Year 9 AP2

Question 0

What are the two different types of drug?

Answer 0

Medicinal - for medicinal purposes

Recreational - used for recreation/to achieve a desired effect

Question 1

What is a drug?

Answer 1

A drug is any substance which changes our biochemistry.

Question 2

How can we tell if a drug is useful?

Answer 2

Must be better than placebo.
Doctors use blind testing.
One gets a placebo (sugar pill) and one gets the drug.
If the drug group get better quicker then the drug works.

Question 3

What does Aspirin do?

Answer 3

Thins blood
Kills pain

Causes bleeding if stomach

Question 4

What do Statins do?

Answer 4

Lower blood pressure.

Question 5

What does Thalidomide do?

Answer 5

Cure for morning sickness/loss of sleep
Cure for leprosy, autoimmune disease, some cancer

Causes birth defects in foetuses

Question 6

What do steroids do? (Cheats)

Answer 6

Anabolic
Build up muscle artificially
Have nasty side effects

Question 7

What do painkillers do? (Cheats)

Answer 7

Competitions can push harder

Don’t notice injury

Question 8

What does EPO do? (Cheats)

Answer 8

Tells body to make more blood cells.
Carry more oxygen.
Causes high blood pressure and all risks associated.

Question 9

What does blood doping do? (Cheats)

Answer 9

Donate blood, freeze it, wait for body to recover, put blood back
More oxygen carrying capacity
Causes high blood pressure and all risks associated.

Question 10

What things do animals compete for?

Answer 10

Food
Territory
A mate

Question 11

How do animals adapt to dry and arctic environments?

Answer 11

Changes to surface area
Thickness of insulating coat
Amount of body fat
Camouflage

Question 12

How do plants adapt to their environments?

Answer 12

Large roots
Non-overlapping leaves
Large growth
Thorns
Poisons
Water storage
Food storage

Question 13

What are some biotic an abiotic factors affecting environmental change?

Answer 13

Biotic
Hunting
Disease
Food

Abiotic
Temperature
Global warming
Wind

Question 14

What are some indicator species?

Answer 14

Lichens are an air pollution indicator, sulphur dioxide causes them to die.
Invertebrates indicate water pollution, can check them to see if the environment is changing.

Question 15

Describe a food chain.

Answer 15

Producer
  ⬇️         Flow of energy
Herbivore/primary consumer
  ⬇️
Top predator/carnivore/secondary consumer

Question 16

Where does energy go in an animal?

Answer 16

Lost as heat
Indigestible material
Movement
Waste products

Question 17

Where does energy go in a plant?

Answer 17

Certain colours reflected
Some passes through
Some lost as heat
Some indigestible

Question 18

What is a pyramid if biomass?

Answer 18

Mass of population at each level, not the number!

Question 19

What is a pyramid of number?

Answer 19

Population at each level.

Question 20

Why do things decay?

Answer 20

Microorganisms
Feed on dead stuff and multiply
Cause things to rot