Pages in this set

Page 1

Preview of page 1
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS




AS Biology:
UNIT 1 Biology and Disease
1. CAUSES OF DISEASE.
2. ENZYMES AND THE DIGESTIVE SYSTEM.
3. CELLS AND THE MOVEMENT IN AND OUT OF THEM.
4. LUNGS AND LUNG DISEASES.
5. THE HEART AND HEART DISEASE .
6.…

Page 2

Preview of page 2
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS



..........
(3)
Total 5 marks)


Ans1 (a)

Because arteries cannot dilate / dilate less
Heart must work harder to force blood through
Increases blood pressure

max 2

(b) Higher blood pressure causes damage to blood vessel lining / endothelium
/…

Page 3

Preview of page 3
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS




..............................................................................................................
..........

..............................................................................................................
..........
(2)

(b) (i) Over the period shown, the incidence of melanoma has
increased. Give two other conclusions that can be drawn from the
graph, about the incidence of melanoma.

....................................................................................................
.........

....................................................................................................
.........

....................................................................................................
.........

....................................................................................................…

Page 4

Preview of page 4
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS



Total 8 marks)


Ans 2 (a)

(Cancer = ) mass of cells that divide continuously / uncontrolled / faster
(Malignant = ) can spread (to other body parts)

2

(b) (i) Higher incidence in females than males / females have…

Page 5

Preview of page 5
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS




..............................................................................................................
..........

..............................................................................................................
..........

..............................................................................................................
..........

..............................................................................................................
..........

..............................................................................................................
..........

..............................................................................................................
..........
(3)

(ii) Suggest one reason why people who neither drink nor smoke sometimes
develop mouth cancer.

..............................................................................................................
..........

..............................................................................................................
..........
(1)
(Total 4 marks)







5

Page 6

Preview of page 6
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS



Ans 3. (i)smoking and drinking increase risk
risk increases for nonsmokers with more alcohol
2040 cigarettes increases risk
at all levels of alcohol consumption
4 or more drinks increase risk in all groups
worst risk with combination of 40+ cigarettes…

Page 7

Preview of page 7
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS



...........................................................................................
........

....................................................................................................
.........

2
...........................................................................................
........

....................................................................................................
.........
(4)






7

Page 8

Preview of page 8
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS




(b) People have been advised to reduce their cholesterol intake as a part of a
healthy life style. The graph shows information about mean daily intake of
cholesterol.








Calculate which group, male or female, shows the greater percentage
reduction in…

Page 9

Preview of page 9
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS



..........

..............................................................................................................
..........

..............................................................................................................
..........
(6)
(Total 12 marks)



Ans4. (a)

(i)

(Risk of):High blood pressure increases with age
Heart attack increases with age / no heart attacks before 35 years

2

(ii) Females (or reverse argument for males):
More…

Page 10

Preview of page 10
AS AQA BIOLOGY :UNIT 1
PAST EXAM QUESTIONS & ANSWERS






TOPIC 2 ENZYMES AND THE DIGESTIVE SYSTEM
1. Sucrose is a disaccharide. It is also a nonreducing sugar.

(a) Benedict's solution is used to identify nonreducing sugars.

Complete the flow chart to show the steps you would carry out in…

Comments

Habz100

amazing! Thank you so much!

Similar Biology resources:

See all Biology resources »See all resources »