2) every of the following statements worrying the gram-positive cell wall is true EXCEPT

A) it maintains the form of the cell.

You are watching: Which of the following statements is correct about passive diffusion?

B) that is perceptible to lysozyme.

C) it protects the cabinet in a hypertonic environment.

D) it includes teichoic acids.

E) it is perceptible to penicillin.


3) which of the following statements finest describes what happens once a bacterial cell is put in a solution containing 5% NaCl?

A) Sucrose will move into the cabinet from a greater to a reduced concentration. B) The cell will undergo osmotic lysis. C) Water will move out of the cell. D) Water will move right into the cell. E) No adjust will result; the equipment is isotonic.

4) A gram-positive bacterium unexpectedly acquires resistance come the antibiotic methicillin. This trait many likely developed due to salvation of brand-new genetic information through

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

5) through which of the adhering to mechanisms have the right to a cell move a problem from a lower to a greater concentration?

A) basic diffusion B) helped with diffusion C) energetic transport D) extracellular enzyme E) aquaporins

6) which of the following is not a usual characteristic of most bacterial plasma membranes?

A) site of energy production B) created of a phospholipid bilayer C) consists of proteins D) contains cholesterol E) is selectively permeable

7) Which one of the following organisms has actually a cell wall?

A) protoplasts

B) fungi

C) l forms

D) mycoplasmas

E) pet cells


8) which of the following statements is TRUE?

A) Endospores room for reproduction.

B) Endospores permit a cabinet to survive environmental alters by producing a dormant duration with no growth.

C) Endospores are quickly stained in a Gram stain.

D) A cell produces one endospore and keeps growing.

E) A cell deserve to produce plenty of endospores.


9) which of the following pairs is mismatched?

A) endoplasmic reticulum — inner transport

B) Golgi complicated — secretion

C) mitochondria — ATP production

D) centrosome — food storage

E) lysosome — cradle enzymes


10) i m sorry of the complying with organelles most closely resembles a prokaryotes cell?

A) nucleus

B) mitochondrion

C) Golgi complex

D) vacuole

E) cell wall


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11) Which illustration in figure 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 own an axial filament?

A) a

B) b

C) c

D) d

E) e


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13) Which illustration in figure 4.1 is streptococci?

A) a

B) b

C) c

D) d

E) e


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

A) osmotic lysis.

B) inhibition of molecule transport.

C) lessened synthesis of plasma membrane.

D) plasmolysis.

E) cabinet shrinkage.


15) Bacteria room a frequently used biology for researches of genetic material in the research study laboratory. The nucleic acids must very first be isolated indigenous the cells because that these studies. I m sorry of the adhering to would most most likely be supplied to lyse gram-positive bacterial cells for nucleic acid isolation?A) lysozymeB) polymixinsC) alcoholD) waterE) mycolic acid


16) which of the following statements around gram-negative cell wall surfaces is FALSE?

A) They protect the cell in a hypotonic environment.

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

C) They room toxic come humans.

D) They room sensitive to penicillin.

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


17) i m sorry of the following structures is NOT uncovered in some prokaryotic cells?

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

18) attributes of the glycocalyx include all of the following EXCEPT

A) biofilm formation.

B) increased virulence.

C) resource of nutrition.

D) protection against dehydration.

E) binary fission.


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

A) slime layer

B) fimbriae

C) capsule

D) cell membrane

E) cell wall


20) i m sorry of the complying with 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 that the complying with terms best 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 found in

A) chloroplasts.

B) cytoplasm.

C) chromatophores.

D) mesosomes.

E) ribosomes.


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

A) moves materials from a greater to a reduced concentration.

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

C) needs ATP.

D) needs transporter proteins.

E) does not require ATP.


24) The state "run" and "tumble" are generally linked with

A) cell wall fluidity.

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

C) clustering nature of details rod-shaped bacteria.

D) cabinet membrane synthesis.


25) You have isolated a motile, gram-positive cell v no visible nucleus. You deserve to safely assume that the cell

A) has actually 9 pairs + 2 flagella.

B) has a mitochondrion.

C) has a cabinet wall.

D) resides in an extreme environment.

E) has cilia.


26) Fimbriae and also pili different in that

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

B) chili are used for motility.

C) pili are offered to deliver DNA.

D) pili are offered for transport of DNA and also motility.

E) pili are provided for attachment to surfaces.


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

A) a

B) b

C) both a and also b

D) no a no one b

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


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28) In figure 4.3, which diagram the 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 info provided.


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29) In figure 4.3, i m sorry diagram of a cell wall surface has a framework that protects against osmotic lysis?

A) a

B) b

C) both a and b

D) no a no one b

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


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30) In number 4.3, i m sorry diagram of 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 on the info provided.


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31) In number 4.3, which diagram that a cell wall is resistant to numerous 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 details provided.


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32) In figure 4.3, i m sorry 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 details provided.


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

A) a

B) b

C) both a and also b

D) no a no one b

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


34) Where space phospholipids many likely found in a prokaryotic cell?

A) flagella

B) roughly organelles

C) the plasma membrane

D) ribosomes

E) the plasma membrane and around organelles


35) Where space phospholipids many likely uncovered in a eukaryotic bio cell?

A) bordering flagella

B) approximately organelles

C) the plasma membrane

D) ribosomes

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


36) which of the adhering to is NOT found or it was observed to happen in both mitochondria and also prokaryotes?

A) circular chromosome

B) 70S ribosomes

C) cell wall

D) binary fission

E) ATP-generating mechanism


37) i m sorry of the adhering to statements is correct around passive diffusion?

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

B) the is a process in i beg your pardon molecules move from a region of higher concentration to a an ar of reduced concentration (or down a concentration gradient).

C) it is a procedure in i m sorry molecules move from a region of reduced concentration to one of greater concentration (or up a concentration gradient).

D) It might require a transport protein.

E) It requires movement the molecules down a concentration gradient and may require a transport protein.


Answer: E


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38) Oxygen the cross a plasma membrane

A) by osmosis.

B) through basic diffusion.

C) through the help of a nonspecific transporter.

D) through promoted diffusion.

E) with porins.


Answer: B


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

A) lyse.

B) burst.

C) continue to be the same.

D) plasmolyze.

E) osmolyze.


Answer: D


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40) What will take place if a bacterial cell 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 certainly leave the cell.

D) Lysozyme will diffuse into the cell.

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


Answer: B


41

41) exactly how do spirochetes and spirilla differ?

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

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

C) Spirilla have actually an outside flagella yet spirochetes have actually axial filaments.

D) Spirochetes have actually a rigid, corkscrew form while spirilla space helical and much more flexible.

See more: Write An Expression Whose Value Is The Last (Rightmost) Digit Of X.

E) Spirochetes and also spirilla space basically the exact same organisms and the terms can be provided interchangeably.


Answer: C


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42) Which among the adhering to pairs is mismatched?

A) metachromatic granules - phosphate storage

B) lipid inclusions - power reserve

C) ribosomes - carbon storage

D) sulfur granules - energy reserve

E) gas secret - flotation


Answer: C


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

A) carboxysomes

B) polysaccharide granules

C) lipid inclusions

D) ribosomes

E) metachromatic granules


Answer: A


44

44) i beg your pardon of the following is no a functionally analogous pair?

A) nucleus -nucleiod region B) mitochondria - prokaryotes plasma membrane C) chloroplast - thylakoids D) cilia - pili E) 9+2 flagella - bacter flagella

Answer: D