Biology Keywords

Absorption
The process of moving digested food into the blood.
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Active Transport
The movement of molecules in and out of partially permeable cell membranes using the energy produced by respiration.
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Adaption
The process of acclimatising or getting used to the habitat or environment.
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Addiction
When one has taken a substance or has done something so regularly that they can't stop it without suffering withdrawal symptoms.
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Adrenaline
A hormone produced by glands that prepares the body for emergency situations and/or stress.
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Aerobic Respiration
The process of respiration using oxygen from the atmosphere.
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Alveoli
Tiny air sacs, present in the lings, where gas exchange takes place.
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Anaerobic Respiration
The process of respiration without using oxygen from the atmosphere.
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Antagonistic Muscles
Pairs of muscles that work together to cause movement of joints.
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Anther
Part of flower where pollen is produced.
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Antibiotic
A drug that will stop or kill certain bacteria.
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Antibody
A protein molecule that helps protect the body from invading cells.
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Artery
A blood vessel which transports oxygenated blood around the body.
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Asexual Reproduction
Reproduction with producing gametes. An example of this is cloning.
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Bacteria
A type of single-celled organism with a nucleus.
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Bile
An alkaline fluid produced in the liver to aid digestion and the breaking down of food molecules.
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Biomass
The mass of living organism in a certain area.
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Biodegradable
A substance that will be broken by natural processes.
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Bladder
A muscular sac that contains and ejects urine.
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Brain
The organ that coordinates the actions and responses of the body.
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Bronchiole
A small branch of bronchus which connects a bronchus to the alveoli.
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Bronchus
A tube that connects the trachea to the lungs.
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Capillary
The smallest blood vessel, through which substances are exchanged to and from the blood.
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Cancer
A disease causing the rapid and fatal overproduction of cells in a part of the body.
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Carbohydrates
A group of food which provide energy.
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Carnivore
An animal that eats another animal.
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Catalyst
A substance that speeds up a chemical reaction.
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Cell
A structural and functional unit of a cell.
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Cell Membrane
One of the outer layers of a cell which dictates which substances go in and out of the cells
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Cell Wall
The boundary layer of the cell which provides the cells with shape and structure.
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Cholophyll
The green pigment in leaves which absorbs light for photosynthesis.
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Chloroplasts
Structures in a plant cell which contain chlorophyll.
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Circulatory System
A system in the body which enables blood to be transported to various organs, tissues and cells.
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Clone
An organism that is genetically identical to its parent.
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Clotting
A set of chemical reactions which stop blood from flowing out of the body at the point of a wound and form a scab.
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Cornea
The transparent area in the front of the eye which helps refract light rays before they enter the eye.
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Cytoplasm
A substance within a cell, similar to jelly, which does not include the nucleus.
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Decay
The gradual breakdown of substances by decomposers.
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Deficiency Disease
A disease caused by the lack of a certain vitamin or mineral.
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Diaphragm
A muscle situated at the bottom of the lungs which causes air to move in and out of the lungs.
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Diffusion
The movement of molecules from an area of high concentration to an area of low concentration.
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Digestion
The process of breaking down food molecules.
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Drug
A substance that if consumed changes the body or its reactions.
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Egestion
The removal of undigested food.
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Emulsification
The breakdown of large fat molecules into small ones.
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Enzymes
Biological catalyst found in the body.
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Evolution
The change overtime in the gene of species.
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Excretion
Removal or disposal of waste products from the body.
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Extintion
When a species no longer lives on Earth.
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Fats-Lipids
Molecules containing glycerol and fatty acids.
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Fertilisation
The fusion of male and female sex cells.
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Fibre
Indigestible plant tissue to assist with the movement of molecules through the gut.
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Gametes
Sex cells produced in sexual reproduction.
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Genes
A string of DNA found in a chromosome which contains a characteristic.
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Haeoglobin
A red pigment found in red blood cells which combines with oxygen.
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Herbivore
A animal that only eats plants.
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Homeostasis
The maintenance of a constant internal environment.
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Hormone
A messenger in the form of chemical which alters the processes in a certain area of the body.
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Immune System
A series of processes carried out to prevent pathogens infiltrating the body.
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Inheritance
The passing of genetic information from parent to child.
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Invertebrates
Animals that do not have a backbone.
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Joints
The sections of the skeleton where two bones meet.
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Kidney
An organ which helps remove waste chemicals from the blood and dispose of them.
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Kingdoms
Groups which organise and sort living organism.
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Lactic Acid
A product of anaerobic respiration.
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Leaf
The plant organ which provides food for the plant via photosynthesis.
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Liver
The organ in the body which uses bile to break down food molecules.
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Malnutrtion
A condition caused by eating an unbalanced and lacking diet.
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Menstruation
The breaking down of the uterus allowing blood and cells to enter the vagina.
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Metabolism
All the chemical reactions that occur in an organism.
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Mucus
A slime-like substance that traps dust molecules in air passages.
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Muscle
Tissue that enable movement of joints.
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Natural Seletion
The fact that only animals that have adapted have a greater chances of survival.
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Nerve
A group of nerve cells working together.
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Nucleus
The part of the cell which contains genetic information and controls the processes of the cells.
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Nutrition
Consuming food and in order to provide energy for processes such as growth and repair.
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Obesity
The condition when someone is extremely overweight.
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Oesophagus
The tube that connects the mouth to the stomach.
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Organ
A number of tissues working together to carry out a single function.
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Osmosis
Diffusion of water molecules through a partly permeable surface.
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Ovary
The female sex cell where eggs are produced.
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Pancreas
The organ which produces digestive enzymes in order to help digestion.
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Pathogen
An invading cell which can cause disease in the human body.
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Plasma
The watery fluid in the blood which transports nutrients, urea, carbon dioxide and hormones.
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Platelets
Small fragments of dead red blood cells which help blood clot.
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Proteins
Compounds consisting of amino acids which help in growth and repair of cells in the body.
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Puberty
The age at which sexual characteristics develop in the boys and girls.
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Receptors
Cells, tissues or organs which are sensitive to stimuli.
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Reflex Action
The quick and automatic response to stimuli.
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Reproduction
The process of producing new individual organisms.
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Retina
The part of the eye which contains cells that are sensitive to light.
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Root
A plant organ which anchors the plant and absorbs water and nutrients from the soil.
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Sensitivity
The ability to detect or notice changes in the environment.
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Species
A group of living organisms that breed in the same way to produce very similar offspring.
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Starch
An insoluble substance made out of glucose.
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Stem
The plant organ which supports the leaves and flowers whilst also transporting water and nutrients from the roots to other parts of the plant.
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Stomach
A muscular sac at the end of the oesophagi which helps in the digestion of food via chemical reactions with hydrochloric acid.
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Stimulus
A minor or major change in the environment.
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Tendon
A group of fibres that attach muscles to bones.
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Transpiration
The process which occurs in a plant in order to cool it.
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Urea
Waste product caused by the build-up of excess amino acids.
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Urine
A fluid produced by the kidneys which contains waste minerals and excess water.
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Vein
A blood vessel that transports deoxygenated blood around the body.
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Virus
A micro-organism that can only reproduce inside living cells.
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Vertebrates
Animals that have a backbone.
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White Blood Cells
cells that protect the body from invading pathogens via a series of different processes and responses.
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Zygote
A fertilised egg.
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Other cards in this set

Card 2

Front

The movement of molecules in and out of partially permeable cell membranes using the energy produced by respiration.

Back

Active Transport

Card 3

Front

The process of acclimatising or getting used to the habitat or environment.

Back

Preview of the back of card 3

Card 4

Front

When one has taken a substance or has done something so regularly that they can't stop it without suffering withdrawal symptoms.

Back

Preview of the back of card 4

Card 5

Front

A hormone produced by glands that prepares the body for emergency situations and/or stress.

Back

Preview of the back of card 5
View more cards

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