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Home  arrow Chapter 2  arrow Grade 8 Chapter 1 Review Quiz

Grade 8 Chapter 1 Review Quiz

This activity contains 10 questions.

Question 1.
The cell theory is a collection of assumptions about the cells of all living things. Which is the following is not part of the cell theory?

End of Question 1

Question 2.

It may seem strange at first, but the correct method for viewing objects with a compound light microscope is to keep both eyes open at all times. This prevents squinting, which can tire out your face muscles after just a few minutes.

What is the name of the part of the compound light microscope that you look through with your eye?

End of Question 2

Question 3.
There are several very important rules that must be followed when using a compound light microscope. Which of the following is an example of an incorrect technique when using this piece of equipment?

End of Question 3

Question 4.
What is part number 7 in this photograph of a compound microscope?


End of Question 4

Question 5.
Which organelle is not found in animal cells?

End of Question 5

Question 6.
This is an electron micrograph of two identical organelles in lung tissue.


These organelles break down food and release its stored energy to fuel cell activities. What are they?

End of Question 6

Question 7.

Sometimes when a person is very ill their kidneys will stop functioning and they need to be put on dialysis. This is a diagram describing what happens during dialysis. The large red cells on the left are blood (containing disc-shaped red blood cells), blue is dialysis fluid and yellow is the membrane (or filter). Healthy kidneys filter out waste products in our blood. Dialysis does the same job.


As shown in the diagram, the yellow membrane is ______ to red blood cells.
End of Question 7

Question 8.

This is a diagram showing how diffusion works across a cell membrane. The top of the image is outside the cell, the bottom is inside the cell, and a cell membrane runs across the middle.


The diagram doesn't say what the little blue particles might be. What are they least likely to be?
End of Question 8

Question 9.

These are red blood cells in three different kinds of solutions. In a hypertonic solution, the cells shrivel up. In a hypotonic solution, the cells grow and may explode. In an isotonic solution, the cells remain a normal size. Any size changes are due to water moving into and out of the red blood cells.


Notice the arrows in the lower part of the diagram. What process is being shown here?
End of Question 9

Question 10.

These three cells are stained with fluorescent blue Hoechst stain.


The Hoechst cellular stain makes DNA appear bright blue. DNA fills an organelle which functions as the cell's brain. Which cell organelle is DNA found in?
End of Question 10

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