Energy Transfers In And Between Organisms

Question 1

Where does the LDR place?

Answer 1

Thylakoid membrane

Question 2

Where does the LIR take place?

Answer 2

Stroma

Question 3

Describe the structure of a chloroplast

Answer 3

Double membrane
Thylakoids
Granum = stack of thylakoid
Stroma

Question 4

Describe what happens during photoionisation in the light-dependent reaction.

Answer 4

The electrons become exited by light and raise up an energy level then leave the thylakoid membrane

Question 5

Name the two products of the light-dependent reaction that are required for the light independent reaction

Answer 5

NADPH
ATP

Question 6

What chemicals are needed for the light-dependent reaction?

Answer 6

NADP,ADP, Pi and water

Question 7

Where does glycolysis take place?

Answer 7

Cytoplasm

Question 8

Describe the process of glycolysis. 4marks

Answer 8

Glucose is phosphorylated by adding a phosphate to become glucose phosphate using an ATP molecule
Triose phosphate is the oxidised to form two molecules of pyruvate
NADH is formed
Net gain of ATP

Question 9

Where does the link reaction take place?

Answer 9

Matrix of mitochondria

Question 10

Where does the kerbs cycle take place?

Answer 10

Matrix

Question 11

Where does oxidative phosphorylation take place?

Answer 11

Electron transfer chain