autotrophs, heterotrophs and energy

Question 1

what are Autotrophs:

Answer 1

*Have chloroplast which use physical energy from sunlight to create stored chemical energy
*produce their own energy and food

Question 2

what are Heterotrophs:

Answer 2

*require another organism to give them food and energy

*get chemical energy from other sources to create physical energy

Question 3

photosynthesis.

Answer 3

*light physical energy to chemical energy

6CO2 + 6H20 —> C6H12O6 + 6O2
Carbon dioxide + water —-> Glucose + Oxygen

Question 4

ATP

Answer 4

*Adenine Tri (3) phosphate (ATP) is stored energy within the cell, particularly the mitochondria

• Adenine is bonded with a ribose sugar

*Cells are continuously used and producing
ATP in what is known as the ATP cycle

• ATP is used to perform cellular functions

Question 5

ATP cycle

Answer 5

*Energy required to fuel this process, that being ATP comes from cellular respiration

*In the ATP cycle the third phosphate bonded is hydrolyzed by water and broken off as a new bond form which in the process releases energy for the cell.

*This produces ADP which only has two phosphates.

*Then using energy from food (breaking down big molecules like glucose) another phosphate group is attached to the ADP for ATP to continue the cycle by reforming ATP.

*This cycle is essential as if ADP did not turn back into ATP then the cell would run out of energy to carry out cellular functions.