B3

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  • Created by: Lizzie
  • Created on: 11-05-13 14:20
What is osmosis?
the diffusion of water across a partially permeable membrane
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when might active transport occur?
for glucose to be reabsorbed by the kidney tubules
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Sports drinks contain water to...
replace water lost when sweating and rehydrate body cells
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Wich of these is NOT a reason why someone might require a breathing aid?
if the coronary arteries have become narrowed due to fatty deposits
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How does gas diffuse in and out of leaves?
through tiny holes called stomata
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What is the transpiration stream?
the movement of water through the plant
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what does the vena cava do?
Brings venuous blood from the head and body to the right atrium
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what are red blood cells?
bio-concave discs, with no nucleus, with carry oxyhaemoglobin
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What are platelets?
fragments of cells which clot at the site of the wound
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What are white blood cells?
part of the body's defence system to fight microoganisms
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What is plasma?
fluid to transport cells, and other substances such as solutes, urea and CO2
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What are stents used for?
to keeps blood vessels, eg. the coronary arteries if they have become blocked due to fatty deposits
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which tissue transports mineral ions and water from the roots to the stem, leaves and flowers?
xylem tissue
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What is urea?
the breakdown of amino acids, made in the liver
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how is carbon dioxide sequestered?
Dissolved into the oceans and taken in by plants
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Wich of these is NOT a feature of industrial fermenters?
airtight for anaerobic fermentation
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Other cards in this set

Card 2

Front

when might active transport occur?

Back

for glucose to be reabsorbed by the kidney tubules

Card 3

Front

Sports drinks contain water to...

Back

Preview of the front of card 3

Card 4

Front

Wich of these is NOT a reason why someone might require a breathing aid?

Back

Preview of the front of card 4

Card 5

Front

How does gas diffuse in and out of leaves?

Back

Preview of the front of card 5
View more cards

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