IGCSE Biology (0970) — October–November 2023, Paper 12
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Which processes are characteristics of all living organisms? 1 digestion 2 respiration 3 excretion A 1, 2 and 3 B 1 only C 2 and 3 only D 2 only
Answer this question and get it marked →Using the binomial system, the Arctic fox is called Vulpes lagopus. Which row is correct? Columns: Vulpes; lagopus. A genus; kingdom B genus; species C species; genus D species;…
Answer this question and get it marked →The diagrams show four different types of arthropod, each labelled with an arthropod group (crustacean, insect, myriapod, arachnid). Which organism is labelled with its correct…
Answer this question and get it marked →Which features are possessed by all plant cells? The table considers a cell wall and chloroplasts (key: shaded = yes, blank = no). A B C D
Answer this question and get it marked →The diameter of an egg is 6.5 cm. A student draws the egg. The diameter of the egg in the drawing is 19.5 cm. What is the magnification of the drawing? A 0.3 B 3.0 C 6.5 D 300
Answer this question and get it marked →The diagram shows an experiment to investigate osmosis in living cells: a potato containing concentrated sugar solution sits in a glass dish of water. What happens to the volumes…
Answer this question and get it marked →Which process causes oxygen to pass from an alveolus in the lung into a blood capillary? A assimilation B diffusion C excretion D osmosis
Answer this question and get it marked →Which row identifies the chemical elements in proteins? The table considers carbon, hydrogen, oxygen and nitrogen (key: shaded = present, blank = absent). A B C D
Answer this question and get it marked →The table shows some large biological molecules and some small biological molecules: 1 cellulose / glucose 2 oil / amino acids 3 glycogen / glucose 4 protein / ethanol Which rows…
Answer this question and get it marked →Which changes could cause an enzyme to denature? 1 change in pH 2 change in temperature 3 change in substrate concentration A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3…
Answer this question and get it marked →Which features of a leaf allow more diffusion of carbon dioxide into the palisade cells for photosynthesis? Columns: number of stomata; thickness of the leaf. A few; thick B few;…
Answer this question and get it marked →The diagram shows a cell with groups of bacteria around its edge. The cell has a spiral-shaped chloroplast and cytoplasm. The bacteria have moved to areas of high oxygen…
Answer this question and get it marked →The diagram shows the teeth in the lower jaw of a human, with teeth labelled A, B, C and D. Which tooth is a premolar? A B C D
Answer this question and get it marked →Some medicines are made into tablets coated in a starch-like substance. The coating protects the medicine from the effects of gastric juice. Which enzyme digests the coating and…
Answer this question and get it marked →In which part of the alimentary canal are most nutrients absorbed into the blood? A colon B oesophagus C small intestine D stomach
Answer this question and get it marked →From which part of a leaf does most water evaporate during transpiration? A the cuticle B the guard cells C the spongy mesophyll cells D the xylem vessels
Answer this question and get it marked →The photograph shows a cross-section through a sunflower stem, with the tissue labelled Z. What is the name and function of the tissue labelled Z? Columns: name of tissue;…
Answer this question and get it marked →What ensures the one-way flow of blood in the human circulatory system? A capillaries B muscles C valves D ventricles
Answer this question and get it marked →In which row is the component of blood correctly linked to its function? Columns: blood component; function. A plasma; transport of carbon dioxide B platelets; phagocytosis C red…
Answer this question and get it marked →Which statement describes a transmissible disease? A a disease caused when a pathogen passes from one host to another B a disease caused when a pathogen passes through a host's…
Answer this question and get it marked →What is the composition of expired air compared with inspired air? Columns: carbon dioxide; oxygen; water vapour. A decreased; increased; increased B decreased; decreased;…
Answer this question and get it marked →The diagram shows the human breathing system with structures labelled 1, 2 and 3. What are the labelled structures? Columns: 1; 2; 3. A bronchus; bronchiole; trachea B bronchiole;…
Answer this question and get it marked →Yeast cells can convert glucose into alcohol and carbon dioxide. Which statement about this process is correct? A The alcohol produced can be used to make bread rise. B The carbon…
Answer this question and get it marked →In an experiment to investigate anaerobic respiration, two bottles with balloons are set up in a warm room: P contains sugar, yeast and water; Q contains yeast and water. Diagrams…
Answer this question and get it marked →Which row shows an organ and the substance it excretes? Columns: organ; substance excreted. A bladder; water B kidney; ions C lung; oxygen D urethra; urea
Answer this question and get it marked →The diagram shows a reflex arc in a human nervous system. The person's finger has just made contact with a sharp object. Parts labelled A, B, C and D. Which part is the motor…
Answer this question and get it marked →Which lines on the graphs show the effects of adrenaline on pupil diameter and heart rate? The pupil diameter graph has lines W and X; the heart rate graph has lines Y and Z;…
Answer this question and get it marked →Which statements about tropisms in plants are correct? 1 Shoots grow towards light and away from gravity. 2 Shoots grow away from light and towards gravity. 3 Roots grow towards…
Answer this question and get it marked →What is defined as a substance that is taken into the body and modifies or affects chemical reactions in the body? A antibody B drug C hormone D pathogen
Answer this question and get it marked →Which row is correct for asexual reproduction? Columns: number of parents; offspring compared with parent or parents. A one; genetically different B one; genetically identical C…
Answer this question and get it marked →The diagram shows some stages in reproduction: female structure M which releases eggs (→ egg cell), male structure N which releases sperm (→ sperm cell), process P forming cell Q.…
Answer this question and get it marked →The diagram shows half a flower, with structures labelled A, B, C and D. Which structure produces pollen? A B C D
Answer this question and get it marked →Two parents have the genotypes Bb and bb for a particular feature. What is the probability of these parents having offspring that are homozygous recessive for this feature? A 100%…
Answer this question and get it marked →A genetic cross between two organisms may be shown as Tt × Tt. What does T represent? A a dominant allele B a dominant chromosome C a recessive allele D a recessive chromosome
Answer this question and get it marked →Some phenotypes are listed. 1 blood group 2 body mass 3 height 4 seed colour in peas Which phenotypes are examples of continuous variation? A 1, 2 and 3 B 2 and 3 only C 2 and 4 D…
Answer this question and get it marked →A food chain is shown: lettuce plant → slug → hedgehog. By which process is energy transferred from the lettuce plant to the slug? A egestion B excretion C ingestion D respiration
Answer this question and get it marked →A single bush is food for a large population of greenfly. Several ladybirds eat the greenfly. The ladybirds are eaten by a bird. Pyramids A–D show different shapes. Which diagram…
Answer this question and get it marked →Scientists studied the uptake of potassium ions from chemical fertilisers by wheat plants. The results show potassium uptake (kg per hectare) against days after planting (0 to…
Answer this question and get it marked →A student investigated gas exchange using apparatus with a mouthpiece connected to two tubes (tube X and tube Y) of limewater. What would be the appearance of the limewater in…
Answer this question and get it marked →The diagram shows the flow of energy in an ecosystem: Sun → producer → box 1 → box 2, with respiration losses and death leading to box 3. Which row correctly completes boxes 1, 2…
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