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Biology 2420 - Final Exam (Questions & Answers) Rated 100%
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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...

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  • August 31, 2024
  • 46
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • Biology 2420
  • Biology 2420

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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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