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Cell wall

Cell wall

A flexible or rigid boundary protecting a cell.

Glossary

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ATP

ATP

Or Adenosine Triphosphate, a chemical that plays a vital role in metabolism.

Glossary

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Autoimmune disease

Autoimmune disease

A condition in which the immune system attacks cells, organs or tissues in the body.

Glossary

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Gamete

Gamete

A reproductive cell that fuses with another gamete in sexual reproduction.

Glossary

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Metabolism

Metabolism

The biochemical reactions in living organisms that are necessary to maintain life.

Glossary

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Blastocyst

Blastocyst

An early stage in the development of a mammalian embryo.

Glossary

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Virus

Virus

An infectious agent that can reproduce only inside other cells.

Glossary

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Chromosome

Chromosome

The organised structure of DNA in a cell, and the functional unit of inheritance.

Glossary

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Antibody

Antibody

A protein produced by the vertebrate immune system that protects against a harmful agent.

Glossary

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Cytoplasm

Cytoplasm

The contents of a cell.

Glossary

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Conception

Conception

The fusion of gametes to create a new organism.

Glossary

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Catabolism

Catabolism

A major process in metabolism.

Glossary

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Myoglobin

Myoglobin

A protein found in muscle tissue.

Glossary

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Protein

Protein

Large molecules that are polymers of amino acids.

Glossary

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Bacteria

Bacteria

Single celled prokaryotic microorganisms that reproduce by binary fission.

Glossary

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Deoxygenated

Deoxygenated

A substance that has had oxygen removed from it.

Glossary

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Fertilisation

Fertilisation

The fusion of gametes to create a new organism.

Glossary

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Vacuole

Vacuole

A fluid-filled compartment inside a cell, surrounded by a membrane.

Glossary

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Different Types of Cell

Different Types of Cell

What different types of cell are there and what do they do?

CONTEXT

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Active transport

Active transport

The use of energy to move particles across a cell membrane from a lower concentration to a higher concentration.

Glossary

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