Question

True or false Chemical energy is stored in the bonds of molecules. Heat energy is a very useful form of energy. Biosynthesis part of metabolism uses ATP for energy. Electron transport chains are located in the membrane of mitochondria and chloroplasts. Cells produce only what they require no more or no less. Cellular respiration captures about 40% of the energy in glucose for ATP production. The two major energy producing pathways are aerobic respiration and ermentation. What specific pathways occur in each? Which process makes the most ATP?

Answer 1

Answer:

1. Chemical energy is stored in the bonds of molecules—True

2. Heat energy is a very useful form of energy—False (heat energy is waste energy)

3. Biosynthesis part of metabolism uses ATP for energy—True

4. Electron transport chains are located in the membrane of mitochondria and chloroplast –False (electron transport chain are located in the inner membrane of mitochondria & thylakoids membrane but not in chloroplast membrane)

5. Cells produce only what they require-no more or no less. ---False

(cell produces more energy than they require and excess energy is stored in the form of ATP).

6. Cellular respiration captures about 40% of the energy in glucose for ATP production---True

8).

During aeroic respiration glucose is completely oxidized to CO2, H2O & 36ATP (energy).

During fermentation glucose is incompletely oxidized to alcohol & 2ATP.

Aerobic cellular respiration produces 36 ATP (more energy) than fermentation that produces 2ATP (less energy).

9). NAD+ is a coenzyme that plays a vital role in transferring energy released from glucose and fatty acids to mitochondria so that it can be converted into cellular energy.

10). Energy is neither created nor destroyed. The least useful energy is thermal energy.