BIO 1201 GREGG EXAM 2 REAL LATEST AND
VERIFIED QUESTIONS WITH CORRECT
ELABORATE SOLUTIONS| ALREADY GRADED A|
ACE YOUR GRADES.
1. Transport proteins - Correct Answer-are responsible for controlling passage
across the membrane
2. Fluid mosaic model - Correct Answer-The membrane is a mosaic of protein
molecules bobbing in a fluid bilayer of phospholipids
3. Fatty acid tails - Correct Answer-nonpolar, hydrophobic
4. Fatty acid heads - Correct Answer-hydrophilic, polar
5. Periphial proteins - Correct Answer-bound to the surface of the membrane
6. Integral proteins - Correct Answer-penetrate the hydrophobic core (ones
that span the membrane are transmembrane protiens
,7. How do cells recognize each other? - Correct Answer-by binding to
molecules, often containing carbohydrates, on the extracellular surface of
the plasma membrane
8. Glycolipids - Correct Answer-Membrane carbohydrates that are covalently
bonded to lipids.
9. Hypdrophobic - Correct Answer-molecules such as hydrocarbons that can
dissolve in the lipid bilayer and pass through the membrane rapidly
10.Hydrophilic - Correct Answer-molecules that don't cross the membrane
easily (ions and polar molecules)
11.Transport proteins - Correct Answer-allow passage of hydrophilic
substances across the membrane
12.Carrier proteins - Correct Answer-bind to molecules and change shape to
shuttle them across the membrane
, 13.Passive transport - Correct Answer-the diffusion of a substance across a
membrane with no energy investment
14.Diffusuion - Correct Answer-Spreading out of particles away from each
other, from an area of high concentration to an area of low concentration.
(move to where space is available)
15.Concentation gradient - Correct Answer-substances diffuse from high
concentration----> low concentration
16.Osmosis - Correct Answer-Diffusion of water through a selectively
permeable membrane
17.Isotonic - Correct Answer-when the concentration of two solutions is the
same (no net movement)
18.Hypertonic - Correct Answer-cell losses water and shrivils
19.Hypertonic - Correct Answer-cell gains water and expands
VERIFIED QUESTIONS WITH CORRECT
ELABORATE SOLUTIONS| ALREADY GRADED A|
ACE YOUR GRADES.
1. Transport proteins - Correct Answer-are responsible for controlling passage
across the membrane
2. Fluid mosaic model - Correct Answer-The membrane is a mosaic of protein
molecules bobbing in a fluid bilayer of phospholipids
3. Fatty acid tails - Correct Answer-nonpolar, hydrophobic
4. Fatty acid heads - Correct Answer-hydrophilic, polar
5. Periphial proteins - Correct Answer-bound to the surface of the membrane
6. Integral proteins - Correct Answer-penetrate the hydrophobic core (ones
that span the membrane are transmembrane protiens
,7. How do cells recognize each other? - Correct Answer-by binding to
molecules, often containing carbohydrates, on the extracellular surface of
the plasma membrane
8. Glycolipids - Correct Answer-Membrane carbohydrates that are covalently
bonded to lipids.
9. Hypdrophobic - Correct Answer-molecules such as hydrocarbons that can
dissolve in the lipid bilayer and pass through the membrane rapidly
10.Hydrophilic - Correct Answer-molecules that don't cross the membrane
easily (ions and polar molecules)
11.Transport proteins - Correct Answer-allow passage of hydrophilic
substances across the membrane
12.Carrier proteins - Correct Answer-bind to molecules and change shape to
shuttle them across the membrane
, 13.Passive transport - Correct Answer-the diffusion of a substance across a
membrane with no energy investment
14.Diffusuion - Correct Answer-Spreading out of particles away from each
other, from an area of high concentration to an area of low concentration.
(move to where space is available)
15.Concentation gradient - Correct Answer-substances diffuse from high
concentration----> low concentration
16.Osmosis - Correct Answer-Diffusion of water through a selectively
permeable membrane
17.Isotonic - Correct Answer-when the concentration of two solutions is the
same (no net movement)
18.Hypertonic - Correct Answer-cell losses water and shrivils
19.Hypertonic - Correct Answer-cell gains water and expands
