HEROES’ PRIVATE SCHOOL
NATURAL SCIENCE
Name: ___________________________
Theme: HUMAN BODY
Grade: 7 ___
Date: ________
Target: A B
Total: 45 marks
C
Instructions and information to candidates
 The question paper consist of two sections, Section A (Multiple choice questions) and Section B
(Structured questions).
 Answer all questions
 Circle the letter of the answer you consider in section A with a pencil.
SECTION A (Multiple Choice Question)
1.
The term used describe a young person developing from childhood to
adulthood.
A.
Puberty
B.
Teenager
C.
Adolescent
D.
Toddler
(1)
2.
1
Which statement is false?
A.
The foetus grows and develop in the uterus
B.
Egg cells are made in the ovaries
C.
Urethra does not carry sperm cells only
D.
A mixture of sperm cells and seminal fluid is not called semen
(1)
3.
4.
________ is the end-product for starch digestion.
A.
Glucose
B.
Salt
C.
Minerals
D.
Amylase
Which system of the human body is shown in the diagram?
A.
Transport system
B. Digestive
C. Food
D.
5.
(1)
system
system
Nervous
(1)
Which of the following is part of male reproductive organs?
A.
Clitoris
B.
Penis
C.
Bladder
D.
Labia
(1)
[5]
2
SECTION B (Structured questions)
Question 1
1.1
Define the following biological terms.
a)
An Enzyme
______________________________________________________________
______________________________________________________________
________________________________________________________
(2)
b)
Excretion
______________________________________________________________
______________________________________________________________
_______________________________________________________
(2)
1.2
State two forms of digestion.
_________________________________________________________________
__________________________________________________________
(2)
1.3
Explain the basic function of a human reproductive system.
_________________________________________________________________
___________________________________________________________ (1)
1.4
Mention two main parts of a central nervous system (CNS).
_________________________________________________________________
___________________________________________________________ (2)
1.5
Give the importance of chewing food.
_________________________________________________________________
___________________________________________________________ (1)
3
Question 2
2.1 Study the diagrams below and answer the questions that follow.
Fig. 1
i)
Fig.2
Identify the part labeled 6 on fig.2
___________________________________________________________ (1)
ii)
Write down the letter for the part where semen is deposited during copulation on
fig.1
___________________________________________________________
iii) Identify
(1)
part A and give its function in the female reproductive system.
_________________________________________________________________
____________________________________________________________ (2)
iv)
State the function of part labeled 5 on fig.2
_____________________________________________________________ (2)
v)
What role does the epididymis play in fig.2?
__________________________________________________________________
_____________________________________________________________ (2)
4
Question 3
3.1 The diagram shows the pre-adolescents- Thomas and Anna. Study it and
answer the questions to follow.
a)
Identify the one secondary sexual characteristic that you observed on
Thomas and Anna.
Thomas:____________________________________________________
_______________________________________________ (1)
Anna:_______________________________________________________
_________________________________________________
(1)
b)
Give one common physical change in both boys and girls during puberty.
___________________________________________________________
__________________________________________________________
(1)
5
c)
State any one emotional change that occurs in pre-adolescent boys and
girls.
___________________________________________________________
__________________________________________________________
(1)
Question 4
4.1 Fill in the missing information in the table below.
Insoluble food substance
(3)
Soluble end-product
Amino Acids
……………………..
Fat
……………. and ……………
4.2 What is the basic function of the reflex arc?
_____________________________________________________________
__________________________________________________________ (2)
4.3 Explain how alcohol and drugs affect or influence the nervous system.
_____________________________________________________________
__________________________________________________________ (2)
4.4. The diagram shows the urinary system. Study it answer the questions that will
follow.
i) On the diagram identify and label parts F and I. (1)
ii) Write down the letter of the part that stores urine.
______________________________________ (1)
iii) Part H is Ureter .what is the function of Ureter?
_________________________________________
________________________________________ (2)
6
iv) The diagram consists of one of three excretory organs of the human body. List
the other two excretory organs and state the waste products they remove from
the body.
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
_________________________________________________________________ (4)
4.5. Give the one basic function for the following body systems.
a)
b)
7
______________________________________________ (1)
__________________________________________ (2)