Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Med Micro exam 1 > Ch. 4 > Flashcards

Ch. 4 Flashcards

(74 cards)

Start Studying
1
Q

Type of cell with no nuclear membrane

A

Procaryotic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In a Procaryotic cell where is genetic material?

A

NOT enclosed within a membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Prokaryotic cells have no organelles. T or F?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Nucleus bound by a membrane. What cell type?

A

Eucaryotic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Eukaryotic cells contain no peptidoglycan. T or F?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Coccus shape

A

circle/sphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Bacillus shape

A

rod

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Prokaryotic cells divide by__________

A

binary fission (asexual)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

_________ cells walls contain peptidoglycan.

A

Procaryotic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Spiral shape

A

spiral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Curved rods with more than 1 curve

A

Spirillum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Star or Square shaped bacteria?

A

Archeobacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

External cell wall structure- Capsule. Made from?

A

Polysaccharide - Polypeptide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Capsule is

A

sticky gelatinious polymer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Capsule function?

A
  1. *Contributes to virulence.
  2. *Antiphagocytosis
  3. Source of food (can breakdown own capsule for food)
  4. colonization - attachments to teeth, GI tract, Resp. tract
  5. dehydration protection
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Organ of locomotion?

A

Flagella (have if they live in water)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Flagella made from?

A

Flagellin - protein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Axial filaments are used by ____________.

A

Spirochoetes (bacteria)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Bundles of fibrils that arise at one end of the cell beneath outersheathf and spiral around the cell.

Allows cell to move in corkscrew motion

A

Axial filaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

3 bacterias that have axial filaments.

A
  1. Treponema pallidum (syphilis)
  2. Borelia bergidorferi (lyme disease)
  3. Leptospira interogans (kidney infection)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Hair-like structure

A

Fimbriae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Fimbriae and Pili found in Gram ______ bacteria?

A

negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Structure used for attachment - adherence.

A

Fimbriae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Structure used for transfer of DNA. Has tube like structures to transfer.

A

Pili

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Causative agent of gonorrhea. Has fimbriae.
Neisseria gonorrhea
26
Bacteria that look like curved rods
vibrios (vibrio)
27
vibriocholera
Most powerful diarrhea
28
Helicobacteria pylori is an example of which type of spiral bacteria?
Spirillum
29
Causative agent of Anthrax
Bacillus anthracis
30
Peptidoglycan made from _____ and _______.
teichoic acid and lipteichoic acid
31
One sex pili function
To transfer drug/antibiotic resistance
32
Process of attaching to another bacteria to pass plasmid to another bacteria
conjugation (sex pili)
33
What gives the cell its shape?
The Cell Wall
34
Cell structure that is the action site for antibiotics?
cell wall
35
Cell wall prevents rupture by____________
Osmotic pressure
36
_______ Acid differentiates type of bacteria within the same genus.
teichoic acid
37
gram_____ bacteria has no teichoic acid
negative
38
gram - has an outer cell wall membrane? T or F
True
39
Lipopolysaccharide
antigenicity
40
Lipid A causes______
endotoxins. Plays a role in disease.
41
Gram ____ has no outer cell wall membrane
Positive
42
Fagella structure in Gram + bacteria
2 rings in basal body
43
Fagella structure in Gram - bacteria
4 rings in basal body
44
Atypical cell wall bacteria with NO cell wall
Myocoplasma
45
Myocoplasma contain _____ to protect from lysis.
Sterols
46
Archaea Bacteria _____ peptiodoglycan
Lack
47
Defective cell wall
L-form of bacteria - Corynebacteria
48
Gram + cell subject to osmotic lysis
Protoplast
49
Gram - cell subject to osmotic lysis
Spheroplast
50
________ Made from phospholipid bilayer.
Plasma Membrane
51
Most important function of plasma membrane
selectively permeable
52
Solutes move from area of high concentration to low concentration until equal. No energy.
Simple diffusion (eg. o2 and co2)
53
Diffusion using a carrier protein. No energy.
Facilitated diffusion (eg. glucose)
54
Movement of solvent molecules (water) across a selectively permeable membrane
Osmosis
55
Solution in which water moves into cell
hypotonic
56
Solution in which water moves out of the cell
hypertonic (cytoplasm becomes thick)
57
Transport that requires energy (ATP) against concentration gradient
Active Transport
58
Only in prokaryotes, substance chemically altered during transport. Once altered the substance remains in the cell. Enables the cell to accumulate various substances even though may be in low concentration outside the cell.
Group Translocation
59
Common example of group translocation
Glucose ------> Glucose_6_Phosphate
60
Cytoplasm made from_____
80% water
61
Nuclear area contains_____ and ____
DNA (highly coiled) 20% of volume of cell and NO nuclear membrane
62
_____ Production occurs in cytoplasmic membrane in bacteria
ATP
63
Independent DNA; multiply independently
Plasmids
64
_____ carry genes that give a cell an advantage by providing genes for drug resistance, virulence, toxins, enzymes
Plasmids
65
Plasmid used as vectors in which tech?
Recombinant DNA Technology
66
Ribosomes function?
Protein synthesis
67
50s + 30s ---> 70s
Procaryotes
68
60s + 40s ---> 80s
Eucaryotes
69
Sac-like, nutrient pockets for storage
Inclusions
70
Help cells adapt to harsh environments to help survive (survival structure)
Endospores
71
Gram + bacteria that contain endospores (2 of them)
clostridium and bacillus
72
Group Translocation _______ in eucaryotes.
Absent
73
Eukaryotic cells contain ________, which are phagocytic cells (contain digestive enzymes)
Lysosomes
74
Cell type without peptidogylcan
Eucaryotic cell

Med Micro exam 1 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions