Biology AS Unit One OCR

Little facts that may have been overlooked but can be needed in an exam

  • Created by: Eloise
  • Created on: 10-05-10 16:14
What is the resolution of a TEM (transmission electron microscope) and a SEM (scanning electron microscope)?
0.2nm
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What function do mesomes have in a prokaryotic cell?
Making ATP
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In prokaryotic cells, what is the cell wall made of?
Peptidoglycan
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What is the arrangement of a flagellum?
9+2
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What is the name of the protein found in microtubules?
Tubulin
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What is the thickness of a microtubule?
25nm
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What is the name for a cell with a receptor for a hormone molecule?
Target cell
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In blood cells the following reaction takes place: CO2 + H20 = H2CO3. What is the name of the enzyme catalysing this reaction?
Carbonic anhydrase
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Describe the circuit of a double circulatory system
heart-->body-->heart-->lungs--> heart
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How thick is the phospholipid bilayer?
7-10nm
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Cytokenesis with animal cells form:
Cleavage furrow
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Are blastocysts:
Totipotent
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When chromosomes supercoil in prophase, how thick are they? (compared to 30nm in chromatin)
500nm
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What is the resolution of a light microscope?
200nm
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Other cards in this set

Card 2

Front

What function do mesomes have in a prokaryotic cell?

Back

Making ATP

Card 3

Front

In prokaryotic cells, what is the cell wall made of?

Back

Preview of the front of card 3

Card 4

Front

What is the arrangement of a flagellum?

Back

Preview of the front of card 4

Card 5

Front

What is the name of the protein found in microtubules?

Back

Preview of the front of card 5
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Comments

Emily Summers

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Good (:
But in our OCR books everything's in micrometres, c':

Risha

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ver good thank you, however the measurements are confusling :)

Moira

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The measurement stuff I'm really bad at remembering >< Need to get cracking on this...

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