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

A) that maintains the shape of the cell.

You are watching: Which of the following statements about gram-negative cell walls is false?

B) it is perceptible to lysozyme.

C) the protects the cell in a hypertonic environment.

D) it contains teichoic acids.

E) the is sensitive to penicillin.


3) which of the adhering to statements finest describes what happens as soon as a bacterial cabinet is put in a systems containing 5% NaCl?

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

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

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

5) whereby of the following mechanisms can a cell carry a problem from a lower to a higher concentration?

A) simple diffusion B) promoted diffusion C) energetic transport D) extracellular enzymes E) aquaporins

6) i beg your pardon of the adhering to is not a usual characteristic of most bacterial plasma membranes?

A) site of power production B) created of a phospholipid double layer C) contains proteins D) consists of cholesterol E) is selectively permeable

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

A) protoplasts

B) fungi

C) together forms

D) mycoplasmas

E) pet cells


8) i m sorry of the following statements is TRUE?

A) Endospores space for reproduction.

B) Endospores permit a cabinet to make it through environmental alters by producing a dormant period with no growth.

C) Endospores are easily stained in a Gram stain.

D) A cabinet produces one endospore and also keeps growing.

E) A cell have the right to produce many endospores.


9) i beg your pardon of the following pairs is mismatched?

A) endoplasmic reticulum — internal transport

B) Golgi complex — secretion

C) mitochondria — ATP production

D) centrosome — food storage

E) lysosome — cradle enzymes


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

A) nucleus

B) mitochondrion

C) Golgi complex

D) vacuole

E) cell wall


*

11) Which illustration in number 4.1 is a tetrad?

A) a

B) b

C) c

D) d

E) e


*

12) Which drawing in number 4.1 own an axial filament?

A) a

B) b

C) c

D) d

E) e


*

13) Which drawing in number 4.1 is streptococci?

A) a

B) b

C) c

D) d

E) e


14) Antibiotics that target cell wall synthesis ultimately cause bacterial cell death as a result of

A) osmotic lysis.

B) inhibition of molecule transport.

C) reduced synthesis that plasma membrane.

D) plasmolysis.

E) cell shrinkage.


15) Bacteria room a generally used biology for research studies of genetic material in the research laboratory. The nucleic acids must an initial be isolated native the cells because that these studies. Which of the adhering to would most likely be offered to lyse gram-positive bacter cells for nucleic acid isolation?A) lysozymeB) polymixinsC) alcoholD) waterE) mycolic acid


16) i m sorry of the adhering to statements about gram-negative cell walls is FALSE?

A) They safeguard the cell in a hypotonic environment.

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

C) They space toxic come humans.

D) They are sensitive come penicillin.

E) their Gram reaction is due to the external membrane.


17) i beg your pardon of the following structures is NOT discovered in some prokaryotic cells?

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

18) attributes of the glycocalyx include every one of the following EXCEPT

A) biofilm formation.

B) enhanced virulence.

C) resource of nutrition.

D) protection against dehydration.

E) binary fission.


19) Which framework acts like an "invisibility cloak" and protects bacteria from gift phagocytized?

A) slime layer

B) fimbriae

C) capsule

D) cell membrane

E) cell wall


20) which of the adhering to is NOT component of the passive move process?

A) plasma membrane

B) transporter proteins

C) ATP

D) concentration gradient

E) aquaporins


*

Which that the adhering to terms best describes the cabinet 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 distinction between straightforward diffusion and facilitated diffusion is that facilitated diffusion

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

B) moves materials from a lower to a greater concentration.

C) requires ATP.

D) requires transporter proteins.

E) does not need ATP.


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

A) cell wall fluidity.

B) taxic movements of the cabinet in solution to attractants or repellents.

C) clustering nature of particular rod-shaped bacteria.

D) cabinet membrane synthesis.


25) You have isolated a motile, gram-positive cell through no clearly shows nucleus. You have the right to safely assume the the cell

A) has actually 9 bag + 2 flagella.

B) has actually a mitochondrion.

C) has a cabinet wall.

D) resides in severe environment.

E) has actually cilia.


26) Fimbriae and pili differ in that

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

B) chili are offered for motility.

C) chili are provided to carry DNA.

D) pili are used for transfer of DNA and also motility.

E) chili are provided for attachments to surfaces.


*

27) In number 4.3, i beg your pardon diagram that a cell wall surface is a gram-negative cabinet wall?

A) a

B) b

C) both a and b

D) neither a no one b

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


*

28) In figure 4.3, i beg your pardon diagram the a cell wall possesses lipid A/endotoxin responsible because that symptoms associated with infection?

A) a

B) b

C) both a and b

D) no a nor b

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


*

29) In figure 4.3, i m sorry diagram that a cell wall has a structure that protects versus osmotic lysis?

A) a

B) b

C) both a and also b

D) neither a no one b

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


*

30) In number 4.3, i beg your pardon diagram that a cell wall is decolorized by alcohol?

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.


*

31) In figure 4.3, i m sorry diagram the a cell wall is resistant to plenty of antibiotics (e.g., penicillin)?

A) a

B) b

C) both a and also b

D) no a nor b

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


*

32) In figure 4.3, i beg your pardon diagram the a cell wall contains teichoic acids?

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.


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

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.


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

A) flagella

B) around organelles

C) the plasma membrane

D) ribosomes

E) the plasma membrane and around organelles


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

A) bordering flagella

B) about organelles

C) the plasma membrane

D) ribosomes

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


36) i beg your pardon of the complying with is NOT uncovered or it was observed to take place in both mitochondria and also prokaryotes?

A) circular chromosome

B) 70S ribosomes

C) cell wall

D) binary fission

E) ATP-generating mechanism


37) which of the complying with statements is correct about passive diffusion?

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

B) it is a process in i m sorry molecules relocate from a region of greater concentration come a an ar of lower concentration (or under a concentration gradient).

C) that is a procedure in which molecules move from a an ar of reduced concentration come one of greater concentration (or up a concentration gradient).

D) It may require a carry protein.

E) It involves movement of molecules under a concentration gradient and may call for a move protein.


Answer: E


38

38) Oxygen the cross a plasma membrane

A) through osmosis.

B) through simple diffusion.

C) through the help of a nonspecific transporter.

D) through promoted diffusion.

E) v porins.


Answer: B


39

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

A) lyse.

B) burst.

C) continue to be the same.

D) plasmolyze.

E) osmolyze.


Answer: D


40

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

A) The cell will plasmolyze.

B) The cell will undergo osmotic lysis.

C) Water will certainly leave the cell.

D) Lysozyme will diffuse into the cell.

E) No change will result; the solution is isotonic.


Answer: B


41

41) how do spirochetes and spirilla differ?

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

B) Spirilla are uncovered in chain of cell whereas spirochetes exist as individual cells.

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

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

See more: Denim Low Rise Mini Skirt, Low Rise And Belted, Made In The Usa

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


Answer: C


42

42) Which among the following pairs is mismatched?

A) metachromatic granules - phosphate storage

B) lipid inclusions - energy reserve

C) ribosomes - carbon storage

D) sulfur granules - power reserve

E) gas vacuoles - flotation


Answer: C


43

43) i beg your pardon of the following are NOT energy reserves?

A) carboxysomes

B) polysaccharide granules

C) lipid inclusions

D) ribosomes

E) metachromatic granules


Answer: A


44

44) i m sorry of the complying with is not a functionally analogous pair?

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

Answer: D