Examen
Chapter 10: Membrane Structure TEST BANK MOLECULAR BIOLOGY OF THE CELL, 7TH EDITION BRUCE ALBERTS
- Grado
- Institución
Chapter 10: Membrane Structure TEST BANK MOLECULAR BIOLOGY OF THE CELL, 7TH EDITION BRUCE ALBERTS
[Mostrar más]Vista previa 3 fuera de 21 páginas
Vista previa 3 fuera de 21 páginas
Añadir al carrito
Añadir al carrito
Vendedor
Seguir
UltimateStudyGuide
Comentarios recibidos
Vista previa del contenido
Name: ___________________________ Class: _________________ Date: __________ Chapter 10 : Membrane Structure 1. What is the typical thickness of a lipid bilayer such as the plasma membrane of our cells? a. 0.5 nm b. 5 nm c. 50 nm d. 100 nm e. 500 nm 2. In the following schematic drawing of an abundant plasma membrane phosphoglyceride, which part is positively charged? a. Part A b. Part B c. Part C d. Part D e. Part E 3. Which of the following is NOT correct regarding the molecule whose structural formula is shown below? a. It is an amphiphilic molecule. b. It is a sterol. c. It makes the membrane less permeable to small hydrophilic molecules. d. It is found in membranes of virtually all living cells. e. It affects the fluidity of the lipid bilayer. 4. Which of the following is NOT natura lly found in a eukaryotic membrane? a. Cholesterol b. Phosphatidylinositol c. Sphingomyelin d. Ganglioside G M1 e. Octylglucoside 5. The compound isobutane, formula HC(CH ₃)₃, is added to water. How will it interact with the water molecules? a. The partial negative charge on water will interact with the partial positive on isobutane. b. The partial positive charge on water will interact with the partial negative on isobutane. c. The nonpolar patches on water will interact with the nonpolar patches on isobutane. d. There will be no interaction, because water will form a cage around isobutane. 6. The motion of lipid molecules in a synthetic bilayer can be studied by various techniques. Which of the following has been observed in these systems? a. Phospholipids diffuse rapidly within and b etween the two leaflets of a bilayer. b. An average lipid molecule can diffuse the length of about 2 micrometers in a fraction of a millisecond. c. The flip -flops are very rare for phospholipids but cholesterol molecules flip -flop more often. d. Within a bilayer, l ipid molecules rarely rotate about their long axis, but diffuse laterally at very high rates. 7. Why do liposomes not fuse with one another spontaneously when suspended in an aqueous environment? a. Because fusion requires a large number of flip -flops, which a re very rare. b. Because the hydration shell of the polar head groups of the lipids needs to be removed. c. Because fusion requires micelle formation. d. Because of the rapid lateral diffusion and rotation of the lipid molecules.
Los beneficios de comprar resúmenes en Stuvia estan en línea:
Garantiza la calidad de los comentarios
Compradores de Stuvia evaluaron más de 700.000 resúmenes. Así estas seguro que compras los mejores documentos!
Compra fácil y rápido
Puedes pagar rápidamente y en una vez con iDeal, tarjeta de crédito o con tu crédito de Stuvia. Sin tener que hacerte miembro.
Enfócate en lo más importante
Tus compañeros escriben los resúmenes. Por eso tienes la seguridad que tienes un resumen actual y confiable. Así llegas a la conclusión rapidamente!
Preguntas frecuentes
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
100% de satisfacción garantizada: ¿Cómo funciona?
Nuestra garantía de satisfacción le asegura que siempre encontrará un documento de estudio a tu medida. Tu rellenas un formulario y nuestro equipo de atención al cliente se encarga del resto.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller UltimateStudyGuide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for $26.98. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
45,681 summaries were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now
Vistos recientemente
