B1.1.1 - Observing Cells

Question 1

Identify the missing labels.

Answer 1

Question 2

Describe how you would observe an object using a microscope.

Answer 2

1. Move the stage into its lowest position.
2. Place object on the stage.
3. Set objective lens to lowest magnification.
4. Look through eyepeice and turn coarse focus knob until you see the object.
5. Turn the fine focus knob until object comes into focus.
6. Repeat ssteps 1-5 using different objective lenses.

Question 3

When we look carefully at an object we say that we are making an…

Answer 3

observation

Question 4

How can we see cells?

Answer 4

We can use a microscope

Question 5

Identify the missing labels.

Answer 5

Question 6

Can we see cells with the naked eye?

Answer 6

No - they are too small

Question 7

How do we calculate total magnification of a microscope?

Answer 7

Eyepiece lens x Objective lens

Question 8

Give an example of an organism that is made from just one cell.

Answer 8

A bacterium

Question 9

All living organisms are made up of…

Answer 9

cells

Question 10

Identify the missing labels.

Answer 10

Question 11

Identify the missing labels.

Answer 11

Question 12

Identify the missing labels.

Answer 12

Question 13

What is an organism?

Answer 13

Any living thing e.g. humans, plants etc.

Question 14

How can we prepare an object to see it through a microscope?

Answer 14

The object must be very thin so that light can travel through it.

The object may need to be stained with a coloured dye.

Question 15

Identify the missing labels.

Answer 15

Question 16

Identify the missing labels.

Answer 16