Biology 2420 - Final Exam Questions With Revised Answers
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Course
BIOL 2420
Institution
BIOL 2420
Biology 2420 - Final Exam Questions
With Revised Answers
Living entities, surrounded by a membrane, that are capable of growing, reproducing, responding
and metabolizing are known as:
A) Cells
B) biofilms
C) bioreactors - answerCells
________ contain a nucleus composed of genetic material su...
Biology 2420 - Final Exam Questions
With Revised Answers
Living entities, surrounded by a membrane, that are capable of growing, reproducing, responding
and metabolizing are known as:
A) Cells
B) biofilms
C) bioreactors - answer✔✔Cells
________ contain a nucleus composed of genetic material surrounded by a membrane:
A) pseudokaryotes
B) eukaryotes
C) prokaryotes
D) enzymes - answer✔✔Eukaryotes
________ cells are those that do not have a membrane-bound nucleus:
A) pseudokaryotes
B) eukaryotes
C) prokaryotes
D) fungi - answer✔✔Prokaryotes
Bacteria are:
A) eukaryotic
B) prokaryotic
C) mixokaryotic
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 - answer✔✔E. Buchner
Proteins are polymers of:
A) amino acids
B) nucleotides
C) polysaccharides
D) glucose - answer✔✔Amino Acids
Which is an example of a polysaccharide:
A) Cellulose
B) Glucose
C) Enzymes
D) pili - answer✔✔Cellulose
Short, hair-like- external structures of bacteria are called:
A) cilia
B) flagella
C) fimbriae
D) pseudopodia - answer✔✔Fimbriae
The monomers that make up nucleic acids are:
A) nucleotides
B) amino acids
C) lipids - answer✔✔Nucleotides (uracil, cytosine, thymine, adenine, and guanine)
Reactions that require energy are called ________ reactions:
D) exothermic - answer✔✔Endothermic
Has an axial filament:
A) E. coli
B) B. burgdoferi
C) S. aureus
D) P. aeruginosa - answer✔✔B. burgdoferi
A microbe is moving toward a food source. This is an example of:
A) reproduction
B) metabolism
C) responsiveness
D) growth - answer✔✔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 - answer✔✔Log
The period where the individual bacteria are maturing and not yet able to divide.
A) lag
B) log
C) death
D) stationary - answer✔✔Lag
Metabolic activity stays halts/ends & bacteria die is the ______ phase of growth.
A) lag
D) stationary - answer✔✔Death
Where in a bacterial cell is the most ATP generated?
A) cytoplasma membrane
B) flagella
C) cytosol
D) nucleus
E) mitochondria - answer✔✔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 - answer✔✔Stationary
Human pathogens are classified as:
A) thermophiles
B) mesophiles
C) psychrophiles - answer✔✔Mesophiles
An organism that grows at intermediate temperatures. Grows b/t 10-45 degrees C. Includes many
common types of bacteria and those that live on/in warm blooded.
A) thermophiles
B) mesophiles
C) psychrophiles - answer✔✔Mesophiles
Organisms that are found in conditions hot enough that most organisms cannot tolerate them.
A) thermophiles
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