bio test 3 Questions With Complete
Solutions
which of the following organelles or structure is primarily involved in the synthesis of
lipids, bile, and drug detoxification? - SOLVED ANSWER-smooth endoplasmic
reticulum
the Golgi apparatus has a polarity or sidedness to its structure and function. Which of
the following statements correctly describes this polarity? - SOLVED ANSWER-all of the
above correctly describe polar characteristics of the Golgi function
hydrolytic enzymes must be segregated and packaged to prevent general destruction of
cellular components. Which of the following organelles contains such hydrolytic
enzymes in plant cells? - SOLVED ANSWER-central vacuole
one of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is
the endomembrane system. Which of the following gives rise to and/or is a significant
part of this endomembrane system? - SOLVED ANSWER-outer nuclear membrane
motor proteins provide for molecular motion in cells by interacting with what types of
cellular structures? - SOLVED ANSWER-cytoskeletal proteins and structures
which of the following statements about the cytoskeleton is a false statement? -
SOLVED ANSWER-the smooth endoplasmic reticulum is responsible for the assembly
of the cytoskeleton
plasmodesma in plant cells are most similar in function to which of the following
structures in animal cells? - SOLVED ANSWER-gap junctions
, GTPase activity is involved in the regulation of signal transduction because it? -
SOLVED ANSWER-hydrolyzes the GTP bound to a G-protein
the relatively new discipline that applies statistics, information theory, and computational
methodologies to biological data is referred to as? - SOLVED ANSWER-bioinformatics
of the following what is the most likely pathway taken by a newly synthesized protein
that will be secreted by an animal cell? - SOLVED ANSWER-ER > Golgi > vesicles that
fuse with a cell's plasma membrane
which of the following factors would most likely lead to increase membrane fluidity? -
SOLVED ANSWER-a greater proportion of unsaturated phospholipids
you are working on a team that is designing a new drug. In order for this drug to work, it
must enter the cytoplasm of specific target cells. Which of the following would be a
factor that might best determine whether your molecule could selectively enter into
these target cells? - SOLVED ANSWER-a high hydrophobicity of the drug molecule
a patient has had a serious accident and lost a lot of blood. In an attempt to replenish
body fluids, an equal volume of distilled water to the amount of blood loss is transferred
directly into one of her veins. What will be the most probable? - SOLVED ANSWER-the
patient's red blood cells will swell because the blood fluid has become hypotonic
compared to the cells
which of the following membrane activities requires energy from ATP hydrolysis? -
SOLVED ANSWER-Na+ ions moving out of the mammalian cell
water passes quickly through membranes because? - SOLVED ANSWER-it moves
through aquaporin proteins in the membrane
Solutions
which of the following organelles or structure is primarily involved in the synthesis of
lipids, bile, and drug detoxification? - SOLVED ANSWER-smooth endoplasmic
reticulum
the Golgi apparatus has a polarity or sidedness to its structure and function. Which of
the following statements correctly describes this polarity? - SOLVED ANSWER-all of the
above correctly describe polar characteristics of the Golgi function
hydrolytic enzymes must be segregated and packaged to prevent general destruction of
cellular components. Which of the following organelles contains such hydrolytic
enzymes in plant cells? - SOLVED ANSWER-central vacuole
one of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is
the endomembrane system. Which of the following gives rise to and/or is a significant
part of this endomembrane system? - SOLVED ANSWER-outer nuclear membrane
motor proteins provide for molecular motion in cells by interacting with what types of
cellular structures? - SOLVED ANSWER-cytoskeletal proteins and structures
which of the following statements about the cytoskeleton is a false statement? -
SOLVED ANSWER-the smooth endoplasmic reticulum is responsible for the assembly
of the cytoskeleton
plasmodesma in plant cells are most similar in function to which of the following
structures in animal cells? - SOLVED ANSWER-gap junctions
, GTPase activity is involved in the regulation of signal transduction because it? -
SOLVED ANSWER-hydrolyzes the GTP bound to a G-protein
the relatively new discipline that applies statistics, information theory, and computational
methodologies to biological data is referred to as? - SOLVED ANSWER-bioinformatics
of the following what is the most likely pathway taken by a newly synthesized protein
that will be secreted by an animal cell? - SOLVED ANSWER-ER > Golgi > vesicles that
fuse with a cell's plasma membrane
which of the following factors would most likely lead to increase membrane fluidity? -
SOLVED ANSWER-a greater proportion of unsaturated phospholipids
you are working on a team that is designing a new drug. In order for this drug to work, it
must enter the cytoplasm of specific target cells. Which of the following would be a
factor that might best determine whether your molecule could selectively enter into
these target cells? - SOLVED ANSWER-a high hydrophobicity of the drug molecule
a patient has had a serious accident and lost a lot of blood. In an attempt to replenish
body fluids, an equal volume of distilled water to the amount of blood loss is transferred
directly into one of her veins. What will be the most probable? - SOLVED ANSWER-the
patient's red blood cells will swell because the blood fluid has become hypotonic
compared to the cells
which of the following membrane activities requires energy from ATP hydrolysis? -
SOLVED ANSWER-Na+ ions moving out of the mammalian cell
water passes quickly through membranes because? - SOLVED ANSWER-it moves
through aquaporin proteins in the membrane
