Cells and magnification

Question 1

give 3 differences between an animal and a plant cell (Eukaryotes)

Answer 1

Plant cells have Permanent vacuole containing Cell sap , mix of sugars water and salts
plants have Chloroplasts , animals dont
Plants have Cell WALL but animal cells do not

Question 2

Give 3 differences between a eukaryotic and Prokaryotic cell

Answer 2

Prokaryotic (bacteria cells) have plasmids - extra circular genes for antibiiotic resistance
Circular strand of DNA to reproduce and survive
Flagella - tail like to propel bacteria

Question 3

do bacterial cells have a cell wall

Answer 3

Yes bacterial cells have a cell wall and a cell membrane

Question 4

give all units for microscopes

Answer 4

nanometres(nM) /1000 —–> Micrometers(Um) —–> milimeters(mm) —–> Meters
Divide by 1000 every time to go from nano to micrometers

Question 5

What is resolution

Answer 5

the shortest distance between 2 points on an object that can still be distinguished as 2 seprate images without appearing blurry - a measure of how detailed the image is

Question 6

Instructions of using a microscope

Answer 6

1. Place slide on stage and secure with clips if there
2. then select lowest power objective lens and move it using coarse focusing dial to get it as close as possible to slide without touching
   3.then look in eyepiece lens and turn the coarse focus away from slide until it comes into focus
   4.turn fine focus until image clear
   to find magnification multiply eyepiece lens magnification by the objective lens multiplication