In osmosis
A. water moves from extracellular to intracellular compartments.
B. water moves from a region of high water concentration to a region of low water concentration.
C. solutes move from a region of low water concentration to a region of high water concentration.
D. solutes move from a region of high solute concentration to a region of low solute concentration.
E. plasma membranes must be impermeable to water.
B. water moves from a region of high water concentration to a region of low water concentration.
You might also like to view...
Natural selection has fueled the rise in MRSA (methicillin-resistant Staphylococcus aureus) infection by
A) enabling people to use a greater variety of antibiotic drugs to fight the infection. B) inactivating a greater variety of antibiotic drugs. C) enabling certain bacterial variants to survive in the presence of many antibiotic drugs. D) killing all bacteria exposed to antibiotics, including helpful ones.
Four of the five choices listed below relate to
speciation. Select the exception. a. postzygotic b. allopatric c. parapatric d. punctuation e. sympatric
Plasmids are small, circular, supercoiled DNA molecules found in some bacteria. They usually do not carry essential genes, but some plasmids, such as R (resistance) plasmids, carry genes coding for antibiotic resistance. All plasmids have their own origin of replication, so that they are replicated along with the host chromosome and passed along to progeny cells. Only some plasmids possess genes that allow for transmittal to other bacteria by the process of conjugation.
a. true b. false
A child has a history of recurring serious bacterial infections. A blood sample shows lymphocyte levels are a little below normal, and no antibodies to the pathogens are detected in serologic tests. Based on this information, which of the following is
the likeliest diagnosis for this child? A) Bruton-type agammaglobulinemia B) Grave's disease C) severe combined immune deficiency (SCID) D) systemic lupus erythematosus (SLE) E) hemolytic disease of the newborn