Chapter 5 Osmosis

easily diffiuclity bc of hydrophobic part difficulty

Able to cross lipidid bilayer

B, C, and D

B, C, and D A only B only D only C only

Which of the following statements is TRUE with regard to this animation? Sodium ions are transported down their concentration gradient. Both sodium and potassium ions are transported against their concentration gradients. The cell is not expending energy. The cell does not expend ATP. Potassium ions are transported down their concentration gradient

Both sodium and potassium ions are transported against their concentration gradients.

hydrophobic hydrophillic hrydrophillic

Hyrdrophobic or hydrophillic

on the inside surface of a vesicle

In receptor-mediated endocytosis, receptor molecules are initially localized on the outer surface of the plasma membrane. Where do the receptors end up following endocytosis? on the inside surface of the Golgi apparatus on the outer surface of the nucleus on the inside surface of the plasma membrane on the outer surface of a vesicle on the inside surface of a vesicle

a receptor protein that binds with a signaling molecule and relays the message into the cell by activating other molecules inside the cell

In this diagram of the plasma membranes of two adjoining cells, identify the protein indicated by the white arrow, including its function. an attachment protein that provides structural support a receptor protein that binds with a signaling molecule and relays the message into the cell by activating other molecules inside the cell a protein involved in enzymatic activity an active transport protein that moves molecules across a membrane against their concentration gradient a glycoprotein that is involved in cell-cell recognition

A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume? Solution A: 1.4% (m/v) starch Solution B: 7.62% (m/v) starch

Solution A: 1.4% (m/v) starch

A semipermeable membrane is placed between the following solutions. Which solution will increase in volume? Solution C: 9% (m/v) NaCl Solution D: 12.4% (m/v) NaCl

Solution D: 12.4% (m/v) NaCl

glycoprotein

glycoprotein phospholipid cholesterol protein extracellular matrix

hypotonic ... swelled

hypertonic ... lost water hypotonic ... shrunk hypotonic ... swelled hypertonic ... gained water isotonic ... neither lost nor gained water

hypertonic

hypertonic or isotonic hypotonic and isotonic isotonic hypotonic hypertonic

Endocytosis moves materials _____ a cell via _____. into ... facilitated diffusion into ... membranous vesicles into ... a transport protein out of ... membranous vesicles out of ... diffusion

into ... membranous vesicles

What name is given to the process by which water crosses a selectively permeable membrane? phagocytosis passive transport pinocytosis diffusion osmosis

osmosis

Facilitated diffusion is a type of _______. phagocytosis pinocytosis active transport passive transport

passive transport

transport protein

solute transport protein phospholipid solvent water molecule

Which of the following would be a factor that determines whether the molecule selectively enters the target cells? the phospholipid composition of the target cells' plasma membrane the nonpolar, hydrophobic nature of the drug molecule the concentration of the drug molecule that is transported in the blood the similarity of the drug molecule to other molecules that are transported into the target cells

the similarity of the drug molecule to other molecules that are transported into the target cells

solute

water molecule transport protein solvent solute phospholipid