Microbes and Society: Chapter 3 Practice Quiz

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Chapter 3 Bacteria: The First Microbes

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor. (Kris.. do you want me to turn on this option?)

1: The bacteria have been on the face of the Earth for approximately:
	A: A thousand years
	B: The same time as humans
	C: Three-and-a-half billion years
	D: A million years

2: A coccus is a bacterium that has the shape of:
	A: A sphere
	B: A long, spiral form
	C: An icosahedron
	D: An amoeba

3: Bacterial spores are a dangerous element in:
	A: Bioremediation
	B: Fermentation reactions
	C: Bioterriorism
	D: Vinegar production

4: Peptidoglycan is found only in the bacterial:
	A: Cell membrane
	B: Glycocalyx
	C: Cell wall
	D: Spore

5: Bacteria having no flagella are unable to:
	A: Move
	B: Reproduce
	C: Cling to tissue surfaces
	D: Grow in nutrient agar

6: The straightforward method of binary fission explains how bacteria:
	A: Eat
	B: Evolve
	C: Move
	D: Reproduce

7: Autotrophic bacteria are those which:
	A: Make their own food
	B: Form a glycocalyx
	C: Are susceptible to penicillin
	D: Produce a blue-green pigment

8: Which of the following bacteria lack a cell wall and are therefore resistant to penicillin:
	A: Cyanobacteria
	B: Mycoplasmas
	C: Bdellovibrios
	D: Spirochetes

9: At the conclusion of the Gram stain technique, a Gram-positive bacterium will appear:
	A: Yellow-green
	B: Orange-red
	C: Blue-purple
	D: Brown-black

10: The location where the bacterial chromosome concentrates in called the:
	A: Nucleus
	B: Nuclein
	C: Nucleoid
	D: Nucleose

Optional: Enter your name and your instructor's E-mail address to have your results E-mailed to him or her.
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