lecture 14 practice questions Flashcards
Which of the following is not considered to be a living thing, but is studied
under microbiology?
a. Bacteria
b. Viruses
c. Yeast
d. Fungi
b. virus
The characteristics of bacterial cells include these, except:
a. They have no nucleus
b. Their DNA is broken into chromosomes, free-floating in the cytoplasm
c. They have a cell wall
d. None
d. none
True or False?
Most bacterial species on Earth are harmful to us
false
After Gram staining, you are looking under the microscope and seeing pink-colored rods in chains. You can characterize them as:
a. Gram-positive streptobacillus
b. Gram-negative streptobacillus
c. Gram-positive streptococcus
d. Gram-negative streptococcus
e. Gram-positive sraphylococcus
b. gram-negative streptobacillus
After two weeks of sitting the fridge, the left-over beef starts to smell foul. You can guess that bacteria multiplying in it performs this type of metabolism:
a. Aerobic respiration
b. Fermentation
c. Obligate anaerobic respiration
d. Photosynthesis
c. obligate anaerobic
Which of the following would NOT cause Clostridium botulinum to Sporulate?
a. High temperature
b. Low pH
c. High pressure
d. Dehydration
e. None - all of the above can cause sporulation
e. none- all of the above can cause sporulation
Germination is
a. Possible, when conditions are favorable for cell division
b. Expected in the absence of water
c. Likely, if large amount of salt is added
d. The same as sporulation
a. possible, when conditions. are favorable for cell division
Which of the following is not a typical use of good bacteria by humans?
a. Food industry
b. Pharmaceutical industry
c. Chemical industry
d. Weapons industry
e. Scientific research
d. weapons industry
Normal flora do the following for the human host, except:
a. Produce vitamin K
b. Produce Biotin
c. Create competition for pathogenic microbes
d. Help digestion and absorption of carbohydrates, proteins, and fats in the
colon
d. help digestion and absorption of carbohydrates, proteins, and fats in the colon
Opportunistic pathogens do NOT
a. Cause disease when the host’s immune system becomes weak
b. Overgrow by excessive mitosis when given a chance
c. Exist as part of normal flora
d. Have a host and parasite relationship with the host
e. None of these
d. have a host and parasite relationship with the host
Bacteria normally living in the human colon
a. Have a symbiotic relationship with the human
b. Produce all the vitamins and minerals for the human
c. Cause cramps and diarrhea
d. Are considered germs
a. have a symbiotic relationship with the human
The outer ear includes:
a. Malleus
b. Vestibule
c. Pinna
d. Tympanic membrane
pinna
The ossicle that gets moved by the vibrations of the tympanic membrane is:
a. Malleus
b. Incus
c. Stapes
d. Stirrup
e. Anvil
a. malleus
The tube that connects the ear to the throat is:
a. Ear canal
b. External auditory canal
c. Semicircular canal
d. Eustachian tube
d. eustachian tube
The function of the ossicles is to:
a. Collect sound waves
b. Amplify sound waves
c. Excite neurons of auditory nerve
d. Interpret sound waves
b. amplify sound waves
