For queries or advice and help, my email is: n-eld@live.co.uk

^-^

Tuesday 19 January 2010

More notes from before exam.

Water Soluble = Polar molecule, therefore, cannot pass through phospholipid bilayer. Goes through protein channelsas they have hydrophyllic linings.

Lipid Soluble = Non Polar, /will/ pass through (directly) the phospholipid bilayer.

Boiling an enzyme will denature it, therefore, it looses it's tertiary shape, and cannot function. The substrate will not be hydrolysed.

What would happen to need a coronary by-pass thingy:
  1. Atheroma would form (fatty, cholesterol build up in lungs.)
  2. This would be on the lining/epithelium/lumenof the coronary artery (all good words to use, those.)
  3. This reduces/obstructs the blood-flow.

Higher salt intake= Higher BP, because... Ion intake (Na+,Cl-) increases, therefore, water potnetial is lower, and water then moves into the blood, increasing it's volume, andtherefore, proportionally, the pressure increases.

Three components of a triglyceride = Three fatty acids and a glycerol molecule. In a condensation reaction. This is opposite to Hydrolysis.

Disulphide bond- strong, covalent bond between two sulhpur atoms.

The Alpha Helix, and the Beta Pleated Sheet are held together by hydrogen bonds.

When speaking about variables, don't use the word 'amount', but specify, so: Temperature, Volume, pH, Concentration, or even Age.

Don't use the word 'size', use 'volume'.

Glycogen is a storage carbohydrate. I think it is in animals,not 100% sure. Will check andpost later. (:

Carbon dioxide is not produce as quick with lactose as with glucose, as glucose can be used immediatley, whereas an enzyme must be synthesised for lactose.

Scar tissue reduces the surface area for gas exchange through damage.

'Human Error' is generally too vague a statement.

Litigation = Sueing the company.

Why antibodies are much faster when the same antigen enters the body on a second occasion:

  • Memory cells are produced during first respone/exposure.
  • Memory cells recgonise the antigen immediatley, and develop into plasma cells.
  • This is by cloning.
  • Quicker response, as the production of plasma cells is quicker.
  • More plasma cells, therefore, more antibodies, = more chance of colliding with, combining with pathogen.

Myocardial Infarction = Heart muscle dying.

That's all, folks :D

-Nin. ^_^

No comments:

Post a Comment