1. A small water plant (elodea) was placed in bright sunlight for five hours as shown. Bubbles of oxygen gas were observed being released from the plant.
What substance did the plant most likely absorb from the water for the process that produces the oxygen gas?
dissolved nitrogen (3) an enzyme
(2) carbon dioxide (4) a hormone
Since oxygen gas is being released, it can be inferred that the plant is
producing glucose (3) releasing energy from water
(2) making protein (4) carrying on active transport

2. Releasing energy from food to make ATP
Cellular Respiration
Releasing energy from food to make ATP
Energy

4. Cellular respiration
Plants store solar energy in glucose.

5. Cellular respiration
Plants store solar energy in glucose. Energy released at night (and winter) for cells to use.

6. Cellular respiration
Plants store solar energy in glucose. Energy released at night (and winter) for cells to use. Glucose bonds have too much energy for cells, so it is released as ATP (Adenosine TriPhospate)

7. Cellular respiration
Plants store solar energy in glucose. Energy released at night (and winter) for cells to use. Glucose bonds have too much energy for cells, so it is released as ATP (Adenosine TriPhospate) All cells of All organisms need ATP energy.

8. Cellular respiration
Plants store solar energy in glucose. Energy released at night (and winter) for cells to use. Glucose bonds have too much energy for cells, so it is released as ATP (Adenosine TriPhospate) All cells of All organisms need ATP energy. Autotrophs do both photosynthesis & respiration.

9. Cellular respiration O2 + C6H12O6 Enzymes ATP + CO2 + H2O
Plants store solar energy in glucose. Energy released at night (and winter) for cells to use. Glucose bonds have too much energy for cells, so it is released as ATP (Adenosine TriPhospate) All cells of All organisms need ATP energy. Autotrophs do both photosynthesis & respiration. Heterotrophs ONLY do respiration.
The overall reaction is:
O2 + C6H12O6 Enzymes ATP + CO2 + H2O

10. Mitochondria are “powerhouse” organelles that release the energy (make ATP).
Glucose +
Oxygen
ATP
Carbon Dioxide
Water

12. Fill in the letters for the overall reaction of cellular respiration.
O2 + C6H12O6 Enzymes ATP + CO H2O A B D E
Energy
Why does this occur in cells?