Page 87 - Biology_Form_3

Biology for Secondary Schools
(b) Analyse the effects of GH
overproduction in children and
in adults.
13. You are a healthcare advisor at a
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clinic, and several patients have
come to you with concerns about
insulin deficiency and its impact on
their health.
(a) Explain how insulin works in
the body to regulate blood sugar
levels and the consequences of
insulin deficiency on metabolism.
(b) Based on your understanding of
insulin deficiency, provide three
different risk behaviours that can
be avoided.
14. A pregnant woman is advised to
attend clinic regularly to monitor
her progesterone levels. What were
the reasons behind the advice? What
consequences will she face if her
progesterone level drastically fall?
15. Laboratory results show that a patient
has low levels of thyroxine in the
bloodstream.
(a) Outline two major functions of
this hormone in the human body.
(b) Describe two health conditions
associated with thyroxine
deficiency.
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BIOLOGY FORM 3 FINAL EDITED 16.09.2025.indd 80 KAMISHNA
BIOLOGY FORM 3 FINAL EDITED 16.09.2025.indd 80
16. Imagine you are researcher working
with a team to study how the body
responds to stress. You have been
assigned to investigate on the roles
of adrenaline and noradrenaline,
hormones that play a key part in the
body’s “fight-or-flight” response.
(a) How do adrenaline and
noradrenaline work together to
prepare the body for a stressful
situation, such as when a person
faces an emergency (e.g., an
approaching car or an aggressive
encounter).
(b) Describe two physiological
effects of adrenaline and
two physiological effects of
noradrenaline on the human body
during this stressful situation.
17. In some communities, hormonal
imbalances are attributed to
superstitious beliefs rather than
biological causes. If you are invited
to address a village meeting on health
matters,
(a) Prepare a scientific summary on
how to change this perception.
(b) Using relevant examples how will
you advise them to seek medical
care once they realise having
hormonal disorders?
Student’s Book - Form Three
23/10/2025 11:52:42
23/10/2025 11:52:42 KAMISHNA