BIOLOGY 2150 EXAM 2 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Question:
1. Bacterial Cells have what shape of DNA
Answer:
Circular
Question:
2. Do bacterial cells have a nucleus?
Answer:
no
Question:
3. What does a bacterial cell have?
Answer:
A plasma membrane and a cell wall.
Question:
4. Plasmids
Answer:
Small circles of additional DNA present in bacteria.
Question:
5. Are prokaryotes smaller than eukaryotes?
Answer:
Yes, they also come in different shapes but mostly in spheres and rods.
Question:
6. Myxobacterium
Answer:
A bacterium in which cells aggregate to form fruiting bodies.
Transport through different areas in the air.
Asexual reproduction. (mitosis)
Question:
7. Horizontal gene transfer
Answer:
a process by which
bacteria obtain new genes from other bacteria.
, Question:
8. There are three methods to horizontal gene transferring..
they are
Answer:
Conjugation
Transformation
Transduction
Question:
9. Transfer by conjugation is when...
Answer:
DNA(usually a plasmid) from a donor cell is transferred through a pilus into the
recipient cell.
This process usually involves a plasmid.
Plasmids confer antibiotic resistance.
Question:
10. Transfer by transformation is when...
Answer:
DNA released into the environment by dead cells is taken up by a recipient cell.
DNA taken out by bacteria
Question:
11. Transfer by transduction is when...
Answer:
DNA is transferred from a donor to a recipient cell by a virus.
Question:
12. Archie can live in what type of environments?
Answer:
Extreme
They also can produce methane
No peptigolycan in cell wall.
Question:
13. What makes it unique compared to Bacteria and Eukarya?
Answer:
Membranes have a unique lipid composition
QUESTIONS AND CORRECT ANSWERS
Question:
1. Bacterial Cells have what shape of DNA
Answer:
Circular
Question:
2. Do bacterial cells have a nucleus?
Answer:
no
Question:
3. What does a bacterial cell have?
Answer:
A plasma membrane and a cell wall.
Question:
4. Plasmids
Answer:
Small circles of additional DNA present in bacteria.
Question:
5. Are prokaryotes smaller than eukaryotes?
Answer:
Yes, they also come in different shapes but mostly in spheres and rods.
Question:
6. Myxobacterium
Answer:
A bacterium in which cells aggregate to form fruiting bodies.
Transport through different areas in the air.
Asexual reproduction. (mitosis)
Question:
7. Horizontal gene transfer
Answer:
a process by which
bacteria obtain new genes from other bacteria.
, Question:
8. There are three methods to horizontal gene transferring..
they are
Answer:
Conjugation
Transformation
Transduction
Question:
9. Transfer by conjugation is when...
Answer:
DNA(usually a plasmid) from a donor cell is transferred through a pilus into the
recipient cell.
This process usually involves a plasmid.
Plasmids confer antibiotic resistance.
Question:
10. Transfer by transformation is when...
Answer:
DNA released into the environment by dead cells is taken up by a recipient cell.
DNA taken out by bacteria
Question:
11. Transfer by transduction is when...
Answer:
DNA is transferred from a donor to a recipient cell by a virus.
Question:
12. Archie can live in what type of environments?
Answer:
Extreme
They also can produce methane
No peptigolycan in cell wall.
Question:
13. What makes it unique compared to Bacteria and Eukarya?
Answer:
Membranes have a unique lipid composition
