Chapter 4 Prokaryotic and Eukaryotic Cells
How many chromosomes are found in a typical bacterial cell? a) 2 b) 1 c) 4 d) 23
1
Which of the following is not a common bacterial shape? a)Spirochete b)Coccus c)Disc d)Bacillus
Disc
Which of the following groups of organisms is not Prokaryotic? a)Archea b)Bacteria c)Eubacteria d)Eukarya
Eukarya
Peptidoglycan makes up more than 50% of a _______ cell wall. a) Gram negative b) Gram positive c) Gram variable d) acid-fast
Gram positive
While division in one plane produces cells in pairs, what does random division produce? a) Sarcinae b) Eight cells arranged in a cube c) Grapelike clusters (staphylo-) d) Four cells arranged in a cube
Grapelike clusters (staphylo-)
Which bacterial genus normally lacks a cell wall? a) Mycobacterium b) Streptococcus c) Mycoplasma d) Bacillus
Mycoplasma
Which of the following is not found in bacterial cells? a) A cell membrane, usually surrounded by a cell wall b) An internal cytoplasm with ribosomes, a nuclear region and in some cases granules c) A variety of external structures, such as capsules, flagella and pili d) Respiratory enzymes contained in an internal structure surrounded by membranes
Respiratory enzymes contained in an internal structure surrounded by membranes
Mycolic acid would be found primarily in the cell wall of: a) Gram positive bacteria b) Gram negative bacteria c) Gram variable bacteria d) acid-fast bacteria
acid-fast bacteria
The periplasmic space is found _______. a) only in Gram positive organisms b) between the nuclear area and the cell membrane c) primarily in acid fast bacteria d) between the inner cell membrane and outer cell wall membrane
between the inner cell membrane and outer cell wall membrane
Prokaryotic cells divide by _______. a) mitosis b) binary fission c) meiosis d) mitosis asexually and meiosis sexually
binary fission
The fluid-mosaic model describes the structure of _______. a) cell walls b) cell membranes c) capsules d) endosymbiotic relationshsips
cell membranes
The shape of a bacterial cell is determined (and maintained) by the _________. a) cell membrane b) cell wall c) capsule d) slime layer
cell wall
Bacterial cells grown in culture form cell masses known as: a) plaques b) warts c) colonies d) growths
colonies
Some bacteria can transfer DNA to another cell using: a) conjugation pili b) fimbriae c) axial filaments d) lophotrichous flagella
conjugation pili
The outer (cell) membrane component of the cell walls is ________. a) is found only in Gram positive bacteria b) is made primarily of peptidoglycan c) contains lipopolysaccharrides d) is primarily a reproductive structure
contains lipopolysaccharrides
Bacteria move by means of: a) cilia b) flagella c) fimbriae d) pili
flagella
The charged, phospate end of a membrane phospholipid is: a) water-fearing b) hydrophilic c) hydropholic d) none of the above
hydrophilic
The _____ portion of the cell membrane functions as a barrier while the ____ portion provides specific functions, including pumps, receptors, adhesion, etc. a) carbohydrate; nucleic acid b) lipid; protein c) lipid; carbohydrate d) nucleic acid; lipid
lipid; protein
The most important structural component of bacterial cell walls is _______. a) teichoic acid b) lipotechoic acid c) peptidoglycan d) glutamic acid
peptidoglycan
Bacteria with flagella all over their surface are said to be: a) monotrichous b) peritrichous c) amphitrichous d) lophotricous
peritrichous
Which of the following cellular structures are found only in prokaryotic cells? a) endoplasmic reticulum b) pili c) nucleoulus d) lysosomes
pili
Extrachromosomal DNA in prokaryotic cells can be found in the form of __________. a) chromsomes b) plasmids c) mitochondria d) choroplasts
plasmids
Which of the following cellular structures can be found in both prokaryotic and eukaryotic cells? a) Golgi apparatus b) lysosomes c) peroxisomes d) ribosomes
ribosomes
In bacteria, the cell membrane functions in all of the following ways EXCEPT: a) regulates movement of materials into and out of the cell b) synthesizes cell wall components c) serves as the site for protein synthesis d) assists with DNA replication
serves as the site for protein synthesis
A small comma shaped bacteria is described as being a ____________. a)spirochete b)bacillus c)spirillium d)vibrio
vibrio