IB Biology HL C1.2.8 Hl Glycolysis Questions

Trace glycolysis from glucose to two pyruvate molecules in the cytoplasm, including ATP investment and payoff and reduced NAD formation in IB Biology HL C1.2.8.

Exam points

Define glycolysis as the cytoplasmic, linear breakdown of one glucose molecule into two pyruvate molecules.
Account for ATP investment and payoff in glycolysis, including the net gain of two ATP and formation of reduced NAD/NADH.
Identify phosphorylation and oxidation steps and interpret glycolysis diagrams or data using the correct intermediates and products.

[Maximum number: 3]

Glucose is converted to pyruvate during the glycolysis stage of respiration.

Figure for Question IB Biology HL C1.2.8 Hl Glycolysis Questions question 1 — IB Biology HL

(a)

On the diagram, label

[ 2 ]

(i)

with P where phosphorylation occurs.

[ 1 ]

(ii)

On the diagram, label with O where oxidation occurs.

[ 1 ]

(b)

State where in the cell glycolysis takes place.

[ 1 ]

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IB Biology HL C1.2.8 Hl Glycolysis Questions question 1

Question (a)

Question (i)

Question (ii)

Question (b)