Week 1 Flashcards
Does the cytosol include the organelle?
No, the cytoplasm does.
Functions of the epithelia.
Protection, secretion, absorption, filtration, exchange and sensation.
What is a hypertonic solution?
It has a low water potential, lots of solute in it.
What happens when mRNA for a membrane bound protein leaves the nucleus?
It binds to the ribosome and the first few codons are translated. This produces a sequence of amino acids which are recognised by the SRP protein. The SRP protein binds to the ribosome and translation stops. The SRP protein then takes the ribosome to the ER.
Where do clathrin, COP1 and COP2 transport proteins in vesicles?
Clathrin transports proteins from the cell membrane and between golgi and endosomal compartments. COP1 transports proteins from the golgi. COP2 transports proteins between the ER and golgi.
What is N-linked and O-linked glycosylation?
N-linked is where sugars are added to the nitrogen in the R group of Asparagine. O-linked is where sugars are added to the R group of Threonine or Serine.
Where is transcellular fluid found?
Eyes, spinal, joints
What does the endosome do?
Processes internalised proteins.
What is glycosylation and where does it occur?
This is when sugars are added to proteins and occurs in the golgi.
What do haematoxylin and eosin stain?
Haematoxylin stains the nuclei, eosin stains the cytoplasm.
Do sodium ions have a higher concentration inside or outside the cell?
Outside.
