cells and magnification

Question 1

what is a cell ?

Answer 1

basic building block of all organisms

Question 2

what is a tissue?

Answer 2

a group of cells with a similar structure and function
e.g. muscle tissue

Question 3

what is an organ?

Answer 3

a group of tissues that work together
e.g. the heart

Question 4

what is a organ system?

Answer 4

groups of organs working together to perform a job
e.g. circulatory system

Question 5

what are plasmids?

Answer 5

a ring of DNA

Question 6

what is the equation for magnification?

Answer 6

magnification= size of image
——————–
size of real object

Question 7

what is resolution?

Answer 7

the ability to distinguish two objects as seperate

Question 8

what is magnification?

Answer 8

how much bigger the image is compared to the actual size of the object

Question 9

how can you turn micrometres (um) into centimetres?

Answer 9

x by 10^6

Question 10

how can you turn millimetres (mm) into micrometres (um)?

Answer 10

x 10^-3

Question 11

order in size metres (m), centimetres (cm), millimetres (mm), micrometres (um) and nanometres (nm)

Answer 11

metres centimetres millimetres micrometres nanometres