EASY
Lower Secondary Stage 8
IMPORTANT
Earn 100

From where to where does plasma carry the following substances?

a) urea

b) carbon dioxide

c) digested food substances

Important Questions on Respiration and Circulation

MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 9>Q 19

Sketch and label a diagram of the circulatory system. 

EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 9>Q 20
Which liquid do mammals produce, which contains a lot of urea?
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 9>Q 21
Which part gives blood its colour?
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 9>Q 22
Draw a table to show what the different parts of the blood do.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 9>Q 23
  1. Describe how can a microscope be used to observe some blood cells. 
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 9>Q 24
How are red blood cells adapted to contain as much haemoglobin as possible? Why is this useful for red blood cells?
MEDIUM
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Exercise 9>Q 25
Compare to the number of red blood cells, how many white blood cells are in blood? Explain.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 2 - Respiration and Circulation>Investigating changes in pulse rate>Q A1
How does your pulse rate change during exercise?