B3 3.0 / 5 based on 1 rating ? ScienceBiologyGCSEEdexcel Created by: IzzieCaitlinCreated on: 12-01-13 15:22 What structure is in the cytoplasm? The mitochondria 1 of 9 What happens in the mitochondria? Respiration occurs, which provides the energy for life process 2 of 9 Where are chromosomes and what do they contain? In the nucleus and they contain the genetic code 3 of 9 How many mitochondria are there in the cytoplasm of a cell? It depends on the activity of the cell 4 of 9 Why do cells such as liver and muscle cells have large numbers of mitochondria? The liver carries out many functions and muscle cells need to contract. Therefore both types of cell need lots of energy 5 of 9 What are the chromosomes in the nucleus made of? DNA 6 of 9 What do genes control? The activity of the cell and the organism by coding for proteins 7 of 9 What are the proteins that a cell produces needed for? Growth and repair 8 of 9 Each gene is... A section of a chromosome made of DNA 9 of 9
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