Unit 1 Topic 2
- Created by: Alex Cole
- Created on: 02-01-13 11:37
View mindmap
- Unit 1 Topic 2
- Cell membrane
- Phospholipid bilayer
- non polar
- fatty acid tail and the phosphate head
- Proteins
- made up of C,H,O,N
- contain an R group
- a carboxyl group
- an amine group
- different shapes
- Osmosis
- the movement of water from high to low concentration
- isotonic
- equal
- hypertonic
- lower
- hypotonic
- higher
- Transport across the Membrane
- polar molecules pass through peripheral proteins
- diffusion
- ficilitated diffusion
- osmosis
- exocytosis
- endocytosis
- active transport
- Lungs
- breathing is an active process
- alveoli are one cell thick
- short diffusion distance
- capillary walls are one cell thick
- the surface of the alveoli is folded to increase surface area
- DNA
- deoxyribonucleic acid
- codes for proteins
- triplet code
- double stranded
- double helix
- made up of a pentose sugar
- phosphate group
- nitrogenous base
- DNA nucleotide
- mRNA
- tRNA
- Cystic Fibrosis
- caused by a mutated gene
- affects the movement of salt and water in the body
- causes thick mucus
- affects the lungs and the digestive system
- treatments include physiotherapy and medication
- Cell membrane
Comments
Report