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Dr. Madison's MCB 2010 Lecture Exam 1 Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution £6.53
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Dr. Madison's MCB 2010 Lecture Exam 1 Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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Dr. Madison's MCB 2010 Lecture Exam 1 Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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  • June 19, 2024
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  • 2023/2024
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Dr. Madison's MCB 2010 Lecture Exam 1
Which of the following statements is incorrect regarding prokaryotic cells - ANS-E they
lack a plasma membrane

Each of the following statements concerning the gram-positive cell wall is true EXCEPT
- ANS-C it protects the cell in a hypertonic environment

Which of the following statements best describes what happens when a bacterial cell is
placed in a solution containing NaCl? - ANS-C water will move out of the cell

A gram-positive bacterium suddenly acquires resistance to the antibiotic methicillin. This
trait most likely occurred due to acquisition of new genetic information through - ANS-A
conjugation

By which of the following mechanisms can a cell transport a substance from a lower to a
higher concentration? - ANS-C active transport

Which of the following isnot a typical characteristic of most bacterial plasma
membranes? - ANS-D contains cholesterol

Which one of the following organisms has a cell wall? - ANS-B fungi

Which of the following statements is true? (endospores) - ANS-B endospores allow a
cell to survive environmental changes by producing a dormant period with no growth.

Which of the following pairs is mismatched? - ANS-D centrosome- food storage

Which of the following organelles most closely resembles a prokaryotic cell? - ANS-B
mitochondrion

Antibiotics that target cell wall sysntheisi ultimately cause bacterial cell death as a result
of - ANS-A osmotic lysis

Bacteria are a commonly used organism for studies of genetic material in the research
laboratory. The nucleic acids must first be isolated from the cells for these studies.
Which of the following would most lykely be used to lyse gram-positive bacterial cells for
nucleic acid - ANS-A lysozyme

, Which of the following statements about gram-negtive cells walls is false? - ANS-D they
are sensitive to penicillin

Which of the following structures is not found in some prokaryotic cells - ANS-C cilium

Functions of the glycocalyx include all of the following except - ANS-E binary fission

which structure acts like an invisibility cloak and protects bacteria from being
phagocytized? - ANS-C capsule

Which of the following is not part of the passive transport process? - ANS-C ATP

Which of the following terms best describes the cell in figure 4.1 - ANS-C lophotrichous
flagella

In bacteria, photosynthetic pigments are found in - ANS-C chromatophores

The difference between simple diffusion and facilitated diffusion is that facilitated
diffusion - ANS-D requires transporter proteins

The terms "run" and "tumble" are generally associated with - ANS-B taxic movements of
the cell in response to attractants or repellents

You have isolated a motile, gram-positive cell with no visible nucleus. You can safely
assume that the cell - ANS-C has a cell wall

Fimbriae and pili differ in that - ANS-D pili are used for transfer of DNA and motility

In figure 4.2, which diagram of a cell wall is a gram-negative cell wall - ANS-B (2 layer
building looking like)

In figure 4.2 which diagram of a cell wall possesses lipid A/endotoxin responsible for
symptoms associated with infection? - ANS-B (2 layer building looking like)

In figure 4.2 which diagram of a cell wall has a structure that protects against osmotic
lysis? - ANS-C both A and B

In figure 4.2 which diagram of a cell wall is decolorized by alcohol? - ANS-B

In figure 4.2 which diagram of a cell wall is resistant to many antibiotics? - ANS-B

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