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- Created by: ilovethemanics
- Created on: 29-04-19 20:01
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- What Happens In Cells?
- DNA
- Found in the nucleus of eukaryotic cells.
- Floats freely in long strands in prokaryotes.
- Chromosomes are long molecules of DNA. Most people have 46 of them.
- Half of your chromosomes are inherited from mommy, the other half from daddy.
- DNA is split into sections called genes.
- Codes genes carry determine which proteins will be made.
- DNA consists of two strands, which are joined together by bases.
- Strands are then twisted together. This forms a double helix.
- DNA is a polymer.
- Base Pairings:
- Gemma Collins
- Tall Apple
- A = Adenine
- T= Thymine
- C = Cytosine
- G= Guanine
- Nucleotides are made up of deoxyribose, a phosphate and a base.
- Enzymes
- Enzymes are made up of proteins.
- They are biological catalysts.
- In the body they build larger molecules from smaller ones such as through protein synthesis.
- Break down larger molecules into smaller ones, through digestion.
- Made up of long chains of amino acids.
- Shape is important, molecule and other substances bind to the enzyme.
- This is called the active site.
- Lock and Key Hypothesis
- One key will fit the lock and be able to open the door.
- Enzyme Reactions
- Temperature
- Higher temperature means enzyme and substrates molecules react more quicker.
- If the temperature become to high, enzymes become de natured.
- pH
- Each enzyme has a optimum pH.
- The wrong pH means enzymes are natured.
- Concentration
- The higher the concentration of an enzyme, the more they collide.
- Temperature
- DNA
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