Cells Energy

Question 1

Equation of photosynthesis

Answer 1

CO2 + H2O + Energy = C6H12O6 + O2

Question 2

What are pigments?

Answer 2

Molecules that absorb visible light. They absorb certain wavelengths and reflect others. Chlorophyll absorbs all colours except green and yellow

Question 3

Chlorophyll and Process

Answer 3

It is embedded in thylakoids, which contain an enzyme that splits H2O into hydrogen and oxygen ions. Oxygens form O2. Hydrogen accumulates in thylakoids creating a [ ] gradient that provides energy for ATP. CO2 from the atmosphere comes to make organic compounds (glucose) through the Calvin Cycle.

Question 4

Cellular Respiration Formula

Answer 4

O2 + C6H12O6 = CO2 + H2O + Energy

Question 5

Anaerobic Respiration

Answer 5

Occurs in cytoplasm, no oxygen present, 2 ATP Energy from Glycolysis:
Glucose passes through the membrane via a protein pump, an enzyme splits it into 2 pyruvate molecules.

Question 6

Aerobic Respiration

Answer 6

oxygen is present, occurs in cytoplasm and mitochondria, up to 36-38 ATP.
Pyruvate and O2 can go through the mitochondria in 2 cycles.
1. Kreb Cycle: 2 ATP, lots of CO2 and H2O
2. The Electron Transport Chain: 32-34 ATP, some O2 and H2O.