Respiration

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  • Created by: joshd
  • Created on: 14-03-14 16:27
What is respiration and how is it used?
Respiration is the process used by all living organisms to release energy from organic molecules (usually glucose). It is how all living things get energy from food.
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Define respiration fully.
RESPIRATION is the process of BREAKING DOWN GLUCOSE TO RELEASE ENERGY, which goes on IN EVERY LIVING CELL.
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What is aerobic respiration and describe it's efficiency.
Respiration using oxygen ('aerobic' means 'with air'). It's the most efficient way to release energy from glucose.
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What is the word equation for aerobic respiration?
Glucose + Oxygen = Carbon Dioxide + Water (+ENERGY)
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What does the circulatory system carry, in what?
Glucose, oxygen and CO2 around the body in the blood.
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Where does the glucose needed for respiration come from?
The glucose comes from breaking down food in the digestive system.
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Describe about oxygen and CO2 with respiration (where it comes from, etc.)
The oxygen comes from air breathed into the lungs. CO2 is breathed out.
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What are the smallest blood vessels in the body and what in the body have them and why? What do they take away?
The smallest blood vessels in the body are CAPILLARIES. All the cells in the BODY have capillaries nearby to supply them with glucose and oxygen + take away the waste carbon dioxide.
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What do these substances move between and by what process?
These substances move between the cells and the capillaries by diffusion.
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What is diffusion?
DIFFUSION is the MOVEMENT OF PARTICLES from an area of HIGHER CONCENTRATION to an area of LOWER CONCENTRATION.
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What happens when cells respire and what does this mean? What's the difference with blood?
When cells respire, they use up oxygen and glucose, so the concentration of these inside the cells is low. The concentration of these substances in the blood is higher, so they diffuse from the capillaries into the cells.
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What do cells produce when they respire and what does this mean?
When cells respire they produce lots of carbon dioxide, so the concentration of this in the cells is high. This means carbon dioxide diffuses from the cells into the blood, where the concentration is lower.
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Describe the trend between concentration and diffusion.
The BIGGER the difference in concentration, the FASTER the rate of diffusion.
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Other cards in this set

Card 2

Front

Define respiration fully.

Back

RESPIRATION is the process of BREAKING DOWN GLUCOSE TO RELEASE ENERGY, which goes on IN EVERY LIVING CELL.

Card 3

Front

What is aerobic respiration and describe it's efficiency.

Back

Preview of the front of card 3

Card 4

Front

What is the word equation for aerobic respiration?

Back

Preview of the front of card 4

Card 5

Front

What does the circulatory system carry, in what?

Back

Preview of the front of card 5
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