Prokaryotic Structure
Which of the following are present in ALL prokaryotic cells? (Select two correct)
A. Nucleus
B. Plasma membrane
C. Ribosomes
D. Lysosomes
What is Plasma membrane & Ribosomes? (B,C )
Which two statements about bacterial cell walls are incorrect?
A. Gram-positive walls are thick and contain teichoic acids
B. Gram-negative bacteria have lipopolysaccharide in their outer membrane
C. All bacteria have cell walls made of cellulose
D. Mycobacteria's cell wall contains waxy mycolic acids
What is all bacteria have cell walls made of cellulose?
Which two statements about catabolism are correct?
A. Breaks down molecules
B. Requires energy
C. Releases energy
D. Synthesizes macromolecules
What is breaks down molecules and releases energy
Which two are correct regarding fermentation?
A. Occurs in presence of oxygen
B. Produces lactic acid in some microbes
C. Regenerates NAD+
D. Produces more ATP than respiration
What is produces lactic acid in some microbes & regenerates NAD+
Which two domains are composed of prokaryotic cells?"
A. Bacteria
B. Eukarya
C. Fungi
D. Archaea
"Which two statements about prokaryotic cell features are incorrect?"
A. All prokaryotes contain a nucleoid
B. All prokaryotes have membrane-bound organelles
C. Prokaryotic DNA is circular
D. Prokaryotic cells perform binary fission
What is all prokaryotes have membrane bound organelles?
Which following statement(s) about Gram-positive and Gram-negative bacteria are correct.
A. Only Gram-negative bacteria have an outer membrane
B. Gram-positive cell wall is thick with teichoic acid
C. Gram-negative bacteria have a thick peptidoglycan layer
D. Lipopolysaccharide is only found in Gram-negative cells
E. Two are correct
F. All are correct
G. None are correct
E. Two are correct (a&d)
Which statement(s) about ATP are incorrect."
A. ATP stores energy
B. ATP is a protein
C. ATP is produced by substrate-level phosphorylation
D. ATP contains ribose
E. ATP is a lipid
F. Two of the above
G. None of the above
What is two of the above (b,e)
Two statements about the Krebs cycle are incorrect.
A. Produces NADH
B. Occurs in the cytoplasm of prokaryotes
C. Uses oxygen directly
D. Generates ATP
What is occurs in the cytoplasm of prokaryotes and uses oxygen directly?
Which of the following scientists were important in disproving spontaneous generation."
A. Redi
B. Pasteur
C. Spallanzani
D. All are correct
E. A & B
F. B & C
G. A & C
What is all are correct?
"Which of the following is never present in prokaryotes?"
A. Peptidoglycan cell wall
B. Lysosome
C. Ribosome
D. Plasma membrane
Which statement(s) about cell walls are incorrect.
A. Mycoplasma lacks a cell wall
B. Archaeal cell walls contain peptidoglycan
C. Gram-positive bacteria have teichoic acids
D. Gram-negative cell walls have an outer membrane
E. All prokaryotes have cell walls
F. Two above are correct
G. none are correct
Metabolism knowledge question. The false statement is...
A. Energy is required to produce ATPs.
B. Generally the food that you eat will ultimately become oxidized by the cells in your body.
C. There are reactions in your body that do not require air (oxygen).
D. You ate a doughnut this morning. Your body generally sees this as a source of electrons.
E. ATPs can be used to provide energy for cellular processes.
F. The oxygen you inhale is converted to water.
G. None of A - F is false
True or False: Fermentation is the same as Anaerobic Respiration?
True or False: The Germ Theory of Disease was developed by Koch and Pasteur.
What is true?
I am a gram negative, rod shaped, motile bacteria commonly found in marine environments. What is my bacteria shape?
Which of the following structures is never a component of the bacterial cell wall?
A. Lipopolysaccharide
B. Peptidoglycan
C. Mycolic acid
D. Cellulose
Chemical "X" has been oxidized by chemical "Z"; this means that
A. Oxygen has been added to "X"
B. "Z" has lost electrons
C. "Z" has become reduced
D. "X" has gained electrons
E. Two of the above are correct
F. Three of the above are correct
What is Z has become reduced
Which of the following statements are true about oxidative phosphorylation?
A. Requires a membrane
B. Involves ET chain
C. Generates most ATP
D. All are correct
What is all are correct?
Which of the following combinations of scientists and discoveries is entirely accurate regarding the development of microbiology, and which are incorrect?
A. Antonie van Leeuwenhoek — first to describe live microorganisms
B. Louis Pasteur — formulated the Germ Theory of Disease
C. Robert Koch — proved spontaneous generation
D. Edward Jenner — pioneered vaccination by using cowpox to prevent smallpox
E. Two above are correct
F. none are correct
What is two above are correct (a & d)
Among choices A-F, which is false?
a. Plasmid: part of the bacterial genome
b. Nucleoid: non-membrane bound area containing prokaryote chromosome
c. fimbriae: for providing attachment to a surface
d. DNA: most abundant molecule in bacterial cell
e. capsule: generally are a virulence factor for those that have it
f. None of A-F is false.
What is DNA: most abundant molecule in bacterial cell?
Certain bacteria have atypical cell wall features; for example, many ___________ possess membrane lipids comprised of terpenoid compounds rather than fatty acids; ______________ have large waxy lipids on the exterior of their peptidoglycan layer; and _________________ species completely lack a cell wall altogether.
A) Archaea; Mycoplasma; Mycobacteria
B) Archaea; Mycobacteria; Mycoplasma
C) Mycobacteria; Archaea; Mycoplasma
D) Archaea; Staphylococcus; E. coli
What is archaea, mycobacteria, mycoplasma
Which statement among A-F is true?
a. Oxidative phosphorylation supplies the ATPs for fermentative bacteria.
b. Oxygen becomes oxidized during aerobic respiration
c. NADH serves as the source of electrons for respiration
d. Pyruvate becomes reduced during acetyl-CoA formation
e. In order to work, glycolysis requires oxygen
f. Fermentation is the same as anaerobic respiration
g. None of A-F are true
What is none if A_F are true?
Reactant A is being converted to product B. ATP formation is linked to this process. Is conversion of A to B catabolic or anabolic?
What is catabolic?
Which two of the following statements about early microbiology are incorrect?
A. Louis Pasteur’s experiments helped disprove spontaneous generation
B. Robert Koch developed the staining technique to identify bacterial species
C. Edward Jenner introduced the first vaccines using chicken virus directly
D. Antony van Leeuwenhoek was the first to observe bacteria under a microscope"
What is Robert Koch developed the staining technique to identify bacterial species?