Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Micro Test 1 Albertson > Characteristic Of Microorganisms > Flashcards

Characteristic Of Microorganisms Flashcards

(60 cards)

Start Studying
1
Q

In a Eurcaryotic Cell the nuclear membrane is?

A

Present

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

In eurcaryotic cells chromosomes are?

A

Multiple, liner

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

In eurcaryotic cells cell replication is?

A

Mitosis

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

In eurcaryotic cells there are how many specialized organelles?

A

Several

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

In prokaryotic cells there are how many specialized organelles?

A

Few

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

In prokaryotic cells energy production happens where?

A

On the membrane

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

In prokaryotic cells cell replication happens by?

A

Binary Fission

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

In prokaryotic cells chromosomes are?

A

Singular, circle

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

In prokaryotic cells the nuclear membrane is?

A

Absent

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

Process a major antigen that may be common to more than one species of the genus’ Capital letters

A

Antigenic Group

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

Specific antigen that is very limited to closely related organisms.

A

Antigenic type

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

Major shapes and arrangements of bacteria cell.

A

Cocci- Spherical
Bacillus- Cylinder or rod
Spirillum or Spirochete- Spiral, cork

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

Components of bacteria cytoplasm and function

A

Thick aqueous solution

Cell sap- (nutrients, waste removal) Metabolism

Mechanism and genetic material (RNA, DNA, Ribosomes) Replication

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

Components of bacterial cytoplasmic membrane

A

Proteins, Phospholipid bilayer

  • Selective permeability
  • Energy production
  • Synthesis and transport
  • Secretion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the major functions of bacteria cell wall?

A
  • Shape and rigidity
  • Production from outside
  • Place where antigenic can attach
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Metabolically dormant, heat resistant structure within the cytoplasm of certain gram-positive bacteria and function?

A

Endospore; survival under adverse environmental conditions

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

What is the mucous (slimy) material surrounding certain bacterial cells and function?

A

Capsule;

  • Resistant to phagocytosis (slime)
  • Hide surface antigens (ocean)
  • Can aid in attachment (gum)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Thread-like structures on exterior of bacteria cells and their composition?

A

Flagellum: long spender, several times the appendage of the cell

Fimbriae: short, thin, glycoprotein strands protruding from cell

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

Function of flagellum

A

Motility

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

Bundles of fibrils arising at ends of cell beneath outer sheath and spiral around the cell (cause corkscrew motion)

A

Axial filaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Function of fimbriae

A

Aid in bacteria attachment to appropriate cells (sex pili)

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

A gram- positive wall has a peptidoglycan % of?

A

60-80%

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

A gram-negative wall has a peptidoglycan % of?

A

10-20%

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

Components of gram-positive cell wall

A

N-acetylglucosamine
N-acetulmuramic
Peptidoglycan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Components of gram-negative cell wall
????
26
What is the space between peptidoglycan and the "outer membrane"
Periplasmic space
27
Clump of a few million identical bacteria originating from the same bacterium is?
Colony
28
Most medically significant bacteria will reproduce about _________ under optimal conditions.
30-60 minutes
29
Requires atmospheric oxygen
Aerobic
30
Requires reduced oxygen concentration
Microaerophilic
31
Requires absence of oxygen
Anaerobic
32
Can grow in presence or absence of oxygen
Facultative
33
Typical medically significant bacteria optimal temp, pH, CO2, and humidity for growth.
T: 35c PH: 6.8-7.4 H: 60-80% CO2: Most do not need but some need 5%
34
Module cells that are multicellular long filaments are called _________. When these cells/ structures grow in a mass, they are referred to as ___________.
Hyphae Mycelium
35
Reproductive forms of moulds typically grow on ___________.
Vegetative Hyphae
36
Moulds typically grow on _______ and they contain antibiotics to inhibit what?
Artificial media Bacteria growth
37
Not to be considered to be a living organism
Virus
38
What is the inner-most structure of the virus and what's is it composed of and function?
Core; Nucleic acid (DNA or RNA) | Function: general info
39
What is the structure found on the exterior of only certain viruses?
Envelope
40
What is the envelope composed of?
Lipid bilayer acquired from host cell or nude clear membrane Glycoproteins (spikes)- site for attachment and serve as antigen
41
What is the function of the envelope
- Lipid bilayer provides protection from environment - Proteins are primary site of attachment to host cell surface - Proteins serve as antigens during infection and site for antibody attachment
42
Bacterial viruses are structurally similar to animal viruses, but with an additional structure known as the ________. One significant role of this additional structure is
Tail Penetrating cell wall and injecting nucleic acid
43
Steps of the virus infection
1- Attachment 2- Penetration and uncoating of nucleic acid 3- Eclipse or synthesis phase (genetic code translated into proteins, virus takes control of host) 4- Maturation (assemble and package) 5- Release (budding and lysis)
44
What major mechanism involving the entrance of a virus into a human cell?
Method similar to ingestion into phagocytosis or fusion of envelope with host cell's cytoplasmic membrane
45
What are the major mechanisms of viral genetic code translation into protein in a virus- infected cell?
....
46
How do enveloped viruses exit the infected cell?
Budding
47
How do non-enveloped viruses exit the infected cell?
Lysis
48
Latency of a viral infection
DNA of certain viruses can incorporate into the host DNA and lie dormant for long period if time
49
What growth conditions are required for virus replication?
A living cell
50
Locomotion: Amoebae
move by pseudopodia (false feet)
51
Major morphologic stages of Protozoa
Trophozoite Stage -active, vegetative, feeding stage Cystic Stage -dormant, nonmotile, non feeding stage
52
One body part, non-segmented, leaf shaped
Trematodes
53
Multi body parts, segmented
Cestodes
54
Cells which are about 1.2 um in diameter, grow on routine culture media, and reproduce by binary fission is known as?
Prokaryotic
55
A microbe which consisted of segmented body parts and is about 50 mm in length
Cestodes (tapeworms)
56
A microbe which reproduces only when it is inside a living host cell
Virus
57
How can "typical" bacteria be differentiated from "atypical"
Ability to grow or not grow on routine culture media
58
Locomotion: Flagellates
move by flagella (whip-like)
59
Locomotion: Cilliates
move by cilia (short hair-like)
60
Locomotion: Apicomplexans
non-motile

Micro Test 1 Albertson (2 decks)

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