BIOLOGY B2

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what is a tissue?
a tissue is a group of similar cells that work together to carry out a function.
1 of 24
explain what is meant by the term 'organ system'
group of organs working together to perform function.
2 of 24
what is the degestive system?
is an organ system found in humans and other mammals
3 of 24
'THE ROLE OF ENZYMES AND FOOD TESTS
JADE
4 of 24
why can enzymes only usually catalyse one reaction?
enzymes are really picky
5 of 24
why can enzymes be described as catalysts?
they speed up reactions inside living thingsby acting as catalysts
6 of 24
what does it mean when an enzyme has been'denatured'
it means when the chnages in the shape of the enzyme's active site, so the substrate wont fit any more-the enzyme is denatured
7 of 24
list three places where amylase is made in the human body
salivary gland, pancreas and small intestine
8 of 24
what is the role of lipases?
made in the pancreas and small intestine. they work in the small intsestine
9 of 24
where is the bile stored?
is produced in the liver. stored in the gall bladder before it is relased into the small intestine. bile is alkaine
10 of 24
name the solution that you would use to test for the presence of proteins in a food sample
biuret solution
11 of 24
THE LUNGS AND CIRCULATORY SYSTEM
JADE
12 of 24
where does gas exchange happen in the lungs?
alveoli
13 of 24
name the four chambers of the heart
pulmonary atery, vena cava, aorta, pulmonary vein
14 of 24
where the heart have valves?
the vales in the heart stop the blood flowing backwards
15 of 24
DISEASES AND RISK FACTORS
JADE
16 of 24
advantages of statins
statins reduce the risk of strokes, coronary heart disease and heart attacks. help prevents some other dieases
17 of 24
disadvantages of statins
statins can cause unwanted side effects: headaches
18 of 24
what is an non-communiable disease?
diseases that cannot spread between people animals and people.
19 of 24
give an example of different types of disease interacting in the body
pathogen, viruses,
20 of 24
which type of tumour is cancerous
benign tumours are masses of abnormal cells.
21 of 24
PLANT CELL ORGANISATION AND TRANSPORT
JADE
22 of 24
list the tissues that made up a leaf
epidermal tissue, palisade mesophyll, spongy mesophyll, xylem and phloem, meristem
23 of 24
what is the function of phloem tubes?
transport food
24 of 24

Other cards in this set

Card 2

Front

explain what is meant by the term 'organ system'

Back

group of organs working together to perform function.

Card 3

Front

what is the degestive system?

Back

Preview of the front of card 3

Card 4

Front

'THE ROLE OF ENZYMES AND FOOD TESTS

Back

Preview of the front of card 4

Card 5

Front

why can enzymes only usually catalyse one reaction?

Back

Preview of the front of card 5
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