1. KREBS CYCLE & ELECTRON TRANSPORT Chapter 9-2

2. CARBOHYDRATES SUPPLY ENERGY
Remember !
CARBOHYDRATES SUPPLY ENERGY
Cells burn GLUCOSE
for their energy needs
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3. EXERCISE and ENERGY ________term exercise like 50 yd dash
EXERCISE and ENERGY
________term exercise like
50 yd dash
Cells keep only enough ATP for a few
Seconds of activity.
Once this ATP is used up muscle cells
can use _____________ fermentation for
about ______________ of energy.

4. EXERCISE and ENERGY Once race is over, _______________
must be broken down using oxygen.
A quick sprint builds up an
OXYGEN debt that
must be repaid by
______________________
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5. LONGER EXERCISE and ENERGY
For exercise longer than 90 seconds
_____________________ is the only
way to make enough ATP.
Cellular respiration gets ___________ from glucose than fermentation.
Well conditioned athletes must pace themselves during a long race.

6. What happens in a long race when the body’s glucose all is used up?
Animal cells store
GLUCOSE as
_____________
to use later.
REMEMBER
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7. EXERCISE and ENERGY
(LONGER term energy)
________________ store glucose as ________________ which can be broken down into glucose to supply energy for_______________
of activity.

8. DID YOU EVER CARBO LOAD? Eating a high carbohydrate meal
before a big game or race
fills up your _____________
reserves in your muscles

9. That’s why aerobic exercise must continue for longer than
EXERCISE and ENERGY
(LONGER term energy)
After glycogen stores are used up the body begins to break down ________
That’s why aerobic exercise must continue for longer than
20 minutes if you want to
lose weight!
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