Topic 2- Organisation

Question 1

What are cells?

Answer 1

the basic building blocks of all liviong things

Question 2

What is a tissue?

Answer 2

a group of cells

Question 3

what is an organ?

Answer 3

a group of tissues working together to perform a specific function

Question 4

What is an organ system?

Answer 4

a group of organs working together to perform a specific function

Question 5

what are 3 different types of tissue?

Answer 5

muscular
glandular
epithelial

Question 6

what is an example of an organ system?

Answer 6

respiratory system

digestive system

Question 7

What do organ system work together to form?

Answer 7

organisms

Question 8

What is an enzyme?

Answer 8

a biological catalyst that increases the speed of a reaction

Question 9

Is a catylyst used up?

Answer 9

no

Question 10

What does a group of epithelial tissues make?

Answer 10

the stomach

Question 11

What do anabolic catalysts do?

Answer 11

join things together

Question 12

What do catabolic catalysts do?

Answer 12

break things apart

Question 13

Why are enzymes specific?

Answer 13

active sites have a unique shape so can only catalyse one reaction

Question 14

What is the ideal temperature for enzymes?

Answer 14

40 degrees c

Question 15

What happens if en enzyme exceeds 40 degrees?

Answer 15

the bonds holding the enzyme together break and the enzyme becomes denatured

Question 16

Do enzymes have an optimum ph?

Answer 16

yes

Question 17

What is normally the optimum ph of enzymes?

Answer 17

7/ neutral

Question 18

What enzymes works best at ph 2?

Answer 18

pepsin which is found in the stomach

Question 19

What is the equation to work out the rate of reaction?

Answer 19

1000/time

Question 20

What is a communicable disease?

Answer 20

an illness that can spread from person to person

Question 21

What is a non communicable disease?

Answer 21

an illness that cannot spread

Question 22

What increases the risk of cancer?

Answer 22

smoking
obesity
uv exposure
viral infection

Question 23

Where is bile produced?

Answer 23

the liver

Question 24

Where is bile stored?

Answer 24

the gall bladder

Question 25

What does bile do to fats?

Answer 25

it emulsifies them and breaks them into small droplets

Question 26

What does bile do to the small intestine?

Answer 26

makes it alkaline so certain enzymes can work

Question 27

What does amylase do?

Answer 27

converts starch into maltose

Question 28

What does protease do?

Answer 28

convert proteins into amino acids

Question 29

What does lipase do?

Answer 29

convert lipids into glycerol and fatty acids

Question 30

What is used to test for sugars?

Answer 30

blue benedicts

Question 31

What is used to test for starch?

Answer 31

iodine soloution

Question 32

What is used to test for proteins?

Answer 32

biuret test

Question 33

`What is used to test for lipids?

Answer 33

sudan 3

Question 34

what will happen to benedicts if sugar is present?

Answer 34

it changes from blue to green yellow or red depending on strength

Question 35

What will happen to iodine if starch is present?

Answer 35

it will go a bluey black

Question 36

What will happen to biuret if protein is present?

Answer 36

it will change from pink to purple

Question 37

What will happen to sudan 3 if lipids are present?

Answer 37

a bright red layer will form on top

Question 38

how many chambers does the heart have?

Answer 38

4

Question 39

which 2 chambers are on the top?

Answer 39

the atriums

Question 40

why is the right side of the heart on the left?

Answer 40

its the persons right side of his heart but we look the other way

Question 41

what does the right ventricle do

Answer 41

pump oxygenated blood to the lungs to take in oxygen

Question 42

How are arteries adapted for carrying blood?

Answer 42

thick walls can carry blood under preassure

Question 43

How are capillaries adapted for carrying blood?

Answer 43

the walls are 1 cell thick so substances can be exchanged easier

Question 44

How are veins adapted for carrying blood?

Answer 44

large lumen and valves help blood flow even when there is low pressure and keep it flowing in the right direction

Question 45

How are red blood cells adapted?

Answer 45

concave shape provides them with a large surface area for absorbing oxygen

Question 46

What is the function of platelets?

Answer 46

help blood clot to prevent microorganisms getting in

Question 47

What is transpiration?

Answer 47

the loss of water from a plant

Question 48

How are guard cells adapted?

Answer 48

they open and close stomata to control water loss within a plant

Question 49

What are the advantages and disadvantages of stents?

Answer 49

keeps arteries lowers risk of heart attack quick recovery time requires surgery

Question 50

What are the advantages and disadvantages of statins?

Answer 50

reduces bad cholestral long term drug negative side effects takes time to work

Question 51

What are the advantages and disadvantages of an artificial heart?

Answer 51

less likely to be rejected can keep a patient alive sometimes leads to bleeding and infection

Question 52

What is cancer caused by?

Answer 52

the uncontrolled growth and division of cells

Question 53

What is a benign tumour?

Answer 53

a tumour that stays in one place and isnt as dangerous

Question 54

What is a malignant tumour?

Answer 54

a tumour that grows and spreads to nearby healthy tissue. they create secondary tumours

Question 55

Describe the path that air takes through the body

Answer 55

trachea, bronchi, broncholes, alveoli