Exam (elaborations)
MCB3020 (UF) BACUSMO EXAM 1 QUESTIONS AND ANSWERS
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MCB3020 (UF) BACUSMO EXAM 1 QUESTIONS AND ANSWERS
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Name: Score:163 Multiple choice questions
Term 1 of 163
Metabolic Plasmid role
Carry genes for enzymes involved in metabolism
Store genetic information for cell replication
Facilitate communication between cells
Protect the cell from environmental toxins
Term 2 of 163
Transmission Electron Microscopes (TEM)
Create a color image based on the cell's chemical composition.
Visualize the movement of molecules within the cell.
Produce an image of the details of the inside of the cell
Generate a surface view of the cell's outer layer.
Term 3 of 163
Dark-field microscope
uses different densities and refractive indices of cellular components to produce a
detailed image
destroy closely related species
bright image against a dark background
Form a sex pilus and transfer DNA
,Term 4 of 163
Smooth ER
No ribosomes attached to it but has enzymes that synthesize lipids
An organelle that generates energy through cellular respiration
Contains ribosomes that produce proteins for the cell
A structure involved in the breakdown of cellular waste
Term 5 of 163
What are the three layers of the cell envelope?
Composed of only the plasma membrane and cytoskeleton.
Consists of the plasma membrane, cell wall, and layers outside of the cell wall
(Glycocalyx)
Includes the cytoplasm, ribosomes, and nuclear material.
Encompasses the flagella, pili, and fimbriae structures.
Term 6 of 163
Which external structure appears like a grappling hook used for adhesion?
Hami
Fimbriae
Pili
Archaea
,Term 7 of 163
What does LUCA stand for and what branch is it found on?
Endospore stains, Capsule stain, and Flagellar stain.
Membranous organelle that consists of stacked cisternae. It is involved in the
modification, packaging, and secretion of materials
Last Universal Common Ancestor - common ancestor of all three domains of life. States
domains Achaea and Eukarya diverged from common ancestry and Bacteria evolved
independently.
-FtsZ in cell division
-MreB determines cell shape in rod-shape bacteria
-CreS creates curve shape in Caulobacter crescentus bacteria
Term 8 of 163
What is the bacterial shape of vibrio?
comma
spherical
prions
bacillus
Term 9 of 163
What are the prions composed of?
Nucleic Acids
Lysosomes
Proteins
Peptidoglycan
, Term 10 of 163
Cells with relatively complex morphology that have a true membrane-delimited nucleus are
called
viruses
proteins
archaea
eukaryotes
Term 11 of 163
Antony van Leeuwenhoek
First person to observe microorganisms accurately
Who discredited spontaneous generation?
Observed bees and weevils
Carry antibiotic resistance genes
Term 12 of 163
Germ Theory of Disease
Concept that human and animal diseases are caused by microorganisms
Belief that diseases are a result of bad air or miasmas.
Idea that diseases are inherited genetically from parents.
Theory that diseases are caused by imbalances in bodily humors.
Term 13 of 163
Microbiology
The study of human anatomy and physiology.
A field focused on the classification of plants.
The branch of biology that studies microbes.
The examination of geological formations and fossils.
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