1. Warm-Up (10/9)
On the piece of white paper from the back, answer the following question.
Name
Date
Period
What happens to an enzyme placed at high temperatures? Why do you feel bad when you have a fever?

2. Question!
You eat about 6 pounds of food every day. Your poop and pee total to about 4 pounds.
Do you actually gain 2 pounds every day? What happens to those 2 pounds?

3. Thermal Homeostasis
Food (carbohydrates, lipids, proteins) are made essentially out of many carbon atoms bound together.
Metabolism:
Catabolism: the breaking up of carbon- carbon bonds
Anabolism: the putting together of carbon-carbon bonds
Catabolic reactions are exergonic, Anabolic reactions are endergonic.

5. Thermal Homeostasis Energy is stored in carbon-carbon bonds of food.
Metabolizing food means breaking apart (catabolizing) the bonds to release energy and releasing the carbon matter as CO2 in your breath.

6. Question!
So what happens when you consume more food energy than your body needs?
And what would happen if you consumed less energy than your body needs?

7. Thermal Homeostasis Energy is stored in carbon-carbon bonds of food.
Metabolizing food means breaking apart (catabolizing) the bonds to release energy and releasing the carbon matter as CO2 in your breath.
Released energy is either coupled to ATP production or used to produce heat.

8. Endothermy
Our bodies undergo exergonic reactions for the sole purpose of releasing free energy.
If not coupled to an endergonic reaction (such as ADP+PATP), it will be released as heat.

9. Question!
Why is it important for our bodies to stay warm – er, I mean, stay at a constant temperature?

10. Seasonal Reproduction
Plants and animals have a mating season so that there will be a birthing season, and reproductive success (ie, kid grows up and has kids) can be assured
Ewwwwwww!
Autumn
Awwwwwww!
Spring

11. Closure (10/9)
On the piece of white paper from the back, answer the following question:
Name
Date
Period
Why is thermal homeostasis important for the functionality of enzymes?
Scale 1 – 10