Biology 2420 - Final Exam (Questions & Answers) Rated 100%
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Course
Biology 2420
Institution
Biology 2420
A form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the
same size - Binary Fission
Enzymes, toxins, and other factors that affect the relative ability of a pathogen to infect and cause
disease. - Virulence factors
Gram staining differentiates ba...
Biology 2420 - Final Exam
A form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the
same size - Binary Fission
Enzymes, toxins, and other factors that affect the relative ability of a pathogen to infect and cause
disease. - Virulence factors
Gram staining differentiates bacteria based on their:
A) ATP
B) endospore
C) cell wall
D) integral proteins - Cell Wall
Reactions that require energy are called ________ reactions:
A) endergonic
B) endothermic
C) exergonic
D) exothermic - Endothermic
________ contain a nucleus composed of genetic material surrounded by a membrane:
A) pseudokaryotes
B) eukaryotes
C) prokaryotes
D) enzymes - Eukaryotes
________ cells are those that do not have a membrane-bound nucleus:
A) pseudokaryotes
,B) eukaryotes
C) prokaryotes
D) fungi - Prokaryotes
Bacteria are:
A) eukaryotic
B) prokaryotic
C) mixokaryotic
D) monokaryotic - Prokaryotic
Who demonstrated that cell-produced proteins called enzymes were responsible for chemical reactions
in a cell?
A) A. Leeuwenhoek
B) R. Koch
C) L. Pasteur
D) J. Lister
E) E. Buchner - E. Buchner
Proteins are polymers of:
A) amino acids
B) nucleotides
C) polysaccharides
D) glucose - Amino Acids
Which is an example of a polysaccharide:
A) Cellulose
B) Glucose
C) Enzymes
D) pili - Cellulose
,Short, hair-like- external structures of bacteria are called:
A) cilia
B) flagella
C) fimbriae
D) pseudopodia - Fimbriae
The monomers that make up nucleic acids are:
A) nucleotides
B) amino acids
C) lipids - Nucleotides (uracil, cytosine, thymine, adenine, and guanine)
Has an axial filament:
A) E. coli
B) B. burgdoferi
C) S. aureus
D) P. aeruginosa - B. burgdoferi
A microbe is moving toward a food source. This is an example of:
A) reproduction
B) metabolism
C) responsiveness
D) growth - Responsiveness
It is a period characterized by cell doubling. Metabolic activity is at maximum level in the _________
phase of growth.
A) lag
B) log
, C) death
D) stationary - Log
The period where the individual bacteria are maturing and not yet able to divide.
A) lag
B) log
C) death
D) stationary - Lag
Metabolic activity stays halts/ends & bacteria die is the ______ phase of growth.
A) lag
B) log
C) death
D) stationary - Death
Where in a bacterial cell is the most ATP generated?
A) cytoplasma membrane
B) flagella
C) cytosol
D) nucleus
E) mitochondria - Cytoplasma Membrane
Metabolic activity stays steady is the ______ phase of growth. Is often due to a growth-limiting factor
such as the depletion of an essential nutrient, and/or the formation of an inhibitory product such as an
organic acid. Results from a situation in which growth rate and death rate are equal
A) lag
B) log
C) death
D) stationary - Stationary
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