What is added to a medium when it is desirable to grow bacteria on a solid medium?
a) Glucose
b) Magnesium sulfate
c) Sodium thioglycollate
d) Agar
Ans: d) Agar
You might also like to view...
Marine microbes inhabit sediments on the ocean floor at a depth of up to at least ________.
A. one foot B. 100 feet C. 0.6 kilometers D. ten feet
What percentage survived after treatment B?
a. 30 percent b. 50 percent c. 70 percent d. 75 percent
Beta-blockers are a class of drugs that target beta-adrenergic receptors, blocking the action of epinephrine and norepinephrine. These drugs are used to treat heart conditions, hypertension, glaucoma, and migraine headaches and are also used off-label to alleviate stage fright in performers. Since the beta-adrenergic receptor is a GPCR, what intracellular event is prevented by the use of a beta-blocker?
A. a protein kinase cascade, initiated by the receptor's intracellular kinase domain B. release of an activated G protein subunit bound to GTP C. transport of the receptor-hormone complex into the cell and the nucleus, where it would regulate transcription D. a protein phosphatase cascade, initiated by the receptor's intracellular phosphatase domain Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about G protein-coupled receptors? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Patchiness of the soft-bottom benthos is a result of:
a. uneven distribution of food. b. uneven distribution of sediments on the bottom. c. low concentrations of nutrients on the bottom. d. uneven distribution of predators.