IGCSE Coordinated Science Vocabulary Practice Test

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• Which term describes the gradual changes in a population over generations?
• What is the difference between a series and a parallel electrical circuit?
• How is energy transferred in a food chain?
• A single variant form of a gene is called what?
• Which term describes a large molecule made up of repeating monomer units?
• Which statement describes Hooke's law?
• Osmosis is the diffusion of water across a selectively permeable membrane. Which of the following describes osmosis?
• Electromagnetic waves are referred to as what?
• Which process involves the breakdown of large insoluble molecules into small water-soluble molecules using mechanical and chemical processes?
• The process involving the fusion of two haploid nuclei to form a diploid zygote and the production of genetically dissimilar offspring is known as what?
• Which plant tissue transports water and minerals from roots to the rest of the plant?
• Which term describes the taking in of nutrients for growth and tissue repair and their assimilation?
• Which substance accumulates in muscles during intense exercise due to anaerobic respiration?
• Which term describes the fusion of nuclei of male and female gametes to produce a diploid zygote?
• What is a trait that enables successful survival and reproduction?
• The process of cell division that results in four dissimilar haploid daughter cells is called?
• During fermentation by yeast, sugar is turned into which substance?
• Which type of polymer is formed when water is produced during polymerization?
• What term describes an organism that makes its own organic nutrients through photosynthesis?
• The transfer of heat through vibrations of particles in a solid is known as?
• What term describes the idea that the strongest and best-adapted individuals are more likely to survive and breed?
• What term describes the sum of the relative atomic masses of all atoms in a molecule?
• The force of attraction between all masses is called?
• If you double the voltage in a circuit with fixed resistance, what happens to the current?
• Which term describes the production of genetically identical offspring from one parent by mitosis?
• Which process involves chemical reactions that break down nutrient molecules in living cells to release energy?
• A circulatory system is described as what?
• What is the process that converts sugar mixed with water into ethanol by yeast?
• Which plant tissue transports sugars in plants?
• Which description best defines kinetic energy?
• What is the SI unit for temperature?
• Which term describes a substance that speeds up a chemical reaction without being consumed?
• What is the SI unit for electrical current?
• The SI unit metre is used to measure which quantity?
• How do you calculate efficiency?
• What is transpiration?
• What is the unit of electrical resistance?
• What is the function of the amylase enzyme in digestion?
• Which term best describes an organism that feeds on dead matter to obtain energy?
• What is a simple machine?
• What is the kidney's main role?
• Containing two sets of chromosomes describes which term?
• What is the SI unit for distance?
• Which part of the digestive system absorbs nutrients into the bloodstream?
• What is the movement of digested food substances through the walls of the small intestine into the blood or lacteal called?
• A length of DNA that is a unit of heredity and codes for one or more specific proteins is a?
• Which term describes the genetic makeup for a specific gene pair?
• Which term best describes the genetic makeup of an organism?
• What happens to enzymes at very high temperatures or extreme pH?
• The basic unit of heredity that codes for one or more proteins is a?
• Which term describes a permanent increase in size and dry mass due to cell growth?
• The maintenance of a constant internal environment is known as what?
• Which process results in two genetically identical daughter cells?
• What is the unit of electrical current?
• Why is chlorination used in water treatment?
• Which of the following does NOT affect the rate of a reaction?
• What are xylem and phloem?
• Which term describes the distance between identical points on successive waves?
• The SI unit ampere is used to measure which quantity?
• Which term describes a polymer formed by linking many of the same monomers?
• Which term describes an animal that gets energy by eating plants?
• A change in a gene or chromosome is called?
• What term describes a plant growth response in which the plant grows towards or away from light?
• A thread of DNA made up of a string of genes is called a?
• The transfer of heat through the particles in a liquid or gas is called?
• Relative atomic mass is measured relative to which standard isotope?
• Which term means the movement of digested nutrients from the gut into the blood or lymph?
• What is the SI unit for time?
• What is acid rain and why is it harmful?
• Which term describes an organism that gets its energy from dead or waste organic matter?
• A unit containing all of the organisms and their environment, interacting together in a given area is called what?
• Which term describes an action by an organism or part of an organism causing a change in position or place?
• What does the Biuret test indicate?
• What is formed when an acid reacts with a base?
• If two different alleles are present for a gene, the genotype is described as what?
• Which statement best describes diffusion?
• Which mass term expresses the total mass of a molecule in terms of atomic masses, ignoring charge?
• Which term refers to proteins that function as biological catalysts?
• Which substance corresponds to the formula C3H603?
• Which term best describes the net movement of molecules from high to low concentration due to random motion?
• Compared to veins, arteries typically have thicker walls.
• A network of interconnected food chains showing energy flow through part of the ecosystem is called what?
• Lactic acid is produced in muscle cells during which process?
• Which process consists of chemical reactions that break down nutrient molecules in living cells to release energy?
• What is a producer in an ecosystem?
• What is a substance that increases the rate of a reaction but itself remains chemically unchanged?
• A polymer formed by linking two or more monomers where water is formed is called what?
• Nutrients that are absorbed and assimilated to provide materials for growth and tissue repair describe which process?
• Genetic and/or environmental differences within a population are called?
• What term refers to any two or more alternative forms of a gene?
• Which type of radiation has the greatest penetration power?
• Which term describes a specific number of particles defined by Avogadro's constant?
• Which quantity is measured in amperes?
• What does the lock and key concept in enzymes illustrate?
• Which quantity is defined as the energy per unit charge supplied by a source to move charges around a circuit?
• Which process is the diffusion of water molecules from a region of high concentration to a region of low concentration through a partially permeable membrane?
• What is a Punnett square used for?
• Which process leads to more of the same kind of organism?
• What is the difference between a longitudinal wave and a transverse wave? Give an example.
• What is the rate of a reaction?
• What is the function of the cell wall?
• How can you describe an acidic solution on the pH scale?
• What does Benedict's test detect?
• Which statement about osmosis is true?
• Which term is used for a chemical that travels in the bloodstream to affect distant target organs?
• Taking substances into the body through the mouth describes which term?
• Which term describes the taking in of nutrients to provide materials for growth and tissue repair, including absorption and assimilation?
• An allele that is expressed in the phenotype whenever present describes which term?
• Which term describes the physical or other features of an organism resulting from genotype and environment?
• In a solution, what is the solvent?
• Which statement does not describe one of the three main rock types?
• Where does amylase act to digest starch?
• Which term describes organisms that can cause disease?
• What is the mass of an atom compared with a C-12 atom?
• Which process describes the evaporation of water from leaf surfaces followed by loss through stomata?
• What causes rust?
• Which statement about condensation polymers is true?
• The number of waves that pass a given point per second is known as what?
• In a solution, what is the solute?
• Name the main nutrients required in large amounts by the body.
• Which process results in four genetically diverse daughter cells?
• Which term describes a chemical released by an endocrine gland that travels in the blood to influence distant organs?
• Which term means making use of absorbed food molecules?
• The SI unit kilogram is used to measure which quantity?
• Which statement about the efficiency of a machine is true?
• Which chemical formula represents glucose?
• What is an enzyme's active site?
• Which organelle is primarily responsible for energy production in the cell?
• Relative formula mass is used for which type of compound?
• Which term describes the network of organisms and their feeding relationships in an ecosystem?
• The process of cell division that results in two identical diploid daughter cells for growth and tissue repair is called?
• What is a catalyst?
• What is the distance between identical points on successive waves called?
• What are the three main rock types?
• A single molecule that can join with others to form larger molecules is called a
• What term describes the radioactivity that is around us from natural sources?
• What is electrolysis?
• Which process transfers pollen from the male part to the female part of a plant?
• In a food chain, energy transfer is described as what happens to energy at each stage?
• Which term best describes energy associated with motion?
• Containing one set of unpaired chromosomes describes which term?
• What term describes the rate of flow of electric charge?
• Which statement about arteries and veins is true?
• Which organelle conducts photosynthesis in plant cells?
• What is the SI unit for mass?
• Define renewable energy.
• The best adapted organism has the best chance of survival and passing on their genetic information is described by?
• Two identical alleles of the same gene are called what?
• Which quantity is the energy that drives the current between two points in a circuit?
• What is reflection?
• In a saturated solution at a fixed temperature, adding more solute will?
• Which term is used for the process that uses light energy to convert carbon dioxide and water into carbohydrates in plants?
• The transmission of genetic information from generation to generation is called?
• Which method of heat transfer occurs by electromagnetic waves and does not require matter?
• What is neutralisation?
• Which process moves water across a membrane from high water potential to low water potential?
• Which process releases a large amount of energy in cells by breaking down food substances in the presence of oxygen?
• Which term is the sum of the relative atomic masses for an ionic compound?
• What are villi and why are they important in digestion?
• What is the maximum displacement of a point from its rest position called?
• A version of a gene that can exist in multiple forms is called what?
• Differentiate between acids, bases and alkalis.
• What is translocation in plants?
• What is the difference between kinetic energy and potential energy?
• Which term describes the genetic makeup of an organism in terms of the alleles present?
• Define osmosis.
• What is the function of the nucleus in a cell?
• Which term refers to a chemical produced by a gland, carried by the blood which alters the activity of one or more specific target organs and is then destroyed by the liver?
• Which heat transfer occurs primarily in fluids like air and water?
• What is the role of mitochondria?
• Which process breaks down a substance by heating it with water in acidic or alkaline conditions to increase the rate of reaction?
• Define refraction.
• What is the function of the small intestine in digestion?
• What term describes humans breeding organisms to obtain desirable phenotypes?
• Which process is the net movement of molecules from a region of higher concentration to a region of lower concentration due to their random movement?
• What is a food chain?
• Which process releases energy by breaking down glucose in the presence of oxygen?
• What term is the voltage that a battery or other source will supply to drive charge around a complete circuit?
• Which statement about the efficiency of a machine is true?
• What is the role of the heart in circulation?
• What describes a region in which an electric charge experiences a force?
• What is the function of red blood cells?
• What are alpha, beta and gamma radiation?
• What term describes the passing out of food that has not been digested as faeces through the anus?
• Which term means the ability to detect and respond to changes in the environment?
• Which term describes an animal that gets energy by eating other animals?
• Which term describes an organism that gets energy by feeding on other organisms?
• Which term describes a large molecule built from repeating monomer units?
• What does iodine solution test for in foods?
• The observable characteristics of an organism are its?
• The physical traits that result from the genotype and the environment are called what?
• Two different alleles of the same gene are called what?
• Which process moves sugars through the phloem from production areas to storage or to respiration and growth?
• State Ohm's law.
• What does it mean if a solution is saturated?
• Which of the following is an example of renewable energy?
• Which term refers to the breakdown of large molecules into smaller, soluble molecules?
• Which term best describes the interaction of living organisms with their physical environment in a defined area?
• If an enzyme loses its shape due to heat, what is likely to happen?
• A rock formed when magma cools and solidifies is called what?
• How do diffusion and osmosis differ?
• An allele that is only expressed when no dominant allele is present describes which term?
• The SI unit kelvin is used to measure which quantity?
• Which process releases relatively small amounts of energy by the breakdown of food substances in the absence of oxygen?
• What is the fundamental process by which plants manufacture carbohydrates from raw materials using energy from light?
• Which term describes the set of alleles that an organism carries for a particular gene, regardless of whether they are expressed?
• If a circuit has V = 9 V and R = 3 Ω, what is the current I?
• Organisms that can cause disease are called what?
• What term describes a plant growth response in which the plant grows towards or away from gravity?
• Which term describes the removal of toxic materials and waste products from the body?