#Question id: 2248
#Unit 2. Cellular Organization
The movement of Na+ ions into an animal cell
a. has a positive ΔG value.
b. is energetically favorable.
c. is chemically favorable.
d. drives the export of Ca2+ in muscle cells.
#Question id: 2249
#Unit 2. Cellular Organization
In intestinal lumen epithelial cells, which of the following occurs by passive transport?
a. import of Na+ on the apical side
b. export of Na+ on the basal side
c. import of glucose on the apical side
d. export of glucose on the basal side
#Question id: 2250
#Unit 2. Cellular Organization
Which of the following is true about cystic fibrosis?
#Question id: 2251
#Unit 2. Cellular Organization
Differences between cotransport and active ion transport include
#Question id: 2252
#Unit 2. Cellular Organization
The generation and maintenance of a membrane electric potential requires which of the following:
a. active pumping of ions
b. ion-specific membrane channel proteins
c. ATP
d. a generally permeable membrane
#Question id: 2253
#Unit 2. Cellular Organization
Match the following lipid linked proteins (column I) with their function (Column II).
|
Column I |
Column II |
|
A. prenylated proteins |
i. These proteins are located in a number of subcellular compartments, including the cytosol, the endoplasmic reticulum, the inner face of the plasma membrane, and the nucleus. |
|
B. fatty acylated proteins |
ii. The core structure of these proteins consists of phosphatidylinositol glycosidically linked to a linear tetrasaccharide composed of three mannose residues and one glucosaminyl residue. |
|
C. glycosylphosphatidylinositol-linked proteins |
iii. The proteins that have covalently attached lipids that are built from isoprene units |