1 Core concepts in biology

Practice questions on Core concepts in biology

• Explain why an increase in temperature from 10°C to the optimum temperature increases the … (5 marks, Explain)
• Describe the differences between prokaryotic cells and eukaryotic cells. (5 marks, Describe)
• Stem cells can be used in medicine to treat a range of diseases. Explain why embryonic ste… (5 marks, Explain)
• Explain how the structure of an enzyme allows it to carry out its specific function, and d… (5 marks, Explain)
• Mitosis is a type of cell division that occurs during the cell cycle. Explain why mitosis … (5 marks, Explain)
• A student investigates the effect of temperature on the activity of amylase. As the temper… (5 marks, Explain)
• A student places pieces of fresh liver into solutions of different pH values and measures … (5 marks, Explain)
• Red blood cells need glucose for cellular respiration. Explain how glucose moves from the … (5 marks, Explain)
• Explain how a change in pH away from an enzyme's optimum affects the rate of an enzyme-con… (5 marks, Explain)
• Amylase is an enzyme that breaks down starch into simple sugars. Describe how the structur… (5 marks, Describe and Explain)
• During the cell cycle, DNA replication occurs in the nucleus before a cell can divide by m… (5 marks, Explain)
• A scientist studies DNA replication in human liver cells. Explain how a single molecule of… (5 marks, Explain)
• A student investigating DNA structure notices that the two strands of a DNA molecule are h… (5 marks, Describe and Explain)
• A student uses Benedict's test and the Biuret test to identify the biological molecules pr… (5 marks, Describe and Explain)
• Explain why meiosis is important in sexual reproduction, and describe what happens to chro… (5 marks, Explain and Describe)
• Cell differentiation is an important process in multicellular organisms. Describe what cel… (5 marks, Describe and Explain)
• Stem cells are used in medicine to treat a range of diseases. Describe what stem cells are… (5 marks, Evaluate)
• A patient is diagnosed with cancer after a routine screening. Explain how cancer develops … (5 marks, Explain)
• Describe the cell cycle and explain why mitosis is important in multicellular organisms. (5 marks, Describe and Explain)
• A chromosome is described as a long, coiled molecule of DNA that carries genetic informati… (5 marks, Explain)