2) every of the complying with statements concerning the gram-positive cell wall is true EXCEPT

A) it maintains the form of the cell.

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B) the is sensitive to lysozyme.

C) it protects the cell in a hypertonic environment.

D) it includes teichoic acids.

E) the is perceptible to penicillin.


3) i m sorry of the adhering to statements ideal describes what happens as soon as a bacterial cabinet is inserted in a equipment containing 5% NaCl?

A) Sucrose will certainly move right into the cabinet from a higher to a lower concentration. B) The cell will certainly undergo osmotic lysis. C) Water will relocate out of the cell. D) Water will move into the cell. E) No change will result; the solution is isotonic.

4) A gram-positive bacterium unexpectedly acquires resistance come the antibiotic methicillin. This trait most likely developed due to acquisition of new genetic details through

A) conjugation. B) binary fission. C) meisosis. D) transformation. E) transduction.

5) through which of the complying with mechanisms deserve to a cell carry a problem from a lower to a greater concentration?

A) an easy diffusion B) promoted diffusion C) active transport D) extracellular enzyme E) aquaporins

6) which of the following is no a common characteristic of many bacterial plasma membranes?

A) website of power production B) composed of a phospholipid double layer C) includes proteins D) includes cholesterol E) is selectively permeable

7) Which one of the adhering to organisms has actually a cabinet wall?

A) protoplasts

B) fungi

C) together forms

D) mycoplasmas

E) animal cells


8) i beg your pardon of the complying with statements is TRUE?

A) Endospores are for reproduction.

B) Endospores allow a cabinet to endure environmental transforms by creating a dormant period with no growth.

C) Endospores are conveniently stained in a Gram stain.

D) A cabinet produces one endospore and keeps growing.

E) A cell can produce plenty of endospores.


9) which of the complying with pairs is mismatched?

A) endoplasmic reticulum — interior transport

B) Golgi complex — secretion

C) mitochondria — ATP production

D) centrosome — food storage

E) lysosome — cradle enzymes


10) i m sorry of the adhering to organelles most very closely resembles a prokaryotes cell?

A) nucleus

B) mitochondrion

C) Golgi complex

D) vacuole

E) cabinet wall


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11) Which illustration in number 4.1 is a tetrad?

A) a

B) b

C) c

D) d

E) e


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12) Which drawing in figure 4.1 possesses an axial filament?

A) a

B) b

C) c

D) d

E) e


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13) Which drawing in figure 4.1 is streptococci?

A) a

B) b

C) c

D) d

E) e


14) Antibiotics the target cell wall synthesis ultimately reason bacterial cell death as a an outcome of

A) osmotic lysis.

B) inhibition of molecule transport.

C) diminished synthesis that plasma membrane.

D) plasmolysis.

E) cell shrinkage.


15) Bacteria room a frequently used organism for studies of genetic material in the study laboratory. The nucleic acids must an initial be isolated from the cells for these studies. I m sorry of the adhering to would most likely be provided to lyse gram-positive bacterial cells because that nucleic mountain isolation?A) lysozymeB) polymixinsC) alcoholD) waterE) mycolic acid


16) i beg your pardon of the adhering to statements around gram-negative cell walls is FALSE?

A) They safeguard the cabinet in a hypotonic environment.

B) They have actually an extra outer layer composed of lipoproteins, lipopolysaccharides, and phospholipids.

C) They space toxic to humans.

D) They space sensitive come penicillin.

E) your Gram reaction is as result of the outer membrane.


17) which of the following structures is NOT discovered in some prokaryotic cells?

A) flagellum B) axial filament C) cilium D) pilus E) peritrichous flagella

18) features of the glycocalyx include every one of the complying with EXCEPT

A) biofilm formation.

B) enhanced virulence.

C) resource of nutrition.

D) protection against dehydration.

E) binary fission.


19) Which structure acts prefer an "invisibility cloak" and also protects bacteria from being phagocytized?

A) slime layer

B) fimbriae

C) capsule

D) cabinet membrane

E) cabinet wall


20) i m sorry of the adhering to is NOT component of the passive transfer process?

A) plasma membrane

B) transporter proteins

C) ATP

D) concentration gradient

E) aquaporins


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Which of the adhering to terms ideal describes the cell in number 4.2?

A) peritrichous flagella

B) amphitrichous flagella

C) lophotrichous flagella

D) monotrichous flagellum

E) axial filament


22) In bacteria, photosynthesis pigments are uncovered in

A) chloroplasts.

B) cytoplasm.

C) chromatophores.

D) mesosomes.

E) ribosomes.


23) The difference between an easy diffusion and also facilitated diffusion is that facilitated diffusion

A) moves products from a greater to a lower concentration.

B) moves products from a lower to a higher concentration.

C) requires ATP.

D) requires transporter proteins.

E) go not need ATP.


24) The terms "run" and "tumble" are generally connected with

A) cell wall surface fluidity.

B) taxic motions of the cell in solution to attractants or repellents.

C) clustering properties of certain rod-shaped bacteria.

D) cell membrane synthesis.


25) You have actually isolated a motile, gram-positive cell with no clearly shows nucleus. You can safely assume the the cell

A) has 9 bag + 2 flagella.

B) has actually a mitochondrion.

C) has a cabinet wall.

D) lives in an extreme environment.

E) has cilia.


26) Fimbriae and pili differ in that

A) there are only one or 2 pili per cell.

B) chili are supplied for motility.

C) chili are provided to move DNA.

D) pili are offered for deliver of DNA and motility.

E) pili are offered for attachment to surfaces.


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27) In figure 4.3, which diagram of a cell wall surface is a gram-negative cell wall?

A) a

B) b

C) both a and also b

D) neither a nor b

E) The answer cannot be determined based upon the info provided.


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28) In figure 4.3, which diagram that a cell wall possesses lipid A/endotoxin responsible because that symptoms connected with infection?

A) a

B) b

C) both a and b

D) neither a nor b

E) The answer cannot be determined based on the information provided.


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29) In figure 4.3, i beg your pardon diagram that a cell wall has a structure that protects against osmotic lysis?

A) a

B) b

C) both a and b

D) neither a no one b

E) The answer cannot be determined based upon the information provided.


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30) In number 4.3, which diagram the a cell wall is decolorized by alcohol?

A) a

B) b

C) both a and also b

D) neither a no one b

E) The answer can not be determined based upon the info provided.


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31) In number 4.3, i m sorry diagram that a cell wall surface is resistant to countless antibiotics (e.g., penicillin)?

A) a

B) b

C) both a and also b

D) no a nor b

E) The answer cannot be determined based upon the info provided.


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32) In figure 4.3, which diagram that a cell wall contains teichoic acids?

A) a

B) b

C) both a and b

D) no a no one b

E) The answer cannot be determined based upon the info provided.


33) In figure 4.3, i beg your pardon diagram of a cell wall contains porins?

A) a

B) b

C) both a and also b

D) neither a nor b

E) The answer can not be determined based upon the information provided.


34) Where are phospholipids many likely uncovered in a prokaryotic cell?

A) flagella

B) about organelles

C) the plasma membrane

D) ribosomes

E) the plasma membrane and around organelles


35) Where are phospholipids most likely found in a eukaryotic cell?

A) surrounding flagella

B) approximately organelles

C) the plasma membrane

D) ribosomes

E) the plasma membrane, about organelles, and surrounding flagella


36) i m sorry of the complying with is NOT discovered or observed to take place in both mitochondria and prokaryotes?

A) one chromosome

B) 70S ribosomes

C) cabinet wall

D) binary fission

E) ATP-generating mechanism


37) which of the adhering to statements is correct around passive diffusion?

A) It needs an expenditure of energy by the cell.

B) that is a procedure in which molecules relocate from a region of higher concentration come a an ar of lower concentration (or under a concentration gradient).

C) it is a process in which molecules move from a an ar of reduced concentration to one of greater concentration (or increase a concentration gradient).

D) It might require a transfer protein.

E) It requires movement that molecules down a concentration gradient and also may call for a transport protein.


Answer: E


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38) Oxygen crosses a plasma membrane

A) by osmosis.

B) through basic diffusion.

C) through the assist of a nonspecific transporter.

D) through promoted diffusion.

E) v porins.


Answer: B


39

39) In a hypertonic solution, a bacter cell will typically

A) lyse.

B) burst.

C) remain the same.

D) plasmolyze.

E) osmolyze.


Answer: D


40

40) What will take place if a bacterial cabinet is pretreated with a lysozyme solution, then inserted in distilled water?

A) The cell will certainly plasmolyze.

B) The cell will undergo osmotic lysis.

C) Water will leave the cell.

D) Lysozyme will certainly diffuse into the cell.

E) No readjust will result; the systems is isotonic.


Answer: B


41

41) just how do spirochetes and spirilla differ?

A) Spirochetes perform not have a cell wall surface but spirilla do.

B) Spirilla are found in chains of cells whereas spirochetes exist together individual cells.

C) Spirilla have actually an external flagella but spirochetes have actually axial filaments.

D) Spirochetes have a rigid, corkscrew form while spirilla are helical and an ext flexible.

See more: Eye Test Puzzle Answers To Viral " How Many Pencils Are There Answer Included)

E) Spirochetes and spirilla room basically the exact same organisms and the terms can be used interchangeably.


Answer: C


42

42) Which one of the adhering to pairs is mismatched?

A) metachromatic granules - phosphate storage

B) lipid inclusions - energy reserve

C) ribosome - carbon storage

D) sulfur granules - energy reserve

E) gas secret - flotation


Answer: C


43

43) i m sorry of the following are NOT energy reserves?

A) carboxysomes

B) polysaccharide granules

C) lipid inclusions

D) ribosomes

E) metachromatic granules


Answer: A


44

44) which of the adhering to is no a functionally analogous pair?

A) cell nucleus -nucleiod an ar B) mitochondria - prokaryotes plasma membrane C) chloroplasts - thylakoids D) cilia - chili E) 9+2 flagella - bacterial flagella

Answer: D