AS & A Level Biology (9700) — May–June 2023, Paper 11
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →The electron micrograph shows onion root cells prepared using a freeze-fracture technique. The cells were quickly frozen and then physically broken apart. Freeze fracture breaks…
Answer this question and get it marked →Which cell structures can form vesicles? The options are given as a table with a tick for 'can form vesicles' and a cross for 'cannot form vesicles' across cell surface membrane,…
Answer this question and get it marked →Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by number: 1 synthesis of polypeptides; 2…
Answer this question and get it marked →Which cells contain a tonoplast? The options are given as a table with a tick for 'contain tonoplast' and a cross for 'do not contain tonoplast' across root hair, companion, sieve…
Answer this question and get it marked →Which organelles found in animal or plant cells are surrounded by double membranes? A chloroplasts, mitochondria, vacuoles B chloroplasts, mitochondria, nuclei C chloroplasts,…
Answer this question and get it marked →Some scientists think that mitochondria evolved from bacteria that entered the cytoplasm of a different cell and were able to survive there. Which structural features of…
Answer this question and get it marked →What is present in all viruses, all prokaryotes and all eukaryotes? A ribose B deoxyribose C cytosine D thymine
Answer this question and get it marked →The table shows some steps that can be made in carrying out the Benedict's test. The steps are: standardise volume of Benedict's solution and volume of test solution; boil with…
Answer this question and get it marked →The diagrams show three examples of different bonds: bond 1 is shown between an N-H group and an O=C group (a dashed line); bond 2 is shown between a C(=O) group and an N-H group;…
Answer this question and get it marked →Insulin is a globular protein involved in cell signalling. It is transported in the blood plasma from the cells that synthesise it to its target cells. A molecule of insulin…
Answer this question and get it marked →Which statement correctly explains why blood plasma can be maintained at a stable temperature? A It has a low specific heat capacity. B It has a high specific heat capacity. C It…
Answer this question and get it marked →The graph shows the energy of molecules in a reaction against time, with one curve 'with enzyme' and one curve 'without enzyme'. Several regions of the graph are labelled A, B, C…
Answer this question and get it marked →The graph shows the effect of an increasing substrate concentration on the rate of an enzyme-catalysed reaction, with rate of reaction on the y-axis and substrate concentration on…
Answer this question and get it marked →Which statement about cell signalling is correct? A One type of receptor molecule will recognise all ligands in the body. B The binding of a ligand may cause a change to the shape…
Answer this question and get it marked →Four students, A, B, C and D, observed plant epidermal cells that had been placed in a concentrated sucrose solution for 30 minutes. They were asked to identify the partially…
Answer this question and get it marked →The table compares the surface area to volume ratios of five agar blocks that differ in dimensions but which all have the same volume. The agar blocks can be used to measure the…
Answer this question and get it marked →The cell cycle includes mitosis. What are features of this type of nuclear division? 1 forms cells of equal size to the parent cell; 2 forms genetically identical nuclei; 3…
Answer this question and get it marked →A student observed the cells in the growing region (meristem) of an onion root and obtained the data shown. stage number of cells --- --- interphase 886 prophase 73 metaphase 16…
Answer this question and get it marked →Which statement about messenger RNA is correct? A In eukaryotic cells, mRNA is made by removing exons from the primary RNA transcript. B mRNA is a single-stranded polynucleotide…
Answer this question and get it marked →Which structures are involved in transcription only? The options are given as a table with a tick for 'involved' and a cross for 'not involved' across DNA template strand,…
Answer this question and get it marked →One gene provides the code for the production of which type of molecule? A amino acid B DNA C nucleotide D polypeptide
Answer this question and get it marked →The table shows some mRNA codons that code for certain amino acids. mRNA codon amino acid --- --- GCG, GCA, GCC, GCU alanine ACG, ACA, ACC, ACU threonine UGC, UGU cysteine UAC,…
Answer this question and get it marked →The Venn diagram shows three overlapping circles for xylem vessel element, companion cell and phloem sieve tube element. Region B is the overlap of xylem vessel element and…
Answer this question and get it marked →What is the correct term to describe intermolecular hydrogen bonding between water molecules? A adhesion B cohesion C osmosis D diffusion
Answer this question and get it marked →The diagram shows the outline of a xerophytic leaf that had been left for 45 minutes in different conditions, P and Q. In condition P the leaf is shown flat and open; in condition…
Answer this question and get it marked →How does sucrose move from chloroplasts to the phloem? 1 diffusion; 2 apoplast pathway; 3 symplast pathway. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only
Answer this question and get it marked →How are companion cells involved in loading sucrose into phloem sieve tube elements? A actively through cotransporter proteins and passively through plasmodesmata B actively…
Answer this question and get it marked →The photomicrograph shows blood cells as seen using a high-power light microscope. Three white blood cells are labelled 1, 2 and 3. Which row correctly identifies the different…
Answer this question and get it marked →Plan diagrams of two blood vessels are shown, labelled 1 and 2, with structures labelled 3, 4 and 5 and fatty tissue indicated. Vessel 1 has a thicker wall and smaller lumen;…
Answer this question and get it marked →What are found in blood and tissue fluid? 1 carbon dioxide; 2 fatty acids; 3 white blood cells; 4 proteins. A 1, 2, 3 and 4 B 1, 2 and 3 only C 1, 2 and 4 only D 3 and 4 only
Answer this question and get it marked →Which reactions would be slowed down by an inhibitor of carbonic anhydrase? 1 CO2 + haemoglobin - carbaminohaemoglobin; 2 CO2 + H2O - H2CO3; 3 H2CO3 - H+ + HCO3-. A 1, 2 and 3 B 1…
Answer this question and get it marked →Which sequence of letters correctly identifies the order of events during the cardiac cycle? The events are: T atrial walls contract; U impulse is delayed by a fraction of a…
Answer this question and get it marked →The diagram gives information about blood pressure in the left side of the heart during the cardiac cycle, showing pressure /kPa against time /s for the aorta, atrium and…
Answer this question and get it marked →A person with no breathing conditions rests for an hour. Their breathing in this time is shallow and slow, so little air from outside the body reaches the alveoli. The person's…
Answer this question and get it marked →Which statements about all bronchioles are correct? 1 They have epithelium. 2 They have goblet cells. 3 They have muscle tissue. A 1, 2 and 3 B 1 and 3 only C 2 only D 3 only
Answer this question and get it marked →The diagram shows some of the pathogens that cause disease in humans and some of the ways they are transmitted. Pathogens are listed as: 1 bacterium; 2 protoctist; 3 virus.…
Answer this question and get it marked →Some of the processes which result in the formation of a population of bacteria that are resistant to a new antibiotic are listed: 1 change in reproductive success of bacteria; 2…
Answer this question and get it marked →When bacteria are grown in a Petri dish containing discs with antibiotics, there will be zones of inhibition of bacterial growth. The diagram shows an antibiotic disc with a clear…
Answer this question and get it marked →Which blood cell type does not recognise, engulf and digest non-self particles? A macrophages B neutrophils C phagocytes D T-killer cells
Answer this question and get it marked →Repeated infections with malaria result in more effective immunity to malaria. Which type of immunity is responsible for the more effective immunity? A artificial active B…
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