Cambridge
Checkpoint The Indian Public School, Trichy
CANDIDATE
NAME
CENTRE CANDIDATE
I A 1 2 9
NUMBER NUMBER
8
Subject: Biology Name of the Examination: FA 3
Class: 7 Duration: 40 Minutes
Additional Material Required:
READ THESE INSTRUCTIONS FIRST. For Examiner’s Use
Write your Centre number, candidate number and name on all the Q. No. Marks
work you hand in. obtained
1 /5
Write in dark blue pen.
2 /4
You may use an HB pencil for any diagrams, graphs or rough working.
3a /1
Do not use staples, paper clips, glue or correction fluid.
3b /2
Answer all questions.
4a /2
You should show all your working in the booklet. 4b /1
The number of marks is given in brackets [ ] at the end of each 5a /3
question or part question.
5b /1
Finish your question paper in time and recheck your answer script
before you submit to the invigilator. 6a /2
You may use the calculator as per the instructions given by the subject 6b /5
facilitator. 7 /2
The total number of marks for this paper is 30. 8 /2
/
Total /30
This document consists of printed 5 pages.
1
1. Choose the words from the list to fill in the blanks.
antibodies chemicals pathogens red blood cells phagocytosis
White blood cells are easy to distinguish from ……………………... Bacteria and viruses can cause illness
when they get into the body. These bacteria and viruses are called ……………………... Some kinds of
white blood cell make ……………………... called ……………………... W.B.C. produces chemicals that
kill and digest the bacterium by a process called …………………….... [5]
2. The diagram is of a human heart.
Use label lines and labels to identify these structures on the diagram:
atrium • septum • ventricle • valve [4]
3. Blood cells are transported in a liquid.
(a) Write down the name of this liquid.
……………………………………………………………………………………………………………… [1]
(b) Write down the other function of this liquid.
………………………………………………………………………………………………………………….
……………………………………………………………………………………………………………… [2]
4. In the United Arab Emirates, the desert is an important ecosystem.
(a) Explain what is meant by the word ecosystem.
2
………………………………………………………………………………………………………………….
………………………………………………………………………………………………………………….
…………………………………………………………………………………………………………… [2]
(b) The desert provides many different places for organisms to live. Which scientific term is used to describe
the place where an organism lives? Circle the correct answer.
environment habitat home [1]
5. The photomicrograph below shows some red blood cells, taken through a microscope.
(a) Explain the features of a red blood cell given the table below are important to its functions.
Write your answers in the table below.
Feature of red blood cell Explanation of importance
contains haemoglobin
no nucleus present
very tiny cell
[3]
(b) Name the other components found in the blood.
…………………………………………………………………………………………………………. [1]
6. The diagram shows the Human circulatory system. Four organs are labelled as A, B, C D.
3
(a) Look at the diagram and label the four organs.
A …………………………….. B …………………………….
C ……………………………. D ……………………………. [2]
(b) The diagram shows the Blood vessel:
Complete the table
Blood vessel Structure Explanation of how structure is related to
function
A
…………………
4
…………………
[5]
7. After recovering from a disease, a patient's white blood cell (WBC) count may increase – give reason.
………………………………………………………………………………………………………………….
………………………………………………………………………………………………………………….
…………………………………………………………………………………………………………… [2]
8. Imagine a scenario where the valves in the heart do not close properly. What could be the possible
consequences, and how might this condition affect the body's overall function?
………………………………………………………………………………………………………………….
………………………………………………………………………………………………………………….
…………………………………………………………………………………………………………… [2]
