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Higher biology - Chapter 1
Glossary
16
Biology
Not Applicable
04/27/2011

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Term
Cell wall
Definition
Structure which provides a plant cell with support and protection
Term
Chloroplast
Definition
Green structure responsible for photosynthesis in a plant cell
Term
Cheek epithelium
Definition
Protective tissue consisting of irregularly shaped cells which are replaced constantly
Term
Cilia
Definition
Hair-like structures used by some unicellular animals for locomotion
Term
Ciliated epithelium
Definition
Protective tissue which secretes mucus and bears cilia
Term
Contractile vacuole
Definition
Structure which expels excess water from a unicellular animal’s body
Term
Epidermis
Definition
Protective tissue on the outside of plant organs
Term
Food vacuole
Definition
Site of digestion in a unicellular animal
Term
Mesophyll
Definition
Photosynthetic tissue present in a leaf
Term
Motor neurone
Definition
Type of nerve cell which transmits a nerve impulse to an effector
Term
Multicellular
Definition
Term used to describe an organism which consists of more than one cell
Term
Nucleus
Definition
Control centre of a cell containing genetic material
Term
Phloem
Definition
Plant tissue responsible for translocation of sugar
Term
Tissue
Definition
Group of cells specialised to perform a particular function
Term
Unicellular
Definition
Term used to describe an organism which consists of one cell
Term
Xylem
Definition
Plant tissue responsible for support and water transport
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