Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

GCSE AQA- Biology > B2 > Flashcards

B2 Flashcards

1
Q

What is “translocation”

A

translocation is the movement throughout (leaves) one part to other parts of the plant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

why are root hair cells adapted

A

hair root cells are adapted for efficient uptake of water by osmosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what does a phloem tissue do

A

phloem tissue dissolves sugar from the leaves to the rest of the plant for immediate use or storage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is meant by “transpiration”

A

Transpiration is the loss of water by evaporation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what does a plant tissue include?

A

plant tissue includes

  • epidermal tissue
  • paliside mesophyll
  • spongy mesophyll
  • xylem
  • phloem
  • maristem
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what does phloem do?

A

Phloem transports dissolved sugars around the plant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what does a xylem do?

A

the xylem transports water and mineral around the planet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what does a spongy mesophyll do?

A

A spongy mesophyll is the gap needed for gases to pass through

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what does a palisade mesophyll do?

A

A palisade mesophyll is where most photosynthesis takes place

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what does epidermal tissues do?

A

An epidermal tissue protects the cells underneath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what does HIV lead to?

A

HIV leads to weakened immune system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what does the immune system react to and what can it lead to?

A

Immune system reacts to pathogens and can lead to allergies such as asthma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Risk factors for most people that are linked to an increase of a disease

A

risk factors of a disease

  • a person’s lifestyle
  • substance in the person’s body/ environment
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Risk Factors for SOME people that might lead to an increase of disease

A

SOME risk factors for SOME people

  • diet (smoking/ exercise)
  • obesity ( lead to type 2 diabetes)
  • alcohol (function of the brain and the liver)
  • smoking ( lead to lung disease and lung cancer)
  • smoking and drinking has an effect on unborn babies
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

def of correlation

A

correlation is when there is a link between 2 things

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

def of causation

A

causation is when there is scientific evidence when there is a link between 2 things.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is coronary heart disease?

A

when fatty materials build up inside the coronary arteries and reduces the flow of blood and lack of oxygen.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what are stents

A

stents are inserted to open the arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

advantage and disadvantage of drugs (statins) for cardiovascular disease

A

Drugs ( statins)
ads- no surgery
dis- slows the rate of build up but doesn’t help build up if its already present

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

advantage and disadvantage of stents for cardiovascular disease

A

stents
ads- only requires local anaesthetics
dis- some dangers with surgery, can cause a heart attack

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

advantage and disadvantage of mechanical device ( artificial heart) for cardiovascular disease

A 
mechanical device ( artificial heart)
ad- allows patients to survive while waiting for their donor heart 
dis- not a permanent solution
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

advantage and disadvantage of heart transplant for cardiovascular disease

A

heart transplant
ad- can last for many years
dis- could reject the heard

23
Q

The- heart is an organ that pumps blood around the body in a ____________ system

A

double circulatory

24
Q

what does the right ventricle do?

A

The right ventricle pumps blood to the lungs where gas exchange takes place
( b- lungs)

25
Q

WHat does the Left ventricle do?

A

left ventricle pumps blood to the rest of the body

26
Q

what is the coronary artery

A

The coronary artery supplies blood to the muscles of the heart
( b- heart)

27
Q

what is the pulmonary artery and vein

A

the pulmonary artery and vein takes blood from the heart to the lungs
b from h to lungs

28
Q

what does the aorta do? and the vena cava

A

The aorta delivers blood from the heart to the rest of te body
the vena cava returns blood from the rest of the body to the heart

29
Q

what are the 3 blood vessels that the body contains?

A

the 3 blood vessels in the body are

  • arteries
  • veins
  • capillaries
30
Q

what does the arteries do?

A

The arteries carry blood away from the heart

31
Q

What does the veins do?

A

The veins contains valve which prevents the blood from flowing backwards

32
Q

What do the capillaries do?

A

The capillaries have thin walls so it allows blood to flow thru them

33
Q

What do blood contain?

A

blood is a tissue containing plasma

34
Q

what do red blood cells carry

A

red blood cells carry oxygen and they have no nucleus so they are able to maximise their space

35
Q

what are platelets?

A

platelets helps your blood to clot in a wound

36
Q

What is a plasma

A

Plasma is the liquid that carries everything in the blood

37
Q

what are enzymes made up of?

A

enzymes are made up of protein

38
Q

what are the aims of enzymes

A

Enzymes speed up the reactions without being used up

39
Q 
Carbohydrase 
what are the molecules broken down? 
where are the enzymes produced?
where the enzyme reacts ? 
what molecules are formed?
A 
Carbohydrase:
Carbohydrate is broken down (starch) 
they are produced in the pancreas
enzymes reacts in the small intestines to produce carbohydrate reacts in the mouth/ small intestine
the molecule that is formed is glucose
40
Q

what is the opening and the closing of a stomata?

A

opening and he closing of a stomata is a guard cell

41
Q

why does the temperature of the cause in increase in transpiration

A

If there is an increase in temperature it means there is more energy so its able to diffuse and evaporate out the stomata cause an increase in transpiration

42
Q

what is a group of organs working together called?

A

organs in a group working together is called the organ system

43
Q

what molecule is broken into amino acid?

A

proteins are broken into the amino acids

44
Q

what type of food molecule can be identified using the benedict’s test?

A

sugars can be tested using the benedict’s test

45
Q

what is iodine use to test

A

iodine is used to test starch

46
Q

what is the role of stomata and guard cells?

A

to role of stomata and guard cells is to control the gas exchange

47
Q

what are the products of lipids

A

products of lipids are glycerol and fatty acid

48
Q

what side of the heart pumps deoxygenated blood to the lungs

A

The right hand side pumps deoxygenated blood

49
Q

True or false:

communicable disease can spread between people or animals

A

True, communicable disease are contagious (non communicable disease are not)

50
Q

what is meant by carcinogen?

A

carcinogen is something that causes cancer

51
Q

name 2 organs that are affected my drinking alcohol

A

the liver an brain is affected by drinking

52
Q

What is a tumour?

A

Tumour is the uncontrollable growth of a cell

53
Q

What does the mouth do?

A

the food enters the mouth and mixes with saliva which contains enzyme and the teeth breaks down the food

GCSE AQA- Biology (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions