Membranes

   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