sizes of cells

Question 1

Which type of cells are smaller?

Prokaryotic or eukaruyotic?

Answer 1

Prokaryotic

Question 2

All sizes in science are based on what unit?

Answer 2

metre

Question 3

what does the word ‘centi’ mean?

Answer 3

1/100th of a metre

Question 4

what is the standard form of 1 centimetre?

Answer 4

1cm = 1 x 10^-2m.

Question 5

Dividing 1cm in 10 gives us…

Answer 5

10millimetres (mm)

Question 6

what does the word ‘milli’ mean?

Answer 6

1/1000th of a metre

Question 7

what is the standard form of 1mm in metres?

Answer 7

1mm = 1 x 10^-3m

Question 8

Dividing 1m by 1 000 000 gives us

Answer 8

1 000 000 micrometres/ μm)

Question 9

what does the word ‘micro’ mean?

Answer 9

1/1 000 000th of a metre

Question 10

what is the standard form of 1μm in metres?

Answer 10

1μm = 1 x 10^-6m

Question 11

what is the size of a typical human cell?

Answer 11

10-20μm

Question 12

looking at cells, what would a good unit be to measure with?

Answer 12

micrometres (μm)

Question 13

what does the word ‘nano’ mean?

Answer 13

1/ 1 000 000 000th of a metre

Question 14

what is the standard form of 1 nm in metres?

Answer 14

1nm = 1 x 10^-9m

Question 15

where is the protein haemoglobin is found?

Answer 15

In red blood cells

Question 16

What is the size of 1 molecule of haemoglobin?

Answer 16

5nm