CH2- CELL DIVISION, DIFFERENTIATION AND ORGANISATION 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: LAUREN.FCreated on: 15-05-16 16:38 Which type of cell division produces two identical cells from the original cell? Mitosis. 1 of 12 Look at the photograph of an onion root tip. How can you identify chromosomes? They appear as thin threads. 2 of 12 What type of cells are produced by meiosis? Gametes or sex cells, the eggs and sperm. 3 of 12 Explain how four gametes are formed from one cell during meiosis. There are two sets of cell division. A body cell divides into two and each divides again. 4 of 12 What do we mean by 'differentiate'? Change into a specialised cell from a stem cell. 5 of 12 Where are stem cells found in adult humans? Bone marrow (there may be stem cells in other tissues, e.g. liver). 6 of 12 What is a tumour? A mass of abnormally growing cells which are dividing in an uncontrolled way. 7 of 12 What are the main causes of cancer? Carcinogens and ionising radiation. 8 of 12 What does glandular tissue produce? Enzymes or hormones. 9 of 12 What is the function of palisade tissue? Photosynthesis. 10 of 12 What are enzymes? Biological catalysts. 11 of 12 Where is soluble food absorbed? The small intestine. 12 of 12
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