GCSE AQA Biology Revision Flashcards

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30 question-and-answer flashcards covering key GCSE AQA Biology topics, from cell structure to sustainability.

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30 Terms

1

What are the two main types of cell?

Prokaryotic and eukaryotic

2

How is magnification calculated?

By dividing the size of the image by the size of the real object

3

What are chromosomes made of?

DNA

4

What is the process by which water molecules move from a dilute solution to a more concentrated one across a semi-permeable membrane?

Osmosis

5

What is an organ?

A group of different tissues working together to perform a specific job

6

What are the three main types of digestive enzymes?

Protease, lipase and carbohydrase

7

What are the three different types of blood vessel?

Arteries, veins and capillaries

8

What two treatments can be used for coronary heart disease?

Stents to keep coronary arteries open and statins to reduce cholesterol

9

What is the process by which water evaporates through stomata in the leaves?

Transpiration

10

What is the vector of malaria?

A type of mosquito

11

How can a person be made immune to a specific disease?

Through vaccination

12

What is MRSA?

A strain of bacteria that is resistant to antibiotics

13

What types of plant diseases are caused by a lack of mineral ions in the soil?

Deficiency diseases

14

What two products are produced when carbon dioxide and water combine in photosynthesis?

Glucose and oxygen

15

What is anaerobic respiration in yeast cells called?

Fermentation

16

Which part of the brain controls body temperature?

The thermoregulatory centre

17

What structure carries impulses from the retina to the brain?

The optic nerve

18

What are the chemical messengers produced by glands of the endocrine system?

Hormones

19

What four hormones are involved in the menstrual cycle?

Follicle-stimulating hormone (FSH), oestrogen, luteinising hormone (LH) and progesterone

20

What process causes a plant to grow toward or away from light?

Phototropism

21

What type of cell division forms gametes?

Meiosis

22

What is the structure of DNA?

A double helix polymer of nucleotides

23

What word describes having two different alleles for a gene?

Heterozygous

24

What process is the gradual change in the inherited characteristics of a population over time?

Evolution

25

How are genetically identical individuals described?

Clones

26

What classification system gives organisms a two-part name of genus and species?

The binomial system

27

What is a population?

A group of individuals of one species living in a habitat

28

What are the top consumers in a food chain called?

Apex predators

29

Name two gases that contribute to global warming.

Carbon dioxide and methane

30

How are methods that increase food production now but leave enough resources for the future described?

Sustainable