OCR A-Level Biology – Multiple Choice Questions with Answers
1. Which of the rows is correct about microscopes?
Answer: C – Microscopes vary in their magnification and resolution.
2. Which bond joins monosaccharides together?
Answer: B – Glycosidic bond
3. Which row correctly identifies the role of inorganic ions in enzyme-
controlled reactions?
Answer: D
4. Which of the following statements about the genetic code is incorrect?
Answer: C – It is overlapping.
5. Which statement describes inhalation?
Answer: C – Ribcage moves upwards and outwards; external intercostal
muscles contract; diaphragm contracts.
6. Which structures are found in both prokaryotes and eukaryotes?
Answer: D – Ribosomes
7. Which time period shows ventricular systole in a cardiac cycle graph?
Answer: B
8. What is a correct interpretation of the MCV chart?
Answer: C – 90% MCV coverage resulted in fewer than half a million
measles cases annually.
9. Which statement about the wildflower sampling is correct?
Answer: A – Field G will have a greater Simpson's diversity index.
10. What are the three domains of life?
Answer: A – Archaea, Bacteria, and Eukaryota
11. What is the Rf value of Z in chromatography?
Answer: A – 0.63
12. Which option correctly completes the circulatory system pressure table?
Answer: C – High, Low, Low, Low
13. Which is not a needed precaution when setting up a potometer?
Answer: B – The screw clip must be opened when taking readings
14. Which stage of mitosis is shown in the image?
Answer: B – Metaphase
1. Which of the rows is correct about microscopes?
Answer: C – Microscopes vary in their magnification and resolution.
2. Which bond joins monosaccharides together?
Answer: B – Glycosidic bond
3. Which row correctly identifies the role of inorganic ions in enzyme-
controlled reactions?
Answer: D
4. Which of the following statements about the genetic code is incorrect?
Answer: C – It is overlapping.
5. Which statement describes inhalation?
Answer: C – Ribcage moves upwards and outwards; external intercostal
muscles contract; diaphragm contracts.
6. Which structures are found in both prokaryotes and eukaryotes?
Answer: D – Ribosomes
7. Which time period shows ventricular systole in a cardiac cycle graph?
Answer: B
8. What is a correct interpretation of the MCV chart?
Answer: C – 90% MCV coverage resulted in fewer than half a million
measles cases annually.
9. Which statement about the wildflower sampling is correct?
Answer: A – Field G will have a greater Simpson's diversity index.
10. What are the three domains of life?
Answer: A – Archaea, Bacteria, and Eukaryota
11. What is the Rf value of Z in chromatography?
Answer: A – 0.63
12. Which option correctly completes the circulatory system pressure table?
Answer: C – High, Low, Low, Low
13. Which is not a needed precaution when setting up a potometer?
Answer: B – The screw clip must be opened when taking readings
14. Which stage of mitosis is shown in the image?
Answer: B – Metaphase
