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Title: Mock exam
Description: This is a brand new mock exam for 5090 biology. I have prepared it myself but some of the diagrams are from pastpapers.
Description: This is a brand new mock exam for 5090 biology. I have prepared it myself but some of the diagrams are from pastpapers.
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Figure 1
a) Define the term enzyme
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b) i) Using a labelled line, on Figure 1 label the “lock” and “key”
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Describe and explain how a
change in temperature has effect on the rate of enzyme activity
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The North Korean Famine also known as The March of suffering occurred from 1994 to
1998 due to economic mismanagement and decline in food import
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This
also
diseases
led
due
to
to
malnutrition
malnutrition
and
were
observed among the children
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b) In an effort to reduce the effects of famine, an international campaign was launched
which included supplying emergency famine food for the North Koreans
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c) Explain why a child requires diets rich in protein more than an average adult
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2 shows a vertical section through the skin
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c) Certain food such as capsaicin which is found in chilli peppers are known to cause
vasodilation
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Fig
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A
B
F
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D
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Figure 3
a) Using letters only, state which parts are involved
i) In forming a focused image of a distant object …………………………………………
ii) In reflex action occurred due to change in light intensity ……………………………
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In your answer you should name
the structures involved using correct label letters
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Using you knowledge
on image formation, explain what causes the condition mentioned above
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d) To prevent damages to light sensitive parts of the eye, a reflex action occurs which is
known as pupil reflex
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Figure 4
a) Name the parts labelled and give one function of each
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c) Brain is one component which serves to coordinate and regulate bodily functions
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d) Reflex actions occur in order to minimise the damage to body
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a) State which type of variation is shown in the blood graph?
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This condition is known
as sickle cell anaemia
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State which disease
might be caused because of this change
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d) Sickle cell anaemia can be inherited because of lack of dominant allele in the gene
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Title: Mock exam
Description: This is a brand new mock exam for 5090 biology. I have prepared it myself but some of the diagrams are from pastpapers.
Description: This is a brand new mock exam for 5090 biology. I have prepared it myself but some of the diagrams are from pastpapers.