Energy and Metabolism

Question 1

What is the purpose of cellular respiration?

Answer 1

To create the energy required for organisms to recycle adenosine triphosphate (ATP) from glucose molecules.

Question 2

Where in the cell does photosynthesis occur?

Answer 2

the chloroplasts

Question 3

How does photosynthesis occur?

Answer 3

Photosynthesis is an enzyme controlled series of chemical reaction occurring in the chloroplast (which can be found in the mesophyll) that uses light energy to synthesise glucose.

Question 4

What is the chemical equation for photosynthesis?

Answer 4

6CO2 + 12H2O –> C6H12O6 + 6O2 + 6H2O

carbon dioxide + water –> glucose + oxygen + water

Question 5

Photosynthesis Light-dependent reaction

Answer 5

Occurs on the thylakoids in the chloroplasts. Light energy is absorbed by chlorophyll and then used to split water to produce oxygen and to form ATP and NADPH from ADP.

Question 6

Photosynthesis light-independent reactions

Answer 6

NADPH and ATP are released into the stroma of the chloroplast to form NADP+ and ADP +Pi)

Question 7

What is the relationship between light independent and dependent reaction?

Answer 7

The light independent reactions require the products of the light dependent reactions in order to react.

Question 8

What are the two types of cellular respiration?

Answer 8

Aerobic (Requiring oxygen) and anaerobic (not requiring oxygen)

Question 9

What is the chemical equation for aerobic respiration?

Answer 9

C6H12O6 + 6O2 –> 6CO2 + 6H2O + 36-38ATP

Question 10

What is the chemical equation for anaerobic respiration

Answer 10

C6H12O6 –> 2C3H6O3 + energy

Question 11

What is glycolysis?

Answer 11

The first step in cellular respiration respiration. It occurs in the cytoplasm and splits glucose to create 2 molecules of ATP, pyruvate and NADH.