VWO Biologie Practice Questions - Netherlands VWO Biologie - Centraal Examen and Schoolexamen - VWO Biologie Practice Questions - Netherlands VWO Biologie

Question 1

During aerobic cellular respiration in eukaryotic cells, what is the net yield of ATP produced per molecule of glucose specifically during the glycolysis stage in the cytosol?

2 ATP 4 ATP 32 ATP 36 ATP

Correct Answer:

2 ATP

Question 2

In mitochondrial oxidative phosphorylation, high-energy electrons pass through Complexes I to IV of the electron transport chain. How does this electron flow drive ATP synthesis by ATP synthase?

Electrons are directly transferred to ATP synthase to phosphorylate ADP. Protons are pumped into the intermembrane space, creating a electrochemical gradient that flows back into the matrix through ATP synthase. Protons are pumped into the matrix, causing ATP synthase to actively export ATP into the cytosol. Pyruvate is oxidized directly inside ATP synthase, releasing energy for ADP phosphorylation.

Correct Answer:

Protons are pumped into the intermembrane space, creating a electrochemical gradient that flows back into the matrix through ATP synthase.

Question 3

During the light-dependent reactions of photosynthesis in plant chloroplasts, what is the primary role of water photolysis at Photosystem II (PSII)?

To supply carbon dioxide for the Calvin cycle To replace electrons lost by the reaction center P680 and generate protons and oxygen gas To directly reduce 3-phosphoglycerate into glyceraldehyde 3-phosphate To absorb light energy and convert it into carbohydrates

Correct Answer:

To replace electrons lost by the reaction center P680 and generate protons and oxygen gas

Question 4

How does a non-competitive inhibitor affect an enzyme-catalyzed reaction compared to a competitive inhibitor?

It binds to the active site and increases Km without altering Vmax. It binds to an allosteric site, reducing Vmax while leaving Km largely unchanged. It competes directly with the substrate for active site binding, raising Vmax. It permanently degrades the substrate molecule before it can reach the active site.

Correct Answer:

It binds to an allosteric site, reducing Vmax while leaving Km largely unchanged.

Question 5

What is the primary physiological purpose of lactic acid fermentation in human skeletal muscle cells during intense anaerobic exercise?

To produce maximum ATP directly from pyruvate oxidation To regenerate NAD+ from NADH so that glycolysis can continue producing ATP To generate oxygen gas to support mitochondrial respiration To convert glucose into glycogen for long-term storage

Correct Answer:

To regenerate NAD+ from NADH so that glycolysis can continue producing ATP

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Prepare with the VWO Biologie Practice Questions - Netherlands VWO Biologie - Centraal Examen and Schoolexamen practice quiz. This question bank includes 100 questions covering blood, cells, cell, primary, and response. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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VWO Biologie Practice Questions - Netherlands VWO Biologie - Centraal Examen and Schoolexamen

This practice set contains 100 questions from the matching question bank and focuses on blood, cells, cell, primary, and response. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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VWO Biologie Practice Questions - Netherlands VWO Biologie - Centraal Examen and Schoolexamen

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