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Inside Living Cells
Additional Biology Edexel
| Question | Answer |
|---|---|
| Adenine | A base found in DNA and RNA |
| Aerobic | A process using oxygen. |
| Amino Acids | One of about 20 different small molecules that link together in long chain to form protiens. Often called the building blocks of protiens. |
| Anaerobic | A process the does not use oxygen. |
| Aseptic | Conditions that are free from contamination by unwanted mircoorganisms and used in fermenters. |
| Bases | Chemical groups making up part of the DNA and RNA molecules. The order of bases in the DNA froms the genetic code. |
| Capillary | Very small blood vessels with walls one cell thick. The site of exchange of materials between the blood and cells. |
| Coding | The strand on DNA that carries the genetic code. |
| Cramp | Muscle pain caused by build-up of lactic acid when a muscle is overworked. |
| Cultivated | The growth of organisms, such as plants and mircoorganisms, in controlled conditions. |
| Culture Medium | A liquid in which mircoorganisms are grown. |
| Cytosine | A base found in DNA and RNA. |
| Diffusion | The movement of molecules from a region where they are at high concentration to a region where they are low concentration. |
| DNA | The chemical that makes up genes. (deoxyribonuleic acid) |
| Double Helix | The shape of the DNA molecule, like a twisted ladder. |
| Enzymes | Proteins in cells that control chemical reations. They are biological catalysts. |
| Fermentation | Using mircoorganims to break down nutrients into useful products. |
| Genes | Sequences of DNA inside chromosomes that control the characteristics of an organism. |
| Genetic Code | The intructions carried by the DNA for making a cell and telling it what to do. |
| Glucose | A simple sugar that is broken down in cells to release energy. It is also produced during photosynthesis. |
| Guanine | A base found in DNA and RNA. |
| Insulin | A hormone that controls the level of blood glucose. |
| Latic Acid | The waste product of anaerobic respiration in muscle cells. |
| mRNA | A type of RNA that carries the genetic code out from the nucleus to the cytoplasm during protein synthesis. |
| Mircoorganism | A very small organism that can only been seen through a mircoscope. Bacteria, fungi and viruses are examples. |
| Organelle | A part of a cell with a specific function, such as the nucleus. |
| Polypeptide | A long chian of amino acids. A protein is made of one or more of these folded into a particular shape. |
| Protien | A chemical made of chain of amino acids. Form part of the cells framework or carry out a particular job. |
| Protien synthesis | The way protiens are made in a cell. |
| Respiration | The process of breaking down glucose to release energy which happens in every living cell. Glucose is broken down into carbon dioxide and water to release energy. |
| Ribosome | A tiny organelle in the cytoplasm of the cell where proteins are made. |
| RNA | A chemical similar to DNA that is involed in protein synthesis. |
| Strand | One side of the DNA double helix. The two are joined by bases. |
| Template | A pattern, like a stencil, which can be used over and over agian. The DNA acts as one for the mRNA. |
| Thymine | A based found in DNA. |
| Transcription | The first stage of protien synthesis, where the genetic code in the DNA is converted into a similar code in the mRNA. |
| tRNA | A type of RNA that carries amino acids to the ribosome to be built up into a protein. |
| Translation | The second stage of protien synthesis, where teh genetic code in the mRNA is converted into the sequence of amino acids in a protein. |
| Triplet | A group of three bases in DNA that codes of the placing of an amino acid in a protein during protein synthesis. |
| Danielle | Genius! these are very good im sad i have no ink left in my printer so i cant print them off! |