MCB3020 Bacusmo Exam 4 ACTUAL
Questions and CORRECT Answers
An organism characterized
by having cells containing
DNA in a membrane-bound
organelle
Prion
Viroid
Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Eukaryote
An organism characterized
by having a cell lacking a membrane-bound nucleus
Prion
Viroid
Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Prokaryote
An infectious agent
consisting of only protein
Prion
Viroid
,Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Prion
An infectious agent
consisting of only RNA
Prion
Viroid
Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Viroid
An infectious agent made
up of protein, nucleic acids
and sometimes a lipid
membrane
Prion
Viroid
Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Virus
Pasteur's Experiment - CORRECT ANSWER - Best known for the swan-neck flasks used
to keep microbes from "falling" out of the air into the sterile broth within the flasks.
,He heated the broth initially to kill any microbes and thereafter, the flasks sat for months without
becoming full of thriving, living microbes.
Only when the swan-neck flask was broken or the dust that accumulated in the bend of the swan-
neck that was allowed back into the flask did the flask become contaminated with microbes.
Koch's Postulates - CORRECT ANSWER - 1. The microorganism must be present in
every case of the disease bu absent from healthy organisms.
2. The suspected microorganisms must be isolated and grown in a pure culture.
3. The same disease must result when the isolates microorganism is inoculated into a healthy
host.
4. The same microorganisms must be isolated again from the diseased host.
- Used for the determination of causes of infectious disease.
Antiseptic surgery was pioneered by
Pasteur.
Lister.
Jenner.
Kitasato. - CORRECT ANSWER - Lister
Proteins are synthesized on structures called
lysosomes.
ribosomes.
, chromosomes.
mesosomes. - CORRECT ANSWER - ribosomes
Which of the following is a function of the mitochondrion?
-Electron transport
-Tricarboxylic acid cycle enzyme reactions
-ATP synthesis
-All of the choices are correct. - CORRECT ANSWER - All of the choices are correct.
The organelle responsible for harvesting light as an energy source for photosynthesis is the
chloroplast.
centriole.
mitochondrion.
kinetoplast. - CORRECT ANSWER - chloroplast.
T/F: The cell membrane is a rigid structure that provides bacteria with their characteristic shapes.
- CORRECT ANSWER - False
The most important distinguishing feature of eukaryotes that is lacking in prokaryotes is
-the DNA replication mechanism
-the division of the cell into compartments bounded by membranes.
-the cell respiration process which if fundamentally different in prokaryotes.
-the presence of a cell wall in eukaryotes. - CORRECT ANSWER - the division of the cell
into compartments bounded by membranes.
Questions and CORRECT Answers
An organism characterized
by having cells containing
DNA in a membrane-bound
organelle
Prion
Viroid
Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Eukaryote
An organism characterized
by having a cell lacking a membrane-bound nucleus
Prion
Viroid
Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Prokaryote
An infectious agent
consisting of only protein
Prion
Viroid
,Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Prion
An infectious agent
consisting of only RNA
Prion
Viroid
Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Viroid
An infectious agent made
up of protein, nucleic acids
and sometimes a lipid
membrane
Prion
Viroid
Prokaryote
Virus
Eukaryote - CORRECT ANSWER - Virus
Pasteur's Experiment - CORRECT ANSWER - Best known for the swan-neck flasks used
to keep microbes from "falling" out of the air into the sterile broth within the flasks.
,He heated the broth initially to kill any microbes and thereafter, the flasks sat for months without
becoming full of thriving, living microbes.
Only when the swan-neck flask was broken or the dust that accumulated in the bend of the swan-
neck that was allowed back into the flask did the flask become contaminated with microbes.
Koch's Postulates - CORRECT ANSWER - 1. The microorganism must be present in
every case of the disease bu absent from healthy organisms.
2. The suspected microorganisms must be isolated and grown in a pure culture.
3. The same disease must result when the isolates microorganism is inoculated into a healthy
host.
4. The same microorganisms must be isolated again from the diseased host.
- Used for the determination of causes of infectious disease.
Antiseptic surgery was pioneered by
Pasteur.
Lister.
Jenner.
Kitasato. - CORRECT ANSWER - Lister
Proteins are synthesized on structures called
lysosomes.
ribosomes.
, chromosomes.
mesosomes. - CORRECT ANSWER - ribosomes
Which of the following is a function of the mitochondrion?
-Electron transport
-Tricarboxylic acid cycle enzyme reactions
-ATP synthesis
-All of the choices are correct. - CORRECT ANSWER - All of the choices are correct.
The organelle responsible for harvesting light as an energy source for photosynthesis is the
chloroplast.
centriole.
mitochondrion.
kinetoplast. - CORRECT ANSWER - chloroplast.
T/F: The cell membrane is a rigid structure that provides bacteria with their characteristic shapes.
- CORRECT ANSWER - False
The most important distinguishing feature of eukaryotes that is lacking in prokaryotes is
-the DNA replication mechanism
-the division of the cell into compartments bounded by membranes.
-the cell respiration process which if fundamentally different in prokaryotes.
-the presence of a cell wall in eukaryotes. - CORRECT ANSWER - the division of the cell
into compartments bounded by membranes.
