All Subjects
AQA4 Fragen
Biology MCQs
Practice Biology multiple-choice questions for AQA competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.
Nucleus
Ribosome
Mitochondrion
Cell membrane
ErklärungMitochondria are the sites of cellular respiration where ATP (energy) is produced for the cell.
Diffusion
Osmosis
Active transport
Mitosis
ErklärungOsmosis is the specific term for the movement of water molecules across a semi-permeable membrane from a high to low concentration.
Nucleus
Ribosome
Mitochondrion
Chloroplast
ErklärungMitochondria are the sites of aerobic respiration, where energy is produced in the form of ATP.
Nucleus
Ribosome
Mitochondrion
Vacuole
ErklärungMitochondria are the site of cellular respiration, where ATP (energy) is produced for the cell.
Frequently Asked Questions
Are these Biology MCQs free?
Yes. Every Biology MCQ on this page is free to practice, including the correct answer and explanation.
Do these include past-paper questions?
Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.
Which exams do these Biology MCQs help with?
They are aimed at AQA and related Pakistani competitive exams that test Biology.
How should I practice subject-wise MCQs?
Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.