MBIO 3401 Exam 2 Questions &
Answers (Grade A+)
The first experimental evidence that genes are composed of DNA
rather than protein was published by: -
correct answer ✅Oswald Avery, Colin MacLeod, and Maclyn
McCarty
In terms of chemical structure, what distinguishes DNA from RNA? -
correct answer ✅two or more of the above answers are correct
A nucleotide molecule (such as ATP) is composed of what chemical
groups? -
correct answer ✅a pentose sugar, a phosphate group, and a
purine or pyrimidine base
The correct logarithm form of the exponential growth equation is: -
correct answer ✅log N = log N0 + 0.301(t-t0)/g
Which of the following statements best expresses the meaning of
exponential growth of bacteria? -
correct answer ✅the number of cells in the population doubles
during a constant time interval
, MBIO 3401 Exam 2 Questions &
Answers (Grade A+)
The time required for cells in a microbial population to grow, divide,
and produce twice the number of cells that existed before is called
the: -
correct answer ✅generation time
After stationary-phase bacteria are inoculated into fresh culture
medium, what happens before cell elongation is observed to occur?
-
correct answer ✅two or more of the above answers are correct
the most common type of cell division in yeast cells is: -
correct answer ✅budding
what is the change in concentration of protons (H+) when going
from pH 7.0 to pH 4.0? -
correct answer ✅from 1x10-7 M to 1x10-4 M
lack of the enzymes superoxide dismutase and catalase in certain
bacteria may explain differences in: -
correct answer ✅ability to grow in the presence of oxygen
Answers (Grade A+)
The first experimental evidence that genes are composed of DNA
rather than protein was published by: -
correct answer ✅Oswald Avery, Colin MacLeod, and Maclyn
McCarty
In terms of chemical structure, what distinguishes DNA from RNA? -
correct answer ✅two or more of the above answers are correct
A nucleotide molecule (such as ATP) is composed of what chemical
groups? -
correct answer ✅a pentose sugar, a phosphate group, and a
purine or pyrimidine base
The correct logarithm form of the exponential growth equation is: -
correct answer ✅log N = log N0 + 0.301(t-t0)/g
Which of the following statements best expresses the meaning of
exponential growth of bacteria? -
correct answer ✅the number of cells in the population doubles
during a constant time interval
, MBIO 3401 Exam 2 Questions &
Answers (Grade A+)
The time required for cells in a microbial population to grow, divide,
and produce twice the number of cells that existed before is called
the: -
correct answer ✅generation time
After stationary-phase bacteria are inoculated into fresh culture
medium, what happens before cell elongation is observed to occur?
-
correct answer ✅two or more of the above answers are correct
the most common type of cell division in yeast cells is: -
correct answer ✅budding
what is the change in concentration of protons (H+) when going
from pH 7.0 to pH 4.0? -
correct answer ✅from 1x10-7 M to 1x10-4 M
lack of the enzymes superoxide dismutase and catalase in certain
bacteria may explain differences in: -
correct answer ✅ability to grow in the presence of oxygen
