type 2 diabetes

24

Name 5 factors that increases the chance of getting type 2 diabetes.

- Obesity
- Faulty genes
- Bad diet
- Smoking
- Lack of exercise

25

How does type 1 diabetes occur?

Pancreas cells that make insulin are destroyed by the body's immune system

26

What are LDLS?

Low Density Lipoproteins
They increase the risk of heart disease ("bad cholesterol")

27

What are HDLS?

High Density Lipoproteins
They reduce the risk of heart disease ("good cholesterol")

28

Describe how a person's mass can be changed in terms of energy consumed and expended.

The less the energy content of the food they consume and the more energy expended (e.g increased exercise), the less a person's mass

29

Name 3 genetic diseases.

- Cystic fibrosis
- Sickle cell anemia
- Hemophilia

30

What diseases come with old age?

- Arthritis
- Dementia
- Alzheimer's
- Diabetes
- Asthma
- Cancers
- Heart disease