topic 1

Question 1

what is magnification

Answer 1

magnification is the ability to make an object appear larger than it actually is

Question 2

whats resolution

Answer 2

resolution is the ability to see detail

Question 3

how do u prepare a microscope slide

Answer 3

add a drop of water onto the centre of the slide
peel of a layer of onion epidermal tissue and place onto the water. this should be a thin layer so individual cells easier to see
carefully lower the cover slip at an angle, this helps to prevent air bubbles from being produced

Question 4

a light microscope has how many lenses and what do they do

Answer 4

a light microscope has 2 lenses
the eyepiece lens is the lens u look down this usually magnifies specimen by either x4, x10 or x40

Question 5

if u use the x4 (lowest powered objective lens) the total magnification will be…

Answer 5

(4x10) = 40

Question 6

how do u use a microscope

Answer 6

secure the slide onto the stage using the clips
select the lowest powered objective lens
move the coarse focus wheel so the stage is just under the objective lens
look down the eyepiece lens and slowly rotate the coarse focus wheel to form a rough image
use the fine focus wheel to form a sharper image

Question 7

what should all biological drawings have

Answer 7

there should be a title and magnification should be stated
continuous lines/no sketching
no shading
label the correct parts which you can see

Question 8

whats stage 1 of the cell cycle

Answer 8

stage one occurs before the cell can divide, 2 events occur in stage 1 of the cycle 1, the cell grows in size