HHS School System (O level)
General Science Class VI
Name: ____________________________ Revision worksheet – Chapter 2
Section: _____
Q1. Choose the most appropriate answer from the following options.
a. Nutrients and waste materials are carried by blood dissolved in the ______________.
A. Red blood cell
B. Plasma
C. Cytoplasm
D. Haemoglobin
b. Most people have a pulse rate of 60-100 beats per minute. If a person counts 20 pulses in 10 seconds his pulse
rate will be?
A. 130 bpm
B. 120 bpm
C. 140 bpm
D. 150 bpm
c. Which of the following is not the organ of breathing system?
A. Trahea
B. Qesophagus
C. Bronchus
D. Lungs
d. Which of the following statements is not true about exhalation process?
I. Diaphragm and intercostal muscle relax
II. Ribs move upward and outward
III. Size of thorax increase
A.I and II
B. I, II and III
C. II and III
D. None of them
Q2. Answer the following questions
a. What is meant by systemic and pulmonary circulation?
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b. Exercise increases the breathing rate of a person. Explain why?
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c. How are muscle cells adapted to their function?
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Q3. State one point of difference between the following terms
a. Arteries and Capillaries
b. Respiration and breathing
c. Larynx and Pharynx
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Q4a. Name the labelled parts of the human breathing system.
b. Draw the diaphragm muscle in the given diagram showing the process of inhalation.
1. ______________________
2. ______________________
3. _______________________
4. _______________________
Q5a. Complete the labels in the diagram using words below:
Artery Capillaries
- lung
- muscle
- vein
b. Does a goat have a single or double circulatory system? Give a reason for your answer.
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Q6. Name the labelled blood vessels of the human heart. Also state the function of each of them. Also label the four
chambers of heart.
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