The cell walls of fungi are composed of:
A. chitin
B. cellulose
C. dentine
D. peptides
E. glycerol
A. chitin
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Agar is an excellent solidifying agent for microbiological media because
A. it is not degraded by most microorganisms and solid agar remains solid until the temperature is raised to 90°C, and liquid agar remains liquid if the temperature is lowered to 45°C are correct. B. it is not degraded by most microorganisms. C. solid agar remains solid until the temperature is raised to 90°C, and liquid agar remains liquid if the temperature is lowered to 45°C. D. agar provides an excellent source of nutrition for a variety of different microorganisms.
What kind of pathogen would retain its ability to cause infections after being treated with powerful proteolytic chemicals that would destroy all proteinaceous material?
A. A virus B. A prion C. A fungus D. A bacterium E. A viroid 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 viroids? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
Triiodothyronine (T3) is secreted by
a. pancreatic islet cells. b. the thyroid gland. c. the pituitary gland. d. the adrenal medulla. e. the adrenal cortex.
miRNA is capable of regulating protein production through which process?
What will be an ideal response?