Chapter 11
What is the definitive host for plasmodium (hint: where sexual reproduction occurs)
a) Humans
b) Sporozoites
c) Merozoites
d) Anopheles mosquito
d)
Which of the following is NOT a characteristic of viruses?
a) Obligate intracellular parasites
b) RNA and DNA as genome
c) Can infect every taxonomic group
d) Do not have ribosomes
b) RNA and DNA as genome
Which of the following would be considered a form of sterilization?
a) Commercial sterilization
b) Filtration
c) Pasteurization
d) Autoclave
d) Autoclave
Which is NOT matching with the protist’s mode of locomotion?
a) Amebas use cilia
b) Flagellates us flagella
c) Amebas use pseudopodia
d) Apicomplexans are non-motile
a)
Which polymerase is more accurate?
DNA polymerase
RNA polymerase
DNA polymerase
Which of the following is responsible for the color of red tides?
a) Red algae
b) Dinoflagellates
c) Brown algae
d) Trypanosomes
b)
Which of the following scenarios represents the concept of tissue tropism?
a) Rabies infect only nervous tissues
b) HIV can infect only humans
c) Smallpox has no animal reservoirs
d) The influenza A virus can infect swine, birds, and humans
a) Rabies infect only nervous tissues
Which of the following would you use to sterilize plastic petri plates? Choose the BEST option
a) Autoclave
b) Commercial sterilization
c) Gamma rays
d) Boiling
c) Gamma rays
Which of the following causes minor mutations that lead to a new strain?
Uncoating
Hybridization
Antigenic shift
Antigenic drift
4. antigenic drift
What is the most effective level of alcohol?
a) 100%
b) 90%
c) 70%
d) 30%
c) 70%
An immunocompromised patient has been taking antibiotics but has suddenly developed new symptoms. The doctor suspects it could be a fungal infection due to the decreased number of commensal microbes. The lab tests show that the infection is due to yeast (a single celled fungi) that is known to be an opportunistic pathogen. Which of the following is the BEST possible microorganism that has been causing the patient issues?
a) Naegleria fowleri
b) Acanthamoeba
c) Plasmodium
d) Candida albicans
d)
A student is observing a lytic phage that is placed into a lawn of bacteria. After a few minutes, the student checks back on the agar plate to see no clear plaques. What might be the BEST reason for this?
a) The eclipse period is happening
b) The rise period is happening
c) There isn’t enough phages
d) The phage is in lysogeny
a) The eclipse period is happening
Which of the following describes the magic bullet concept the best?
a) Using a broad spectrum antibiotic to kill as many bacteria as possible
b) Using cellular membrane inhibitors to target only bacteria without harming eukaryotes
c) Using a DNA inhibitor to target only eukaryotes without harming bacteria
d) Using peptidoglycan as the antibiotic target to only kill bacteria without harming eukaryotes
d) Using peptidoglycan as the antibiotic target to only kill bacteria without harming eukaryotes
Which of the following is NOT a characteristic for fungi mycelium?
a) Forms when hyphae extend and form branches
b) Increases surface area for enzymes to work
c) Fights off competition of other fungi
d) Helps absorption of nutrients
c) Fights off competition of other fungi
Where does the sporozoite undergo schizogony (asexual reproduction) in humans to produce merozoites?
a) Pancreas
b) Liver
c) Gallbladder
d) Lungs
b) Liver
During the plasmodium life cycles, it will use a specialized structure called the apical complex to allow it to invade other red blood cells. What is this stage called?
a) Asexual stage
b) Schizogony stage
c) Ring stage
d) Anopheles stage
c) Ring stage
An animal virus attaches onto the host cell and gains entry inside. What is going to be the next step for this virus?
a) Genome expression
b) Maturation
c) Synthesis of proteins
d) Uncoating
d) Uncoating
Sulfonamides mimic an important intermediate for ______ and acts like a _______ (fill in blanks)
a) Folic acid synthesis; incompetitive inhibitor
b) Folic acid synthesis; competitive inhibitor
c) PABA synthesis; incompetitive inhibitor
d) PABA synthesis; competitive inhibitor
b) Folic acid synthesis; competitive inhibitor
Which of the following is a protein synthesis inhibitor?
a) Quinolones
b) Polymyxin
c) Vancomycin
d) Chloramphenicol
d) Chloramphenicol
Which of the following represents the equation for the Chemotherapeutic index?
a) Toxic dose / therapeutic dose
b) Therapeutic dose / toxic dose
c) Therapeutic dose x toxic dose
d) Therapeutic dose + toxic dose
a) Toxic dose / therapeutic dose
Which of the following is the intermediate host for plasmodium (where asexual reproduction occurs)?
a) Humans
b) Sporozoites
c) Merozoites
d) Anopheles mosquito
a) Humans
Reverse transcriptase has three activities. Which of the following is NOT an activity included in reverse transcriptase?
a) RNA-dependent DNA polymerase
b) DNA-dependent RNA polymerase
c) DNA-dependent DNA polymerase
d) RNase H
b) DNA-dependent RNA polymerase
As the aminoglycoside did not reach the maximum effectiveness for the patient, the pharmacist decided to prescribe vancomycin also. This increases the effectiveness of the drug and makes the combined effect greater than the additive effect). What am I describing?
a) Antagonism
b) Additivism
c) Synergism
d) Effectivism
c) Synergism
Which of the following is one of the host cell receptors that HIV is able to recognize?
a) CCR3
b) CCR2
c) CD4
d) CD5
c) CD4
Which of the following viral genome groups does NOT use RNA-dependent RNA polymerase within their activity?
Retroviruses
ssRNA (+)
ssRNA (-)
dsRNA
1. Retroviruses