science- blood & heart, lungs & breathing, drugs

Question 1

function of plasma

Answer 1

liquid part of blood

Question 2

function of red blood cells

Answer 2

carries oxygen

Question 3

function of white blood cells

Answer 3

fight disease/ infection

Question 4

function of platelets

Answer 4

clots blood

Question 5

What are the 4 parts of blood ?

Answer 5

plasma, red blood cells, white blood cells, platelets

Question 6

what are the different blood vessels

Answer 6

artery, capillaries, veins

Question 7

arteries function

Answer 7

carries blood away from heart

Question 8

veins function

Answer 8

carries blood to heart

Question 9

capillary function

Answer 9

exchange of substances between blood and cells

Question 10

adaptation of artery

Answer 10

thick muscular, elastic walls to maintain high pressure

Question 11

veins adaptions

Answer 11

thin walls, valves to prevent backflow

Question 12

capillary adaptions

Answer 12

wall is one cell thick to allow diffusion of molecules

Question 13

what happens to the diaphragm whilst inhaling

Answer 13

contracts, moves downwards

Question 14

diaphragm whilst exhaling

Answer 14

relaxes, moves upwards

Question 15

intercostal muscles whilst inhaling

Answer 15

contracts, moves ribs up and out

Question 16

intercostal muscles whilst exhaling

Answer 16

relaxes, moves ribs down and in

Question 17

volume of ribcage inhaling and exhaling

Answer 17

increase and decreases

Question 18

pressure in chest whilst inhlaing and exhaling

Answer 18

decrease and increases

Question 19

alveoli

Answer 19

small sacs in lungs where gas exchange occurs

Question 20

depressant effect

Answer 20

slows nerve + brain activity

Question 21

examples of depressants

Answer 21

alcohol, solvents, temazepam

Question 22

hallucinogen effect

Answer 22

alters what we see and hear

Question 23

example of hallucinogen

Answer 23

LSD

Question 24

painkiller effect + examples

Answer 24

blocks nerve impulses , aspirin and paracetamol

Question 25

performance enhancer effect and examples

Answer 25

improves muscle development , anabolic steroids

Question 26

stimulant effect and examples

Answer 26

increases nerve and brain activity , nicotine , caffeine and ecstasy