In an analysis of a new bacterial species, a microbiologist finds that the bacteria has an outer layer comprised primarily of proteins. This layer of proteins is known as a glycocalyx.
Answer the following statement true (T) or false (F)
False
An outer layer comprised of proteins on a prokaryotic cell is known as an S-layer.
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Osmolarity is the ____
a. total solute plus solvent concentration in a solution b. total solvent concentration in a solution c. ratio of solvent to solute in a solution d. total solute concentration in a solution e. ratio of solute to solvent in a solution
Which group of protists consumes CO2 and produces O2 for much of Earth, serving as the base of food webs in lakes, streams, and the oceans?
A. algae B. radiolarians C. amoeba D. protozoa E. slime mold
Two suspensions containing two different phages were accidentally mixed, and then a single drop of the mixed suspension was placed onto an agar plated swabbed with bacteria. If, after 24 hours a plaque appeared, could you use that data to determine what strain the bacteria belong to?
A) Yes, you could assume both phages helped make the plaque. B) No, you wouldn’t know which phage caused the plaque.
Glycocalyx does not help avoid phagocytosis.
Indicate whether the statement is true or false.