IGCSE Biology (0610) — May–June 2025, Paper 13
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →The Venus flytrap is a plant that feeds on insects. When an insect lands on a specially adapted leaf, the leaf folds very quickly and traps the insect. The leaves produce enzymes…
Answer this question and get it marked →A rat has the scientific name Rattus rattus. What do the two parts of this name refer to? A genus and species B kingdom and genus C kingdom and species D species and group
Answer this question and get it marked →Which of the animals shown is a crustacean? The diagram shows four animals labelled A to D: A is a winged insect (e.g. a bee/fly with wings and three pairs of legs); B is an…
Answer this question and get it marked →Which features do animal cells share with plant cells? chloroplast cytoplasm nucleus --- --- --- --- A yes yes yes B yes yes no C no yes yes D no no yes
Answer this question and get it marked →A student makes a drawing of an animal. The length of the animal in the drawing is 30 mm. The actual length of the animal is 200 mm. What is the magnification of the student's…
Answer this question and get it marked →Some pieces of potato plant tissue are placed in a very concentrated sugar solution. Other pieces of potato plant tissue are placed in distilled water. What happens to the mass of…
Answer this question and get it marked →Which statement describes the net movement of particles by active transport in animal cells? A from a higher concentration to a lower concentration across a cell membrane B from a…
Answer this question and get it marked →Which chemical tests should a student use to test lemon juice for reducing sugars and vitamin C? reducing sugars vitamin C --- --- --- A Benedict's solution test DCPIP solution…
Answer this question and get it marked →Which graph shows the effect of pH on enzyme activity? Four graphs of enzyme activity (y-axis) against pH (x-axis) are shown: A is a U-shaped curve (high at low and high pH,…
Answer this question and get it marked →The graph shows the effect of temperature on an enzyme-controlled reaction. At which point on the graph is the enzyme completely denatured? The graph plots rate of reaction…
Answer this question and get it marked →Which carbohydrate is used to build plant cell walls? A cellulose B glycogen C starch D sucrose
Answer this question and get it marked →In a cross-section of a leaf, what is the correct order of structures moving from the upper surface of the leaf towards the lower surface of the leaf? A cuticle, epidermis,…
Answer this question and get it marked →What is the result of a diet lacking iron? A bleeding gums B poor wound healing C reduced number of red blood cells D weak bones and teeth
Answer this question and get it marked →The diagram shows part of the human digestive system. Where is lipase made? The diagram shows the upper part of the human digestive system with four labels: A points to the…
Answer this question and get it marked →Which row about an enzyme in the alimentary canal is correct? site of action enzyme substrate --- --- --- --- A mouth amylase protein B mouth protease starch C stomach protease…
Answer this question and get it marked →What is the pathway taken by water through a plant? A root cortex cells → root hair cells → mesophyll cells → xylem B root cortex cells → root hair cells → xylem → mesophyll cells…
Answer this question and get it marked →Which blood vessel transports blood away from the kidney? A pulmonary artery B pulmonary vein C renal artery D renal vein
Answer this question and get it marked →The diagram shows part of the gas exchange system in humans. The diagram of the thorax shows labels T, U, V and W. W points to the cluster of air sacs (alveoli) at the end of the…
Answer this question and get it marked →Which structure is the site of aerobic respiration in plant cells? A chloroplast B mitochondrion C nucleus D ribosome
Answer this question and get it marked →Which substance is a product of anaerobic respiration in human muscles? A alcohol B carbon dioxide C glucose D lactic acid
Answer this question and get it marked →The diagram shows a human organ system. The diagram shows the urinary system: two kidneys at the top, connected by tubes to the bladder, which leads to a tube exiting the body at…
Answer this question and get it marked →The diagram shows a section through the human eye. Which label identifies the iris? The diagram shows a horizontal section through the eye, with four labels A, B, C and D pointing…
Answer this question and get it marked →Which hormone decreases blood glucose concentration? A adrenaline B glycogen C insulin D oestrogen
Answer this question and get it marked →What is the result of asexual reproduction? A genetically different offspring from one parent B genetically different offspring from two parents C genetically identical offspring…
Answer this question and get it marked →Four test-tubes are set up as shown and placed in the dark. The four test-tubes each contain seeds on cotton wool: A has seeds on moist cotton wool at 0 °C; B has seeds on moist…
Answer this question and get it marked →Where in the human male reproductive system are sperm produced? A penis B prostate gland C scrotum D testes
Answer this question and get it marked →A person's menstrual cycle lasts for 28 days. Which statement describes an event in this menstrual cycle? A The ovary releases an egg on day 14. B The ovary releases an egg on day…
Answer this question and get it marked →An individual has the genotype Bb. What is the correct description of this genotype? A heterozygous, with two different alleles of the same gene B heterozygous, with two different…
Answer this question and get it marked →Which statement describes inheritance? A organisms which are not pure-breeding B the difference between homozygous and heterozygous genotypes C the genetic information in dominant…
Answer this question and get it marked →What is a feature of natural selection? A genetic variation within populations B plenty of resources C production of genetically identical offspring D selection by humans
Answer this question and get it marked →What is the principal source of energy input to biological systems? A carbon dioxide in air B glucose C minerals in soil D the Sun
Answer this question and get it marked →The diagram shows a food web. The food web shows: grass is eaten by rabbit, mouse and grasshopper. Rabbit and mouse are eaten by fox; mouse is eaten by owl and hawk; grasshopper…
Answer this question and get it marked →The diagram shows part of the carbon cycle. The diagram shows carbon dioxide gas in the air linked by arrows labelled A, B, C and D to other carbon stores. Arrow A connects fossil…
Answer this question and get it marked →The diagram shows a graph of population growth. The graph plots population size (y-axis) against time (x-axis) as an S-shaped (sigmoid) curve. Region A is the early lag phase…
Answer this question and get it marked →Two methods of livestock production are described. method 1 Animals are kept in a small area and their movement is restricted. method 2 Animals are allowed to move freely around a…
Answer this question and get it marked →Some species of aquatic insects are able to survive at different ranges of pH. The diagram shows the pH ranges in which four different species are able to survive. The chart shows…
Answer this question and get it marked →Which practice helps to maintain biodiversity? A improving crop yields by using herbicides B increasing crop yields by using insecticides C the protection of habitats D the use of…
Answer this question and get it marked →The diagram shows four positions on a river where water samples were taken. The diagram shows a river flowing left to right with sampling positions W, X, Y and Z. An untreated…
Answer this question and get it marked →Which feature makes bacteria useful in genetic modification? A can make complex molecules B have a cell membrane C have a cell wall D reproduce slowly
Answer this question and get it marked →Scientists have developed a genetically modified pineapple plant that produces pink fruit. The pineapple fruit is pink because of increased concentrations of a substance called…
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