The membrane around the contents of a cell which controls what moves in and out of the cell.
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Cell Wall
A rigid structure which surrounds the cells of living organisms apart from animals.
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Cytoplasm
The water-based gel in which the organelle of all living cells are suspended.
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Concentration Gradient
The gradient between an area where a substance is at a high concentration and an area where it is at a low concentration.
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Diffusion
The net movement of particles of a gas or a solute from an area of high concentration to an area of low concentration (along a concentration gradient).
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Digestive System
The organ system running from the mouth to the anus where food is digested.
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Epidermal Tissue
The tissue of the epidermis - the outer layer of an organism.
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Epithelial Tissue
Tissue made up of relatively unspecialised cells which line the tubes and organs of the body.
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Glandular Tissue
The tissue which makes up the glands and secretes chemicals e.g. enzymes, hormones.
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Mesophyll Tissues
The tissues in a plant in which photosynthesis occurs.
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Multicellular Organism
An organism which is made up of many different cells working together. Some of the cells are specialised to carry out particular functions.
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Light Microscope
An instrument used to magnify specimens using lenses and light.
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Chlorophyll
The green pigment contained in the chloroplasts.
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Net Movement
The overall movement of...
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Chloroplast
The organelle in which photosynthesis takes place.
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Muscular Tissue
The tissue that makes up the muscles. It can contract and relax.
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Nucleus
An organelle found in many living cells. It contains the cell's genetic information.
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Organ
A group of different tissues working together to carry out a particular function.
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Organ System
A group of different organs working together to carry out a particular function.
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Permanent Vacuole
A space in the cytoplasm filled with cell sap that is present all the time.
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Phloem Tissues
The living transport tissue that carries sugars around plants.
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Plasmids
Extra circles of DNA found in bacterial cytoplasm.
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Small Intestine
The region of the digestive system where the majority of digestion occurs.
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Specialised
Adapted for a particular function.
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Tissue
A group of specialised cells all carrying out the same function.
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Xylem Tissue
The non-living transport tissue in plants, which transports water around the plant.
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Other cards in this set
Card 2
Front
A rigid structure which surrounds the cells of living organisms apart from animals.
Back
Cell Wall
Card 3
Front
The water-based gel in which the organelle of all living cells are suspended.
Back
Card 4
Front
The gradient between an area where a substance is at a high concentration and an area where it is at a low concentration.
Back
Card 5
Front
The net movement of particles of a gas or a solute from an area of high concentration to an area of low concentration (along a concentration gradient).
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