Lecture 14 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Describe features of Protista

A

Mostly unicellular
Mostly aquatic
Contains flagella or cilia
Sexual and asexual reproduction
Diverse nutrition lifestyles
Link between prokaryotes and eukaryotes

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

Describe slime mold

A

Eukaryotic single cell organism
Sexual reproduction (spores)
Ranges in size
Multinucleate (1000s of nuclei in one cell)
Great capacity to move around

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

What do viruses exist as outside of the cell

A

Inanimate particles called virions

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

Where can viruses function and reproduce

A

Only within living cells

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

What are the basic properties of viruses

A

Highly complex and organized
Activity is controlled by genetic program
Can reproduce (yes and no)
Can evolve

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

What is the structure of viruses

A

A capsid(protein coat that surrounds nucleic acid)

Enclosed in a protein containing membrane (enveloped) or no (naked or unenveloped)

Nucleic acid either RNA or DNA

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

What types of cells can viruses infect and the host range

A

Viruses bind to the surface of specific proteins

Narrow host range: humane colds and influences viruses. Infects epithelial cells of human respiratory system

Wide host range: rabies can infect cells in dogs, foxes, bats, raccoons and humans

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

How to viruses enter a cell

A

Binds to the cell surface via specific proteins and then enter the cell

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

What are the 2 viral life cycles

A

Non-lytic (lysogenic): vital nucleic acid is replicated in the host and creates viral proteins. Virus DOES NOT destroy host cell

Lytic: production of virus particles ruptured and kills the host cell

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

How do RNA vaccines work?

A

Trick the body into producing an antigen from the RNA template

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