IGCSE Biology (0610) — May–June 2023, Paper 11

40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.

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Question 1 · 1 mark · Characteristics and classification of living organisms

What are characteristics of all organisms? A egestion and excretion B egestion and nutrition C excretion and nutrition D excretion and photosynthesis

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Question 2 · 1 mark · Characteristics and classification of living organisms

The scientific name for the golden eagle is Aquila chrysaetos. What is the genus of the golden eagle? A Aquila B chrysaetos C eagle D golden

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Question 3 · 1 mark · Characteristics and classification of living organisms

The diagram shows four arthropods (Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5). How many of these arthropods are insects? A 1 B 2 C 3 D 4

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Question 4 · 1 mark · Cells

Which row shows structures that are present in both root hair cells and palisade mesophyll cells? The table has columns: cell wall, chloroplasts, cytoplasm, vacuole. Each row…

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Question 5 · 1 mark · Cells

The diagram shows a cell at ×1500 magnification, measured against a scale bar reading 0 to 10 cm. The image of the cell measures about 5 cm. What is the actual size of the cell? A…

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Question 6 · 1 mark · Movement into and out of cells

The diagram shows a test-tube containing clear jelly. A drop of blue ink is injected into the middle of the jelly. The blue colour of the ink spreads throughout the jelly. By…

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Question 7 · 1 mark · Movement into and out of cells

The diagram shows some of the apparatus used in an osmosis investigation: a dialysis tubing bag containing sucrose solution immersed in distilled water. In this investigation a…

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Question 8 · 1 mark · Movement into and out of cells

Which row describes active transport of ions? Columns: direction of movement of ions; requires energy from respiration. A from high concentration to low concentration; yes B from…

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Question 9 · 1 mark · Biological molecules

The diagram shows part of a protein molecule, with one of the repeating sub-units labelled X. What does X represent? A amino acid B fatty acid C glycerol D sugar

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Question 10 · 1 mark · Enzymes

What is true of all enzymes? The table has columns: they are sugars; they are most effective at pH 7. Each row A–D shows yes/no for each statement (key: ✓ = yes, blank = no). A…

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Question 11 · 1 mark · Enzymes

The diagram shows enzyme X with four possible molecules A, B, C and D of different shapes near its active site. What is the substrate for enzyme X? (The correct substrate is the…

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Question 12 · 1 mark · Plant nutrition

An experiment is set up to investigate gas exchange in aquatic plants. An aquatic plant is placed in hydrogencarbonate indicator solution in the light. The hydrogencarbonate…

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Question 13 · 1 mark · Plant nutrition

How are most leaves adapted for photosynthesis? A They have a large surface area and are thick. B They have a large surface area and are thin. C They have a small surface area and…

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Question 14 · 1 mark · Human nutrition

The haemoglobin concentration in the blood of a person is 80 g / dm³. The accepted normal concentration is 120 g / dm³ or above. Which substance may be lacking in their diet? A…

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Question 15 · 1 mark · Human nutrition

Which statement about physical digestion is correct? A It increases the surface area of food. B It involves enzymes. C It takes place in the mouth only. D It produces smaller…

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Question 16 · 1 mark · Human nutrition

Solid food enters the mouth at P and enters the oesophagus at Q. How does the food at Q differ from the food at P? A It contains less fibre. B It contains less water. C It…

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Question 17 · 1 mark · Transport in plants

Which row shows the functions of xylem and phloem? Columns: transports amino acids; transports mineral ions; transports sucrose. A phloem; xylem; phloem B xylem; xylem; phloem C…

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Question 18 · 1 mark · Transport in plants

What is the effect on a plant of not having any root hairs? A The plant absorbs less water from the soil. B The plant absorbs more water from the soil. C The plant loses water to…

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Question 19 · 1 mark · Transport in animals

Which statements describe how the structures in the circulatory system function? 1 a muscular pump to push blood into vessels 2 valves to ensure one-way blood flow 3 veins to take…

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Question 20 · 1 mark · Transport in animals

The diagram shows a section through the heart, with four parts labelled A, B, C and D. Which part is the septum? A B C D

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Question 21 · 1 mark · Diseases and immunity

What is an example of good personal hygiene in the kitchen? A cooking food at a high temperature B disposing of waste food in sealed containers C storing uncooked meat in a fridge…

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Question 22 · 1 mark · Gas exchange in humans

What is the pathway of expired air as it travels out of the body? A alveoli → trachea → bronchiole → bronchi B alveoli → bronchiole → bronchi → trachea C trachea → alveoli →…

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Question 23 · 1 mark · Respiration

The diagram shows the activity of some yeast cells in a sugar solution; a gas bubble passes into limewater. Which statement explains what happens to the limewater? A The limewater…

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Question 24 · 1 mark · Respiration

What is the word equation for aerobic respiration? A carbon dioxide + water → glucose + oxygen B glucose + oxygen → carbon dioxide + water C glycogen + oxygen → carbon dioxide +…

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Question 25 · 1 mark · Excretion in humans

Which part of the body excretes urea, excess water and excess ions? A gall bladder B heart C kidney D lungs

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Question 26 · 1 mark · Excretion in humans

The diagram shows the kidneys and associated organs, with four structures labelled A, B, C and D. Which label is the ureter? A B C D

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Question 27 · 1 mark · Coordination and response

What is the name of the junction between two neurones? A effector B receptor C gland D synapse

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Question 28 · 1 mark · Coordination and response

Which statement about adrenaline is correct? A It decreases the heart rate. B It decreases the diameter of the pupil. C It increases the breathing rate. D It is made in the…

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Question 29 · 1 mark · Coordination and response

Which words complete the statements? 'Plant growth towards light is called ...1... . When a plant shoot grows towards a light source, it is showing a ...2... to light. Light acts…

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Question 30 · 1 mark · Diseases and immunity

Which statements about antibiotics are correct? 1 Antibiotics can be used to treat bacterial infections. 2 Antibiotics can be used to treat viral infections. 3 Antibiotics are not…

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Question 31 · 1 mark · Reproduction

Which statement about sexual reproduction is correct? A Fertilisation is involved. B Zygotes fuse. C Offspring are always genetically identical. D One female gamete fuses with…

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Question 32 · 1 mark · Reproduction

Which row about asexual reproduction is correct? Columns: number of parents; offspring identical to parents; offspring identical to each other. A one; no; yes B one; yes; yes C…

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Question 33 · 1 mark · Inheritance

What is defined as a length of DNA that codes for a protein? A amino acid B antibody C chromosome D gene

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Question 34 · 1 mark · Inheritance

A man has three sons. What is the chance of his next child being a daughter? A 0% B 25% C 50% D 100%

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Question 35 · 1 mark · Variation and selection

Which term is a genetic change? A allele B genotype C mutation D phenotype

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Question 36 · 1 mark · Organisms and their environment

The diagram shows energy flow from the Sun, through a food chain (plant → animal → animal) and into the environment, with arrow 1 from the Sun to the plant and arrow 2 along the…

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Question 37 · 1 mark · Organisms and their environment

In a pyramid of numbers, what does the top of the pyramid represent? A carnivores B decomposers C herbivores D Sun

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Question 38 · 1 mark · Organisms and their environment

A few yeast cells were placed in a container of nutrient solution. The graph shows how their population size changed over time, with four numbered phases (1 lag, 2…

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Question 39 · 1 mark · Human influences on ecosystems

The bloodworm is an organism that is found in heavily polluted water. The diagram shows where raw sewage flows into a river, with four sampling points A, B, C and D along the…

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Question 40 · 1 mark · Variation and selection

Which statement about genetic modification is correct? A It involves choosing which individual organisms are used for breeding. B It is always done using genes from the same…

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