AQA A-Level Biology (7402) · AQA 7402
3.1 Biological Molecules
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Biological Molecules
- Explain why glucose is described as the primary source of energy for cells, and describe h… (5 marks, Explain)
- Glucose is a monomer. Explain how glucose monomers are used to build a polymer, and state … (5 marks, Explain)
- Describe what is meant by a monomer and a polymer, and describe how polymers can be broken… (5 marks, Describe)
- Explain how a polymer is formed from monomers, and why this process is important in living… (5 marks, Explain)
- Explain why increasing the concentration of an enzyme increases the rate of a reaction, an… (5 marks, Explain)
- Evaluate the claim that ATP is a better immediate energy source for cells than glucose. (5 marks, Evaluate)
- Explain the importance of inorganic ions in the synthesis of proteins and in the generatio… (5 marks, Explain)
- A scientist is investigating molecules found in cell membranes and in the adipose tissue o… (5 marks, Describe and Explain)
- Explain the importance of iron ions in red blood cells and of phosphate ions in the produc… (5 marks, Explain)
- Explain how a molecule of DNA in a cell nucleus controls the sequence of amino acids in a … (5 marks, Explain)
- Cellulose and glycogen are both polymers found in living organisms. Explain what is meant … (5 marks, Explain)
- A marathon runner's body uses lipids as a fuel source during a long-distance race. Explain… (5 marks, Explain)
- Explain the importance of calcium ions and sodium ions to the human body. (5 marks, Explain)
- Explain the importance of inorganic ions in the process of photosynthesis and in the struc… (5 marks, Explain)
- Explain the importance of phosphate ions and calcium ions in the human body. (5 marks, Explain)
- Explain how the properties of water are important to marine mammals, such as whales, that … (5 marks, Explain)
- Explain how the properties of water are important to organisms that live in rocky intertid… (5 marks, Explain)
- Explain how the properties of water are important during the chemical reactions that occur… (5 marks, Explain)
- Explain how the properties of water are important to plants living in environments that ex… (5 marks, Explain)
- Explain how the properties of water are important during sweating as a mechanism for cooli… (5 marks, Explain)
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