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WorksheetsMembranes
Total questions: 15
Worksheet time: 9mins
All cell membranes are a complex mixture which consist of:
amino acids and lipids
proteins and lipids
nucleic acids and amino acids
carbohydrates and amino acids
What is the lipid flip-flop?
moving from cytosol to membrane
movement in the limit one membrane layer
moving from cell to cell
moving lipids from one membrane layer to another
Determine a typical transmembrane protein:
spectrin
rhodopsin
glycophorin
fibronectin
Determine the enzyme marker of Golgi complex membranes:
Na+-K+-ATPaze
glucose-6-phosphatase
ATP-synthetase
galactosyltransferase
Where synthesized integral proteins?
on the membranes of endoplasmic reticulum
in ribosomes which localised in cytosol
in Golgi apparatus
in nucleus
What disease associated with metabolic disorders of sphingolipids?
Kartagener syndrome
Tay–Sachs disease
Ehlers-Danlos Syndrome
Zellweger syndrome
Where synthesized lipids of membrane?
Who have proposed a membrane model of protein-lipid mosaic?
Zinger and Lederberg
Hershey and Chase
Singer and Nicolson
Beadle and Tatum
How do membrane proteins and lipids transfer from the synthesis site to the plasma membrane?
transport vesicles
transport proteins
by concentration gradient
proteins of chaperones
Special transmembrane proteins, that can specifically bind to information molecules and transmit signals inside the cell are called …
connexon
ligands
desmosome
receptors
ganglioside
cholesterol
phosphoglyceride
glycolipid
The outer coat of a eukaryotic cell, composed of oligosaccharides linked to intrinsic plasma membrane glycoproteins and glycolipids, as well as proteins that have been secreted and reabsorbed onto the cell surface.
lipid raft
lumen
carbohydrate layer
liposome
Any glycolipid having one or more sialic acid residues in its structure; especially abundant in the plasma membranes of nerve cells.
ganglioside
phospholipid
cholesterol
Phosphatidylserine
(a)
Function of membrane proteins
(a)
