Explain oxidation of respiratory substrates and the coupled reduction of NAD as it accepts hydrogen and electrons.
Tę umiejętność sprawdzają 3 zadania wzorowane na arkuszach IB z lat 2024–2025.
Which description of a respiratory stage correctly combines carbon dioxide release with reduction of NAD? A. Pyruvate oxidation: carbon dioxide is released and NAD is reduced B. Glycolysis: carbon dioxide is released but NAD remains oxidised C. The Krebs…
A cell-biology course connects carbohydrate chemistry with energy transfer. (a) Explain how carbohydrate structures relate to cellular properties and functions, using named examples. (b) Outline diverse cellular uses of ATP, giving examples. (c) Distinguish…
In a respiratory model, a hydroxy group is converted to a carbonyl group while NAD is converted to reduced NAD: R–CH(OH)–R′ + NAD → R–C(=O)–R′ + reduced NAD. What happens to the organic substrate? A. It undergoes decarboxylation B. It is reduced by gaining…
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