Unit 1 biology SNAB
- Created by: nushrat
- Created on: 04-04-13 14:45
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- Unit 1 Biology
- Topic 1
- CVD
- Factors
- Build up of atheroma causes plaque and blocks arteries, leads to CVD
- Risk
- Causation
- A causes B
- Correlation
- A and B happen at the same time; a relationship.
- Causation
- Heart and circulation
- Cardiac Cycle
- Ventricular Systole
- High pressure in ventricles AV valves close, blood goes into arteries, SL valves open.
- Atria Systole
- High pressure in attria, AV valves opne blood flows to ventricles.
- Diastole
- Both attria and ventricles relax, blood comes into throughthe veins.
- Ventricular Systole
- Single circulation
- Oxygen and CO2 diffuse through cavities and blood is pumped to heart once.
- Cardiac Cycle
- Factors
- Atherosclerosis
- Endothelium of artery gets damaged
- Cuases inflammatory repsonse, WB cells, forms atheroma
- Build up of atheroma causes plaque and blocks arteries, leads to CVD
- Cuases inflammatory repsonse, WB cells, forms atheroma
- Endothelium of artery gets damaged
- CVD
- Topic 2
- Cistic Fibrosis
- Genetic inheritance
- DNA
- Protein Synthesis
- Translation
- mRNA attaches to ribosome in cytoplasm, tRNA carry codoms and the corresponding amino acid and join to the mRNA. Polypetide chain is formed and dettaches.
- Transcription
- DNA unwinds, RNA is made using DNA templkate and base pairing, Thymine is replaced by Uracil
- Translation
- Protein Synthesis
- Cell membrane
- Transport
- Facilitated diffusion
- Channel proteins
- Osmosis
- Diffusion
- Facilitated diffusion
- Transport
- Cistic Fibrosis
- Topic 1
- Replication
- DNA
- Protein Synthesis
- Translation
- mRNA attaches to ribosome in cytoplasm, tRNA carry codoms and the corresponding amino acid and join to the mRNA. Polypetide chain is formed and dettaches.
- Transcription
- DNA unwinds, RNA is made using DNA templkate and base pairing, Thymine is replaced by Uracil
- Translation
- Protein Synthesis
- Semi-conservative both old and new DNA strands together
- DNA
- Oxygen and CO2 diffuse through cavities and blood is pumped to heart once.
- Structure
- Double helix, 4 nitrogeneous bases; ATCG.
- Phosphate group bonded to a pentose sugar phosphodiester bond and a nitrogen base
- Double helix, 4 nitrogeneous bases; ATCG.
- Structure
- Cell membrane
- Transport
- Facilitated diffusion
- Channel proteins
- Osmosis
- Diffusion
- Facilitated diffusion
- Transport
- Phospholipid bilayer, hydrophillic head facing outwards, hydrophobic tail facing inwards.
- Cell membrane
- Phospholipid bilayer, hydrophillic head facing outwards, hydrophobic tail facing inwards.
- Carrier Proteins
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