IGCSE Biology (0610) — October–November 2023, Paper 13
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →What are characteristics of all living organisms? A breathing, growth and movement B egestion, nutrition and reproduction C digestion, excretion and respiration D reproduction,…
Answer this question and get it marked →Using the binomial system, the name of a lion is Panthera leo. Which statement is correct? A The lion belongs to the kingdom Panthera. B The lion belongs to the genus Panthera. C…
Answer this question and get it marked →Which feature would place organisms into the crustacean group of arthropods? A eight legs B six legs C two pairs of antennae D usually have two pairs of wings
Answer this question and get it marked →The diagram shows the structure of a palisade cell from a leaf, with four structures labelled A, B, C and D. Which structure contains chlorophyll? A B C D
Answer this question and get it marked →A bacterial cell has a length of 40 mm when it is magnified by ×20 000. What is the actual length of the bacterial cell? A 0.0002 mm B 0.002 mm C 0.02 mm D 0.2 mm
Answer this question and get it marked →Which diagram shows the appearance of a plant cell after it is placed in pure water? Each option A–D shows a plant cell in a different state. The correct one (D) shows a turgid…
Answer this question and get it marked →What would lead to a decrease in diffusion rate into a cell? A greater concentration gradient B higher temperature C larger surface area of cell D thicker cell wall
Answer this question and get it marked →Which row shows the chemical elements contained in fats? Columns: carbon; hydrogen; nitrogen; oxygen (key: ✓ = present, blank = absent). Which row A–D is correct? A B C D
Answer this question and get it marked →Glycogen is a large molecule made from smaller molecules. Which smaller molecules is glycogen made from? A amino acids B fatty acids C glucose D glycerol
Answer this question and get it marked →The diagrams represent an enzyme and its substrate. The enzyme is shown with four regions labelled A, B, C and D. Which part of the enzyme molecule is the active site for this…
Answer this question and get it marked →What is a use of the carbohydrates made by photosynthesis? A to produce cellulose for energy stores B to produce starch to build cell walls C to produce starch for transport in…
Answer this question and get it marked →The diagram shows an experiment investigating the effect of light intensity on an aquatic plant. Test-tube P has a light source 20 cm away and test-tube Q has a light source 10 cm…
Answer this question and get it marked →Which human teeth are used for biting and cutting food? A canines and molars B incisors and canines C molars and premolars D premolars and incisors
Answer this question and get it marked →The diagram shows part of the human digestive system with four organs labelled A, B, C and D. Which organ produces hydrochloric acid? A B C D
Answer this question and get it marked →Which part of a balanced diet is missing if a person develops rickets? A carbohydrates B iron C vitamin C D vitamin D
Answer this question and get it marked →By which process is water vapour lost from a leaf? A active transport B diffusion C osmosis D photosynthesis
Answer this question and get it marked →The pathway taken by water through a plant is shown: root hair cells → root cortex cells → Z → mesophyll cells. Which part of the pathway is Z? A palisade cells B phloem C stomata…
Answer this question and get it marked →Which statement about the human circulatory system is correct? A a system of blood vessels with the arteries returning blood to the heart B a system of blood vessels with a pump…
Answer this question and get it marked →What are features of arteries? 1 narrow lumen 2 thick muscular wall 3 walls made of a single layer of cells 4 wide lumen A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
Answer this question and get it marked →What are disease-causing organisms? A antibodies B pathogens C phagocytes D vaccines
Answer this question and get it marked →Which row shows the composition of expired air from a healthy person? Columns: carbon dioxide %; oxygen %; water vapour. A 0.04; 21; saturated B 0.04; 16; variable C 4; 21;…
Answer this question and get it marked →What is the path of carbon dioxide as it leaves the lungs? A alveolus → bronchiole → bronchus → trachea B alveolus → bronchus → bronchiole → trachea C trachea → bronchiole →…
Answer this question and get it marked →Which statement about anaerobic respiration is correct? A Anaerobic respiration requires oxygen and releases less energy per glucose molecule than aerobic respiration. B Anaerobic…
Answer this question and get it marked →What is described as a ball of cells that implants into the lining of the uterus? A acrosome B embryo C fetus D zygote
Answer this question and get it marked →The diagram shows parts of the body involved in excretion in humans, labelled W, X, Y and Z. What are the labelled parts? Columns: W; X; Y; Z. A bladder; ureter; kidney; urethra B…
Answer this question and get it marked →The diagram shows a reflex action when a person touches a hot object and pulls their hand away: hot object touched → skin on hand (E) → neurone F → relay neurone → neurone G →…
Answer this question and get it marked →The diagram shows a section through a human eye with four structures labelled A, B, C and D. Which structure changes shape in response to adrenaline? A B C D
Answer this question and get it marked →What is an example of a population? A all the animals and plants living in a lake B all the different herbivores in a forest C all the mahogany trees growing in a forest D all the…
Answer this question and get it marked →Which statement about antibiotics is correct? A Antibiotics are drugs. B Antibiotics are produced by white blood cells. C Antibiotics can become resistant to bacteria. D…
Answer this question and get it marked →A pea plant with the genotype YY is crossed with a pea plant with the genotype yy. What are the possible genotypes of the offspring? A YY and yy B all Yy C Yy and yy D all YY
Answer this question and get it marked →Which graph shows the effect of temperature on the rate of respiration in yeast? Each option A–D plots rate of respiration against temperature. The correct graph (A) rises to a…
Answer this question and get it marked →What is the correct description of asexual reproduction? A Genetically different offspring are produced from one parent. B Genetically different offspring are produced from two…
Answer this question and get it marked →The diagram shows a human female's reproductive organs with four parts labelled A, B, C and D. Where does fertilisation usually occur? A B C D
Answer this question and get it marked →The diagram shows part of a genetic diagram for the inheritance of sex in humans. The parents are father and mother; the father's gametes are X and gamete 1, and the mother's…
Answer this question and get it marked →Tusks are modified teeth. In one part of the world, most elephants used to be born with tusks. Over the last 50 years, more female elephants have been born without tusks, and…
Answer this question and get it marked →The diagrams show pyramids of numbers and biomass, labelled 1, 2, 3 and 4. Which pyramids could be pyramids of biomass? (A pyramid of biomass always has a base that is at least as…
Answer this question and get it marked →Which process transfers energy between the first and second trophic levels of a food chain? A egestion B ingestion C photosynthesis D respiration
Answer this question and get it marked →The diagram shows part of the carbon cycle, with arrows labelled A, B, C and D linking carbon dioxide in the atmosphere, green plants, animals and fuel. Which arrow represents…
Answer this question and get it marked →Why are bacteria useful in biotechnology and genetic modification? A They can manufacture complex molecules. B They reproduce slowly. C They have a nucleus. D They are the same as…
Answer this question and get it marked →What is a reason for inserting genes into bacterial cells? A to confer resistance to herbicides B to confer resistance to insect pests C to improve their nutritional qualities D…
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