Shared Flashcard Set

Details

CMB Block: General Review
Weeks 1-4
16
Biochemistry
Graduate
10/17/2010

Additional Biochemistry Flashcards

 


 

Cards

Term
What are the four main types of tissue found in the body?
Definition

epithelial

connective

neural

muscle

Term
What types of glycerolphospholipids have negative charges at physiological pH?
Definition
phosphotidylserine, phosphotidylinisotol, cardiolipin
Term
What is a ceramide?
Definition
A type of sphingolipid that has a amide linkage and one unsaturated fatty acid chain and one saturated fatty acid chain
Term
Where is cardiolipin exclusively found and in what membrane is it most abundant?
Definition
inner and outer mitochondrial membrane, more abundant in inner membrane
Term
What is the difference between a controlled variable versus a regulated variable?
Definition
A regulated variable is kept more or less constant while values of the controlled variable to be changed more widely
Term
Name an example of a regulated variable in human physiology
Definition

mean arterial pressure

carbondioxide and oxygen partial pressure

hypothalamic temperature

arterial pH

serum calcium concentration

Term
How does the diffusion rate vary by distance?
Definition

diffusion rate varies by x^2

 

Term
What variables determine flux in Fick's Law
Definition

area

permeability

concentration

Term
What are the types of protein mediated transport? What is one example of each?
Definition

passive and active transport

channels

pumps

 

Term
What is the main difference between channels and carriers?
Definition
Channels are usually much faster than carriers in transporting substrates.
Term
What are examples of transport carriers located in the basal membrane side of epithelial cells?
Definition

Na/K pump (ATPase)

Na/K/2Cl cotransporter

H+ pump

 

Term
What are examples of transport proteins found in the apical membrane of epithelial cells?
Definition

Na/Glucose cotransporter

CFTR (cystic fibrosis transmembrane receptor)

Term
What is the molecular basis of cystic fibrosis?
Definition

CFTR mutation results in impaired function or less of Cl- channel, that result in less secretion of Cl-, Na+, and water. In lungs, where reabsorption of Na+ and water is reduced, this mutation causes secretion from lungs to be dry and thick

Term
What are the clinical features of cystic fibrosis?
Definition
salty sweat, jaundice, thick mucus in lungs and other bronchopleural issues, mucous plugs in intestines, infertility, pancreatic issues resulting in fat in fecal material
Term
What is the biggest difference between Northern Blot and Souther Blot other than the genetic material used?
Definition
Since Northern Blot uses RNA, the sample does not need to be digested with endonucleases like Southern Blot, which uses DNA
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