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Year 8 Unit 7 (Cells) & 8 (Body systems) Revision Sheet
Complete the following questions in you NOTEBOOK (Any diagram labelling or completing
of tables can be completed on the sheet):
1.
Explain the role of veins and arteries in your body.
2. Label: the inferior and superior vena cava, aorta, left and right ventricle and the left
and right atrium on the attached diagram of the heart.
3. On the above diagram, indicate in blue the passage of contain de-oxygenated blood
through the heart and shade in red the passage of oxygenated blood through the
heart.
4. What is the name of the vein that carries blood to the heart?
5. Explain why the left side of the heart is thicker than the right side of the heart.
6. What are the scientific terms for White blood cells and Red blood cell?
7. Explain the role of Red blood cells and the White blood cells in the body.
8. Predict what will happen to the body if the red blood cell becomes infected by disease?
9. Predict what will happen to the body if the white blood cell becomes infected by
disease?
10. What is the role of the excretory systems?
11. What organs make up the excretory system?
12. When food enters the small intestine it has a high concentration of glucose to provide
the body with energy. The glucose passes through the small intestine wall (high
concentration) to the blood (low concentration). What is the name given to this
process?
13. Explain how the digestive system and circulatory system work together to transport
nutrients around the body.
14. Draw a flow chart/mind map for the following systems:
a. Reproductive systems
b. Digestive system
c. Excretory system
d. Circulatory system
e. Respiratory system
15. Complete the flow chart (in your books) outlining cell organisation in animals and
plants
C_ _ _
T_ _ _ _ _  O _ _ _ _  S_ _ _ _ _  O_ _ _ _ _ _ _
Arrange the following items underneath the flow diagram as to whether they are a
Cell/tissue etc.
Root
stem
leaves
phloem
epidermis
guard
sperm
ovum
skin
stomach
heart
respiratory
excretory
dog
human
tree
16. What is photosynthesis in plants? Why does it occur in plants only? Write out the
equation for photosynthesis and then highlight the 2 gases involved.
17. What tubes carry food produced in photosynthesis?
18. Animals obtained their energy from respiration. What organelle makes energy for
cells to function? Write the equation for respiration?
19. Label the parts of the microscope AND then draw the table in your books and
complete:
a
f
e
b
d
c
Microscope part
a)
b)
c)
d)
e)
f)
Function
20. When you look through the eyepiece you see the Field of View, it is how much of the
object you can see. When you increase the magnification what happens to the field of
view?
21. Draw your answer below:
X40
x100
x400
22. What is magnification?
23. Complete the following magnification table:
Eyepiece
Objective Lens
X10
X40
X10
Magnification
X200
X10
X10
24. What are the 3 types of variables in an experiment?
25. People drink coffee to wake themselves up. It is believed to be a stimulant. Design an
experiment to see if the heart rate increases after drinking coffee.
a. Write a scientific question for the experiment.
b. Complete the variable table:
I_ _ _ _ _ _ _ _ _ _
D_ _ _ _ _ _ _ _
C_ _ _ _ _ _ _ _ _
Variable
Variable
Variable
(What will I _ _ _ _ _ _)
(What will I _ _ _ _ _ _ _)
(What will I keep the _ _ _ _)
c.
Write a method outlining how you would complete this experiment
d. Design a data table
e. Predict what you think will happen?