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Biology ­ B7
Revision…read more

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Respiration is the process of releasing
energy from glucose, which happens
constantly in every cell.
Anaerobic respiration is when athletes
exercise for a short amount of time so don'
t breathe ­ they respire without oxygen.
Aerobic respiration ­ uses oxygen
Glucose + oxygen carbon dioxide +
water (+ energy)…read more

Slide 3

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It carries the energy released during
respiration to the places where energy is
ATP is a small molecule that's easily
transported around cells.
Energy released from both aerobic and
anaerobic respiration is used to produce
ATP is the `energy currency' of living
things.…read more

Slide 4

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How ATP carries energy:
1. ATP is synthesised from another molecule
(called ADP) using the energy released by
the breakdown of glucose during
2. ATP moves to the part of the cell that
requires energy.
3. It's then broken down to ADP and this
releases energy where it's needed.…read more

Slide 5

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Energy required for, e.
g. Muscle contraction,
released by breaking
down ATP.
Energy released during
respiration, used to
convert ADP to ATP.…read more

Slide 6

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Respiration and Exercise...
Muscles need energy (ATP) from respiration
to contract. When you exercise some of your
muscles contract more frequently, so you
need more energy.
L energy comes from increased
The increase in respiration means you need
to get more oxygen and glucose into the
Your breathing rate increases to get more
oxygen into the blood.
Your heart rate increases to get glucose and
oxygenated blood around the body to your…read more

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