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AQA Biology Paper 1- Health, Disease and Enzymes

Total questions: 33

Worksheet time: 18mins

Name
Class
Date
1.

Something capable of spreading disease without being infected itself (rats, mosquitoes, soil parasites)

a)

Vector

b)

Hazard

c)

Virus

d)

Infection

2.

A rapidly spreading outbreak of disease affecting widespread regions across the world ( ex: smallpox, TB, certain flu outbreaks)

a)

Epidemic

b)

Pandemic

c)

Protozoa

d)

Bacteria

3.
Q Enzymes are able to do what to molecules?
a)
A build them up and break them down
b)
B build them up but not break them down
c)
C not build them up but break them down
d)
D not build them up and break them down
4.
Q Which of these are proteins broken down into?
a)
A Amino acids
b)
B Fatty acids
c)
C Glycerol
d)
D Simple sugars
5.
Q which of these is true for an enzyme reaction?
a)
A the substrate stays the same and enzyme changes
b)
B the substrate changes and the enzyme changes
c)
C the substrate stays the same and the enzyme stays the same
d)
D the substrate changes and the enzyme stays the same
6.
Q Enzymes do not work well above certain temperatures because
a)
A The active site stays the same shape
b)
B The active site changes shape
c)
C They die
d)
D The substrates move too quickly
7.
Q Increasing the temperature of an enzyme catalysed reaction does what to the rate of reaction?
a)
A increases the rate of reaction exponentially
b)
B decreases the rate of reaction
c)
C increases the rate of reaction to a point
8.
Q What do enzymes do above their optimum temperature?
a)
A Die
b)
B Work faster
c)
C Denature
d)
D Work at the same rate
9.
Q What do enzymes do below their optimum temperature as it decreases?
a)
A Denature
b)
B Die
c)
C Become inactive
d)
D Work at the same rate
10.
Q What are statins used for?
a)
A Lowering blood pressure
b)
B Lowering heart rate
c)
C Lowering cholesterol
d)
D Stating cholesterol levels
11.
B2.2.1 - What does amylase break down?
a)
Starch
b)
Glucose
c)
Protein
d)
Cellulose
12.

Which chemical test is used to detect the presence of glucose in food?

a)

Benedict's test

b)

Iodine test

c)

Sudan III test (Biuret)

13.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
14.

When starch is present iodine turns...

a)

purple

b)

blue-black

c)

orange

d)

brick red

15.

When protein is present Biuret turns...

a)

purple

b)

blue-black

c)

orange

d)

brick red

16.

A negative test for starch will cause Iodine to stay...

a)

orange/red

b)

blue

c)

black

d)

brick red

17.

A negative test for glucose will cause Benedicts to stay...

a)

brick red

b)

blue

c)

black

d)

orange

18.

How do you test for lipids?

a)

By using Ethanol and water

b)

By using Benedicts solution

c)

By using Iodine

d)

By using Biuret test

19.

Heart Attack, Stroke & Atherosclerosis are examples of?

a)

Respiratory Diseases

b)

Cardiovascular Diseases (CVD)

c)

Cholesterol

d)

Hypertension

20.

If a blood clot prevents blood from reaching the heart, we call this a ________

a)

stroke

b)

pulse

c)

heart attack

d)

hypertension

21.
Which of the following is a possible long-term side effect of smoking?
a)
Heart Disease
b)
Cancer
c)
Stroke
d)
All of these
22.

Wire mesh that widens blocked arteries.

a)

Stent

b)

Pacemaker

c)

Blood thinning drugs

d)

Statins

23.

Drugs given to patients that have suffered a heart attack.

a)

Stent

b)

Pacemaker

c)

Blood thinning drugs

d)

Statins

24.

What are the disadvantages of using statins?

a)

Must be taken regularly

b)

Have to be taken with food

c)

Side effects such as headaches and kidney failure

d)

Only work on certain people

25.

Which type of tumour is cancerous?

a)

Benign

b)

Malignant

26.

What artificial device can be used to keep arteries open and blood flowing?

a)

A ventilator

b)

A valve

c)

A stent

27.
Q The risk of a heart attack is increased if:
a)
A the coronary arteries are widened
b)
B the coronary arteries are narrowed
c)
C blood pressure is low
d)
D the patient takes statins
28.

Q Cancer is when cells:

a)

A lump together which then splits into other cells changing their DNA

b)

B stop dividing but grow bigger into a lump

c)

C are inherited that are abnormal and die early

d)

D change DNA which leads to uncontrollable growth and division

29.

Risk factors increase your chances of developing certain cancers.

a)

True

b)

False

30.

Why is it a problem if a heart valve is damaged?

a)

Causes the blood to clot

b)

Blood can flow in the wrong direction

c)

Blood flows at a high pressure

d)

Increases cholesterol

31.

Why is it less likely an artificial heart will be rejected by the body?

a)

They have less antigens

b)

They have the correct antigens

c)

The are made from metals or plastics

32.

Why is it important capillaries have permeable walls which are one cell thick?

a)

To limit the exchange of substances

b)

To slow down the exchange of substances

c)

To increase the rate of substance exchange by diffusion

d)

To slow down active transport

33.

What controls your hearts resting heart rate?

a)

Ventricles

b)

Atria

c)

Pacemaker Cells

d)

Hypothalamus

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