Membrane Biochemistry Indian Medical PG Flashcards - Medical Study Cards
Master Membrane Biochemistry with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Membrane Biochemistry Flashcard Deck - 29 Cards
Flashcard 1: A _____ binding protein dynamin is involved in pinching off the vesicle formed in clathrin-mediated endocytosis
Answer: GTP
Flashcard 2: _____ is a phospholipid which is a component of the cell membrane and plays a key role in relationship to apoptosis.
Answer: Phosphatidylserine
Flashcard 3: The major GAG synthesized by arterial smooth muscle cells is _____, which binds LDL
Answer: dermatan sulfate
Flashcard 4: GLUT _____, found on Liver and Kidney is a urate transporter
Answer: 9
Flashcard 5: _____ are transmembrane glycoproteins that attach to extracellular matrix constituents such as laminin and fibronectin
Answer: Integrins
Flashcard 6: Exocytosis involves two families of proteins: _____, which help vesicles dock onto the membrane, and SNAREs, which facilitate membrane fusion.
Answer: Rabs
Flashcard 7: The phospholipid _____ is composed of phosphatidylcholine
Answer: lecithin
Flashcard 8: _____ 26 (MIP 26)/Aquaporin 0 in the lens is responsible for maintaining transparency by transporting water and glycerol across the lens.
Answer: Major intrinsic protein
Flashcard 9: _____ and saturated fatty acids decrease the cell membrane fluidity
Answer: Longer
Flashcard 10: _____ is a marker enzyme for plasma membrane
Answer: 5 Nucleotidase
Flashcard 11: The transmembrane domain of GPCRs is made up of _____ amino acids and acts to anchor the receptor to the membrane
Answer: non polar / hydrophobic
Flashcard 12: Is exocytosis an energy dependent process?_____
Answer: Yes
Flashcard 13: With respect to the mass ratio, the cell membrane predominantly consists of?_____
Answer: Proteins (Proteins/Lipids)
Flashcard 14: _____ is the GAG involved in the charge selectiveness of renal glomerular basement membrane.
Answer: Heparan sulfate
Flashcard 15: The lipid molecules in the cell membrane are predominantly _____
Answer: phospholipids
Flashcard 16: Which phospholipid is found only in mitochondria?_____
Answer: Cardiolipin
Flashcard 17: Which membrane has the lowest protein content per gram tissue?_____
Answer: Myelin
Flashcard 18: subunit of the Na+-K+ ATPase pump is a glycoprotein, has one membrane-spanning domain with _____ glycosylation sites
Answer: three
Flashcard 19: SLC26A4 gene encodes for a _____ transport protein common to the thyroid gland and the cochlea.
Answer: chloride iodide
Flashcard 20: _____ substances are those which have both a hydrophilic or polar region and a hydrophobic or nonpolar region.
Answer: Amphipathic
Flashcard 21: _____ exocytosis:Involves prompt transport of proteins to the cell membrane in vesicles, with little or no processing or storage
Answer: Constitutive
Flashcard 22: A phospholipid is made of?_____
Answer: Diglyceride+phosphate+choline or ethanolamine (3)
Flashcard 23: The location of the synthesis of phospholipids is the _____
Answer: smooth endoplasmic reticulum.
Flashcard 24: Which membrane has the highest protein content per gram tissue?_____
Answer: Inner mitochondrial membrane
Flashcard 25: Emeiocytosis or reverse pinocytosis requires which ion directly?_____
Answer: Ca2+
Flashcard 26: Blood group antigens and cell surface receptors for cholera & tetanus toxins are made of what type of phospholipids?_____
Answer: Glycosphingolipids
Flashcard 27: _____ is the protein responsible for the biconcave shape of the RBCs
Answer: Spectrin
Flashcard 28: Vibro cholerae toxin acts on _____ ganglioside receptor on jejunal epithelial cells
Answer: GM1
Flashcard 29: The signaling sequence in a type 2 membrane protein is located _____ the membrane at N-terminal end
Answer: inside
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