Approximate sizes of eukaryotic, prokaryotic & virus cells (EDEXCEL)

Watch
Yme2day
Badges: 12
Rep:
?
#1
Report Thread starter 3 years ago
#1
Does anyone happen to know if I need to remember the average sizes of the aformentioned cells for the EDEXCEL exam board.

I checked the spec and found the following quote:

'Be able to compare the structure of bacteria and viruses.'

And similar quoting in reference to eukaryotic cells. Now in all the revision guides i've seen they mention the sizes of the cells too, but never have i seen it in a markscheme or exam question.

So should i learn their sizes or not?

Many thanks
0
reply
Yme2day
Badges: 12
Rep:
?
#2
Report Thread starter 3 years ago
#2
(Original post by Yme2day)
Does anyone happen to know if I need to remember the average sizes of the aformentioned cells for the EDEXCEL exam board.

I checked the spec and found the following quote:

'Be able to compare the structure of bacteria and viruses.'

And similar quoting in reference to eukaryotic cells. Now in all the revision guides i've seen they mention the sizes of the cells too, but never have i seen it in a markscheme or exam question.

So should i learn their sizes or not?

Many thanks
bump
0
reply
macpatgh-Sheldon
Badges: 20
Rep:
?
#3
Report 3 years ago
#3
Sizes of both prokaryotic organisms as well as of eukaryotic cells of different e.g. human tissues vary widely, so it is just worth remembering a few classical examples.

A normal human erythrocyte is about 7u (7 micrometres) in diameter.

A squid axon is nearly a millimetre in diameter and therefore is useful in researching neurons. A human pyramidal tract neuron (motor neuron that supplies muscles) can have an axon up to a metre long (extending from the brain to the first synapse).

Even these figures are probs not in the syllabus, but there is no stipulation anywhere that suggests that it is illegal to learn more than the syllabus requires.

M
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Should 'Mental health support' be included on league tables?

Yes (216)
74.74%
No (73)
25.26%

Watched Threads

View All
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise