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PLEASE ENSURE YOU ARE SITTING FOR THE RIGHT EXAMINATION.
STUDENT’S NAME ADM NO. STREAM DATE
YEAR 10 MID OF TERM ONE EXAMINATION ACADEMIC YEAR
BIOLOGY - TIME: 1.30 HOURS.
INSTRUCTIONS.
DIAGNOSTIC TABLE
Fill in the boxes at the top of this page with your name,
Admission number and stream.
Answer all questions.
Read the questions carefully to make sure you know
What you are being asked to do.
Underline or highlight any key words to help focus your
answer.
Remember that TALKING IS NOT ALLOWED
at any time in the exam room.
All your answers should be WRITTEN WITH A PEN
Keep your eyes on your own paper, remember copying
is CHEATING.
INFORMATION.
The total marks for this paper are 70 MARKS.
The marks for each question are shown in brackets.
QN MARKS
TOTAL
STUDENT MARKS (%)
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1.a) Define the term transpiration (2marks)
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b) State five importance/significance of transpiration (5marks)
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c) List four factors that affect the rate of transpiration (4marks)
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d Mention four adaptations of the red blood cells to its function (4marks)
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2.
a) What is the difference between a cell and a tissue (2mks)
b) Yeast is a single-celled fungus. The diagram shows a yeast cell with parts
labelled A to F.
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Name the parts below (3 marks)
A
C
F
c) What are the functions of part (3 marks)
C
D
E
3.
The picture below shows the internal structure of a leaf. Study it and then answer the
questions that follows
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a) Name the parts labelled 1,2,3,6 and 7 (5 marks)
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b) State two functions of the part labelled 6 (2 marks)
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4. Explain five adaptations of the leaf to the process of photosynthesis (10 marks)
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5. The diagram below shows a structure of a human eye.
a) Name the parts labelled A, B and C ( 3 marks)
A
B
C
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b) Explain the functions of the labeled parts above (3 marks)
c) Simple reflexes are responses to stimuli.
Explain the structure and functioning of a simple reflex arc, using the example of the withdrawal of a finger
from a hot object. ( 4 marks)
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6. The diagram shows some structures in the human breathing system.
(a) Name structures A and B.
(2)
A
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B
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b) Name three adaptations of alveoli to the process of gaseous exchange (3 marks)
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7. a) Define the term hormone 2 marks
b) Fill the table below. Some parts have been filled for you 8 marks
Hormones Where they are produced Function
Adrenaline
Antidiuretic hormone
Oestrogen
Insulin
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c) One characteristics of living organism is the ability to respond to changes in the environment.
Explain various changes that a body can do to regulate the temperature of the body in cold
and hot environment (5 marks)
