Biology Key Word Definitions (C)

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What is a capillary?
The smaller blood vessel that runs between individual cells. It has a wall that is only one cell thick.
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What is carbohydrase?
Enzyme which speeds up the breakdown of carbohydrates.
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What is the carbon cycle?
The cycling of carbon through the living and non-living world.
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What is carbon neutral?
A process which uses as much carbon dioxide as it produces.
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What is a carnivore?
An animal that eats other animals.
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What is a carrier?
An individual who is heterozygous for a faulty allele that causes a genetic disease in the homozygous form.
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What is a catalyst?
A substance which speeds up a chemical reaction. At the end of the reaction the catalyst remains chemically unchanged.
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What is a cell membrane?
The membrane around the contents of a cell with controls what moves in and out of the cell.
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What is a cell wall?
A rigid structure which surrounds the cells of living organs apart from animals.
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What is cellulose?
A big carbohydrate molecule which makes up plant and algae cell walls.
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What is the central nervous system (CNS)?
The central nervous system is made up of the brain and spinal cord where information is processed.
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Who is Charles Darwin?
The Victorian scientist who developed the theory of evolution by a process of natural selection.
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What is chlorophyll?
The green pigment contained in the chloroplasts.
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What are chloroplasts?
The organelles in which photosynthesis takes place.
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What is a chromosome?
Thread-like structure carrying the genetic information found in the nucleus of a cell.
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What is a clone?
Offspring produced by asexual reproduction which is identical to its parent organism.
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What is combustion?
The process of burning.
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What is competition?
The process by which living organisms compete with each other for limited resources such as food, light or reproductive partners.
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What is a compost heap?
A site where garden rubbish and kitchen waste are decomposed by microorganisms.
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What is a concentration gradient?
The gradient between an area where a substance is at a high concentration and an area where is is at a low concentration.
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What is a contraceptive pill?
A pill containing female sex hormones which is used to prevent conception.
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What is the core body temperature?
The internal temperature of the body.
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What is the coronary artery?
An artery which carries oxygenated blood to the muscle of the heart.
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What is culture medium?
A substance containing the nutrients needed for microorganisms to grow.
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What is cystic fibrosis?
A genetic disease that affects the lungs, digestive and reproductive systems. It is inherited through a recessive allele.
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What is cytoplasm?
The water-based gel in which the organelles of all living cells are suspended.
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Other cards in this set

Card 2

Front

What is carbohydrase?

Back

Enzyme which speeds up the breakdown of carbohydrates.

Card 3

Front

What is the carbon cycle?

Back

Preview of the front of card 3

Card 4

Front

What is carbon neutral?

Back

Preview of the front of card 4

Card 5

Front

What is a carnivore?

Back

Preview of the front of card 5
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