1. Define the following terms: Metabolism:
Metabolism:
Autotrophic:
Heterotrophic:
The sum total of ALL chemical reactions in our cells. This includes the breaking down of our food (digesting) and the using of that food to make new substances for the cell.
Organisms that make their own food/sugars through the process of photosynthesis.
Organisms that consume other organisms

2. Gets absorbed into our blood and taken to every cell in our body.
Breathing/Respiration is when we inhale air that contains oxygen and we exhale air that contains carbon dioxide.
Where does the oxygen go once we inhale and fill up our lungs?
Where does the carbon dioxide come from that we exhale?
Cellular respiration is the process of breaking down sugar into energy. This process uses sugar and oxygen and produces carbon dioxide and energy.
Gets absorbed into our blood and taken to every cell in our body.
It comes from our cells. It is a waste product that is formed when our cells break down sugar and oxygen for energy during cellular respiration.

3. Cell Respiration
E = ATP , a molecule that stores ENERGY for our cells to cash in to do work.

4. Energy Charged battery, stores energy
When a cell needs energy it can cash in an ATP molecule. The cell does this by removing a “P”. When the bond between the phosphates are broken the energy is released.
When the “P” is removed, energy is released and ATP becomes ADP, a second “P” can be removed for more energy and it can become AMP . It is like rechargeable battery that now needs charged again.
In order to recharge the battery or to bond the “P” back on we need to eat carbs/sugars. The energy in the carbs is now stored in the bonds of the “P’s”.
Energy

5. 100% charged battery
0% charged battery
Cell cashes in ATP for energy to work.
ATP -> remove P -> ADP
All the ATP is cashed in and is now ADP, cell can’t get any more energy to work.
Person now has to eat more carbs, the energy provided by the carbs reattach the P to ADP and makes ATP.

6. 1 2 3
Test tube #1
5 grams yeast
5 grams sugar
25ml warm water
Test tube #2
5 grams yeast
NO sugar
25 ml warm water
Test tube # 33
Test tube #4
-sample 2
5 grams yeast
NO sugar
NO warm water

8. 0 minutes
5 minutes
10 minutes
15 minutes
20 minutes
25 minutes
Test tube 1
Test tube 2
Test tube 3