EXAM
Exam Solution ms
Microbiology Exam #2 ( questions) Karteikarten 2026 ms ms ms ms ms ms ms
A+ GRADE ASSURED COMPLETE SOLUTIONS AND VERI
ms ms ms ms ms ms
FIED ANSWERS (AFC9F) ms ms
QUESTION 1 ms
Elements that are required in relatively large amounts by microorganisms are called...
ms ms ms ms ms ms ms ms ms ms ms m
A.multivitamins
s
B. meganurtients
ms
C. macronutrients
ms
D. macromolecules
ms
ANSWER
C. macronutrients
ms
QUESTION 2 ms
When a microorganism is placed in a(n) ________ solution, water will eneter into the cel
ms ms ms ms ms ms ms ms ms ms ms ms ms ms
l and cause it to burst unless something is done to prevent it.
ms ms ms ms ms ms ms ms ms ms ms ms
A. hypotonic
ms
B. isotonic
ms
C. hypertonic
ms
D. osomotic
ms
ANSWER
A. hypotonic
ms
QUESTION 3 ms
If cells are grown in media containing amino acids labeled with radioactive nitrogen,
ms ms ms ms ms ms ms ms ms ms ms ms ms
most of the radioactivity will be found in the cells...
ms ms ms ms ms ms ms ms ms
A. DNA ms
B. proteins
ms
C. phospholipids
ms
,D. DNA and proteins
ms ms ms
E. DNa and phosophlipids
ms ms ms
ANSWER
D. DNA and proteins
ms ms ms
QUESTION 4 ms
Micooraginams that grow best at temperatures between 45- ms ms ms ms ms ms ms
70 degrees celsius are called:
ms ms ms ms
A. Thermophiles
ms
B. Psycrophiles
ms
C. Thermophobes
ms
D. Mesophiles
ms
ANSWER
A. Thermophiles
ms
QUESTION 5 ms
Which of the following is an advantage of the standard plate count?
ms ms ms ms ms ms ms ms ms ms ms
A. can readily count cells that fomr aggregates
ms ms ms ms ms ms ms
B. determines the number of viable cells
ms ms ms ms ms ms
C. can be performed on very dilute samples, such as lake water
ms ms ms ms ms ms ms ms ms ms ms
D. provides immediate results
ms ms ms
E. can be used to count heat-sensitive bacteria
ms ms ms ms ms ms ms
ANSWER
B. determines the number of viable cells
ms ms ms ms ms ms
QUESTION 6 ms
The total number of viable microorganisms remains constant in stationary phase beca
ms ms ms ms ms ms ms ms ms ms ms
use:
A. there is a balance between cell division and cell death
ms ms ms ms ms ms ms ms ms ms
B. there is a cessation of cell division even though the cells may remain metabolically
ms ms ms ms ms ms ms ms ms ms ms ms ms ms ms
activie
C. either a or b
ms ms ms ms
D. niether a or b
ms ms ms ms
ANSWER
C. either a or b
ms ms ms ms
, QUESTION 7 ms
Which of the following is NOT a direct method to measuree microbial growth?
ms ms ms ms ms ms ms ms ms ms ms ms
A. direct microscopic count
ms ms ms
B. standard plate count
ms ms ms
C. filtration on a support membrane followed by incubation on medium
ms ms ms ms ms ms ms ms ms ms
D. metabolic activity
ms ms
E. most probably number
ms ms ms
ANSWER
D. metabolic activity
ms ms
QUESTION 8 ms
Media counting some ingredients of unknown chemical composition are called ______ m
ms ms ms ms ms ms ms ms ms ms ms
edia
A. undefined
ms
B. complex
ms
C. defined
ms
D. synthetic
ms
ANSWER
B. Complex
ms
QUESTION 9 ms
Which of the following is the best definition of generation time?
ms ms ms ms ms ms ms ms ms ms
A. the length of time needed for lag phase
ms ms ms ms ms ms ms ms
B. the length of time needed for a cell to divide
ms ms ms ms ms ms ms ms ms ms
C. the minimum rate for 10 new cells to form
ms ms ms ms ms ms ms ms ms
D. the duration of exponential growth phase
ms ms ms ms ms ms
E. the timeneeded for nuclear division
ms ms ms ms ms
ANSWER
B. the length of time needed for a cell to divide
ms ms ms ms ms ms ms ms ms ms
QUESTION 10 ms
A gene is best defined as...
ms ms ms ms ms
A. a segment of DNA
ms ms ms ms
B. three nucleotides that code for an amino acid
ms ms ms ms ms ms ms ms
C. a sequence of nucleotides in DNA that codes for a functional product
ms ms ms ms ms ms ms ms ms ms ms ms
D. a sequence of nucleotides in RNA that codes for a functional product
ms ms ms ms ms ms ms ms ms ms ms ms
ANSWER
Exam Solution ms
Microbiology Exam #2 ( questions) Karteikarten 2026 ms ms ms ms ms ms ms
A+ GRADE ASSURED COMPLETE SOLUTIONS AND VERI
ms ms ms ms ms ms
FIED ANSWERS (AFC9F) ms ms
QUESTION 1 ms
Elements that are required in relatively large amounts by microorganisms are called...
ms ms ms ms ms ms ms ms ms ms ms m
A.multivitamins
s
B. meganurtients
ms
C. macronutrients
ms
D. macromolecules
ms
ANSWER
C. macronutrients
ms
QUESTION 2 ms
When a microorganism is placed in a(n) ________ solution, water will eneter into the cel
ms ms ms ms ms ms ms ms ms ms ms ms ms ms
l and cause it to burst unless something is done to prevent it.
ms ms ms ms ms ms ms ms ms ms ms ms
A. hypotonic
ms
B. isotonic
ms
C. hypertonic
ms
D. osomotic
ms
ANSWER
A. hypotonic
ms
QUESTION 3 ms
If cells are grown in media containing amino acids labeled with radioactive nitrogen,
ms ms ms ms ms ms ms ms ms ms ms ms ms
most of the radioactivity will be found in the cells...
ms ms ms ms ms ms ms ms ms
A. DNA ms
B. proteins
ms
C. phospholipids
ms
,D. DNA and proteins
ms ms ms
E. DNa and phosophlipids
ms ms ms
ANSWER
D. DNA and proteins
ms ms ms
QUESTION 4 ms
Micooraginams that grow best at temperatures between 45- ms ms ms ms ms ms ms
70 degrees celsius are called:
ms ms ms ms
A. Thermophiles
ms
B. Psycrophiles
ms
C. Thermophobes
ms
D. Mesophiles
ms
ANSWER
A. Thermophiles
ms
QUESTION 5 ms
Which of the following is an advantage of the standard plate count?
ms ms ms ms ms ms ms ms ms ms ms
A. can readily count cells that fomr aggregates
ms ms ms ms ms ms ms
B. determines the number of viable cells
ms ms ms ms ms ms
C. can be performed on very dilute samples, such as lake water
ms ms ms ms ms ms ms ms ms ms ms
D. provides immediate results
ms ms ms
E. can be used to count heat-sensitive bacteria
ms ms ms ms ms ms ms
ANSWER
B. determines the number of viable cells
ms ms ms ms ms ms
QUESTION 6 ms
The total number of viable microorganisms remains constant in stationary phase beca
ms ms ms ms ms ms ms ms ms ms ms
use:
A. there is a balance between cell division and cell death
ms ms ms ms ms ms ms ms ms ms
B. there is a cessation of cell division even though the cells may remain metabolically
ms ms ms ms ms ms ms ms ms ms ms ms ms ms ms
activie
C. either a or b
ms ms ms ms
D. niether a or b
ms ms ms ms
ANSWER
C. either a or b
ms ms ms ms
, QUESTION 7 ms
Which of the following is NOT a direct method to measuree microbial growth?
ms ms ms ms ms ms ms ms ms ms ms ms
A. direct microscopic count
ms ms ms
B. standard plate count
ms ms ms
C. filtration on a support membrane followed by incubation on medium
ms ms ms ms ms ms ms ms ms ms
D. metabolic activity
ms ms
E. most probably number
ms ms ms
ANSWER
D. metabolic activity
ms ms
QUESTION 8 ms
Media counting some ingredients of unknown chemical composition are called ______ m
ms ms ms ms ms ms ms ms ms ms ms
edia
A. undefined
ms
B. complex
ms
C. defined
ms
D. synthetic
ms
ANSWER
B. Complex
ms
QUESTION 9 ms
Which of the following is the best definition of generation time?
ms ms ms ms ms ms ms ms ms ms
A. the length of time needed for lag phase
ms ms ms ms ms ms ms ms
B. the length of time needed for a cell to divide
ms ms ms ms ms ms ms ms ms ms
C. the minimum rate for 10 new cells to form
ms ms ms ms ms ms ms ms ms
D. the duration of exponential growth phase
ms ms ms ms ms ms
E. the timeneeded for nuclear division
ms ms ms ms ms
ANSWER
B. the length of time needed for a cell to divide
ms ms ms ms ms ms ms ms ms ms
QUESTION 10 ms
A gene is best defined as...
ms ms ms ms ms
A. a segment of DNA
ms ms ms ms
B. three nucleotides that code for an amino acid
ms ms ms ms ms ms ms ms
C. a sequence of nucleotides in DNA that codes for a functional product
ms ms ms ms ms ms ms ms ms ms ms ms
D. a sequence of nucleotides in RNA that codes for a functional product
ms ms ms ms ms ms ms ms ms ms ms ms
ANSWER
