TEST BANK – LEHNINGER PRINCIPLES OF
BIOCHEMISTRY 8TH EDITION BY NELSON |
COMPLETE CHAPTERS 1–28 STUDY GUIDE
◉ Glucose transport into erythrocytes. Answer: is an example of
passive transport.
◉ ΔGt. Answer: will have a negative sign when a monovalent cation
is being imported into a cell in the absence of a concentration
gradient.
◉ fluidity of lipid side chains. Answer: is generally increased by an
increase in the number of double bonds in fatty acids.
◉ choline-containing lipids. Answer: are typically found in the outer
leaflet of plasma membranes, including sphingomyelin and
phosphatidylcholine.
◉ fatty acid composition in skin cells vs internal organs. Answer: is
different because the internal organs function at a slightly higher
temperature, leading to higher levels of 18:2 relative to 18:0 in skin
cells.
, ◉ membrane fusion processes. Answer: entry of glucose into cells
does NOT involve the fusion of two membranes or two regions of the
same membrane.
◉ transporter for lipids. Answer: a flippase moves lipids from the
outer leaflet to the cytosolic leaflet of a plasma membrane.
◉ membrane transport using ion gradients. Answer: is secondary
active transport.
◉ free-energy change for K+ transport. Answer: is about 15 kJ/mol
when transporting K+ from blood into an erythrocyte.
◉ lipid to protein ratio in E. coli. Answer: is about 200 molecules of
membrane lipid for each molecule of protein.
◉ general feature of lipid bilayer. Answer: Individual lipid molecules
are free to diffuse laterally on the surface of the bilayer.
◉ true statement about membranes. Answer: Sterol lipids are
common in human cell plasma membranes.
BIOCHEMISTRY 8TH EDITION BY NELSON |
COMPLETE CHAPTERS 1–28 STUDY GUIDE
◉ Glucose transport into erythrocytes. Answer: is an example of
passive transport.
◉ ΔGt. Answer: will have a negative sign when a monovalent cation
is being imported into a cell in the absence of a concentration
gradient.
◉ fluidity of lipid side chains. Answer: is generally increased by an
increase in the number of double bonds in fatty acids.
◉ choline-containing lipids. Answer: are typically found in the outer
leaflet of plasma membranes, including sphingomyelin and
phosphatidylcholine.
◉ fatty acid composition in skin cells vs internal organs. Answer: is
different because the internal organs function at a slightly higher
temperature, leading to higher levels of 18:2 relative to 18:0 in skin
cells.
, ◉ membrane fusion processes. Answer: entry of glucose into cells
does NOT involve the fusion of two membranes or two regions of the
same membrane.
◉ transporter for lipids. Answer: a flippase moves lipids from the
outer leaflet to the cytosolic leaflet of a plasma membrane.
◉ membrane transport using ion gradients. Answer: is secondary
active transport.
◉ free-energy change for K+ transport. Answer: is about 15 kJ/mol
when transporting K+ from blood into an erythrocyte.
◉ lipid to protein ratio in E. coli. Answer: is about 200 molecules of
membrane lipid for each molecule of protein.
◉ general feature of lipid bilayer. Answer: Individual lipid molecules
are free to diffuse laterally on the surface of the bilayer.
◉ true statement about membranes. Answer: Sterol lipids are
common in human cell plasma membranes.
