Biology- Cell Biology 0.0 / 5 ? BiologyAdaptations of organisms to their environmentGCSEAQA Created by: Martha JacobCreated on: 04-10-18 20:12 What are all living things made of? Cells 1 of 26 Cells can be one of two things- what are they? prokaryotic or eukaryotic 2 of 26 What are prokaryotic cells? Bacteria cells-they are small and simpler 3 of 26 What are eukaryotic cells? include all animal and plant cells and they are complex 4 of 26 What are eukaryotes? organisms made up of eukaryotic cells 5 of 26 What are different parts of the cell called? subcellular structures 6 of 26 What does the Nucleus do? contains genetic material that controls the activities of the cell 7 of 26 What is cytoplasm? Gel-like substance where most chemical reactions happen. contains enzymes which control these reactions 8 of 26 What is a cell membrane? holds the cell together and controls what goes in and out 9 of 26 What is mitochondria? most reactions for aerobic respiration take place here. respiration transfers energy that the cell needs to work 10 of 26 What are ribosomes? this is where proteins are made in the cell 11 of 26 What does a animal cell have? Nucleus, Cytoplasm, Cell membrane, Mitochondria and Ribosomes 12 of 26 What is a cell wall? Its made of cellulose it supports and strengthens the cell 13 of 26 What is a permanent vacuole? contains cell sap (weak solution of sugar and salts) 14 of 26 What is a chloroplast? where photosynthesis occurs which makes food for the plant 15 of 26 What is chlorophyll? found in chloroplasts and it absorbs the light needed for photosynthesis 16 of 26 What are bacterial cells? prokaryotes 17 of 26 What do bacterial cells contain? Cytoplasm, Cell membrane, Cell wall, single circular strand of DNA in the cytoplasm and plasmid (they do not contain chloroplasts or mitochondria 18 of 26 What is differentiation? is the process by which a cell changes to become specialised for its job 19 of 26 What happens as cells develop to become specialised? they develop different cub cellular structures and turn into different types of cells. this allows them to carry out specific functions 20 of 26 What are undifferentiated cells called? Stem cells 21 of 26 Examples of specialised cells Sperm cells, Nerve cells, Muscle cells, Root hair cells, Phloem and Xylem cells 22 of 26 What do chromosomes contain? Genetic information 23 of 26 How are chromosomes shaped? all coiled up 24 of 26 How many chromosomes does a human cell have? 23 pairs 25 of 26 What is mitosis? stage when the cell divides it helps with growth development and repair 26 of 26
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