B2.1 CELLS, TISSUES AND ORGANS 4.5 / 5 based on 4 ratings ? BiologyCells, tissues and organsB2GCSEAQA Created by: 12dalelCreated on: 12-11-16 16:05 What do animal cells contain? - Cell membrane -Ribosomes -Mitochondria -Cytoplasm -Nucleus 1 of 21 What does the cell membrane do? Controls what goes into and out of the cell 2 of 21 What do ribosomes do? Where protein synthesis takes place, Proteins are made here 3 of 21 What do the mitochondria do? They are where energy is released in respiration 4 of 21 What does the cytoplasm do? A liquid gel where most chemical reactions take place 5 of 21 What does the nucleus do? It controls what goes on in the cell. It contains the genes for the cell 6 of 21 What extra things does a plant cell contain? -Cell wall -Permanent Vacuole -Chloroplasts 7 of 21 What does the cell wall do? Gives the cell structure and strengthens it 8 of 21 What does the permanent vacuole do? Filled with cell sap, keeps the cell rigid 9 of 21 What do the chloroplasts do? They contain chlorophyll which absorbs light energy to make food by photosynthesis 10 of 21 What is a bacterial cell like? The genetic material is not contained in a nucleus 11 of 21 What are specialised cells? Cells that carry out a particular function 12 of 21 What are some examples of specialised cells? -Sperm cells -fat cells -Cone cells -root hair cells 13 of 21 What is diffusion? It is the net movement of particles from an area of high concentration to one of low concentration. This is how substances move in and out of cells 14 of 21 What affects the rate of diffusion? -The concentration gradient -the temperature 15 of 21 What is a tissue? A group of cells with similar structure and function 16 of 21 What is an organ? Made up of a group of tissues . 17 of 21 What are transport tissues in plants? Xylem and Phloem 18 of 21 What do many organs have to make diffusion quicker? Large surface areas 19 of 21 What are organ systems? A group of organs working together for a particular function 20 of 21 What are some plant organs? -Roots -Leaves -stems 21 of 21
Test your basic knowledge of cells, tissues & organs before you start studying this lesson so you can see what to concentrate on. 0.0 / 5
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