organisation

Question 1

whats a tissue?

Answer 1

group of cells with similar structure and function

Question 2

whats an enzyme?

Answer 2

protein thats a biological catalyst.

Question 3

whats starch enzyme, product and where is it made?

Answer 3

amylase, simple sugar(glucose)
salivary glands, pancreas, small intestine

Question 4

whats proteins enzyme, product and where is it made?

Answer 4

pepsin
amino acids
stomach, pancreas, small intestine

Question 5

whats lipids enzyme, product, and where is it made?

Answer 5

lipases
fatty acids and glycerol
pancreas and small intestine

Question 6

what are the products of digestion used for?

Answer 6

to build new carbohydrates, lipids and proteins, some glucose used for respiration

Question 7

where is bile made and stored?

Answer 7

in the liver and stored in the gall bladder.

Question 8

what does bile do?

Answer 8

neutralised stomach acids (HCL)
emulsifies fat to increase SA

Question 9

what does the heart do?

Answer 9

its an organ that pumps blood around body in double circulatory system.

Question 10

what pumps the blood to the lungs?

Answer 10

right ventricle

Question 11

what pumps blood to the rest of the body?

Answer 11

left ventricle

Question 12

structure of arteries?

Answer 12

muscular lining, so can handle high pressures from heart

Question 13

vein structure?

Answer 13

middle layer has smooth muscle cells to allow vein to get wider or narrower as blood passes through

Question 14

capillaries structure?

Answer 14

thin walls, no values or muscle tissue

Question 15

what happens in coronary heart disease?

Answer 15

fatty material builds up, narrowing arteries, reduces blood flow preventing oxygen to heart

Question 16

whats used to keep coronary arteries open? prevent bloody chloesterol

Answer 16

stents, statins

Question 17

what do faulty heart values lead to?

Answer 17

heart failure, stroke, blood clots

Question 18

different types of disease.

Answer 18

defects in immune system, more likely to suffer infectious diseases
viruses in cells can trigger cancer
immune reactions initally caused by pathogensc an trigger allergies
mentally illness can = depression

Question 19

what can increase rate of disease?

Answer 19

lifestyle, environment

Question 20

what are benign tumours?

Answer 20

growths of abnormal cells, dont invade other parts of body

Question 21

what are malignant tumour cells?

Answer 21

cancer, invade neighbouring tissues, spread to different parts of body

Question 22

what does the epidermal tissue do?

Answer 22

help prevent excess water loss and invasion by insects and microorganisms

Question 23

whats the palisade mesophyll

Answer 23

were most photosynthesis occurs, have alot of chloroplats.

Question 24

what does spongy mesophyll allow?

Answer 24

interchange of gases needed for photosynthesis

Question 25

where is the meristem tissue found?

Answer 25

tips of shoots and roots

Question 26

what affects increase rate of transpiration?

Answer 26

temperature, air movement, light intensity

Question 27

what decreases rate of transpiration

Answer 27

humidity

Question 28

what is the role of the stomata and guard cells?

Answer 28

control gas exchange and water loss

Question 29

what does the phloem transport?

Answer 29

dissolved sugar from leaves to rest of plant.