Bacteria Answers

0 verified answers
3

What would happen to a bacterial cell if its protective covering was destroyed?

A
It would be better protected from the outside environment.
B
It would be able to take in materials more easily.
C
It would be harmed by chemicals in the environment.
D
It would reproduce more slowly.
4

Which series lists the correct order of steps of binary fission from first to last?

A
sex pilus connects two cells ® plasmid DNA is transferred ® complementary DNA strands are created ® cells separate
B
live cells bind to degraded cells ® DNA is transported across the membrane ® DNA is incorporated into recipient's DNA
C
virus infects bacterial cell, new viruses are made ® DNA is assembled in new virus ® new virus infects another bacterial cell and transfers DNA
D
DNA is copied ® DNA molecules attach to cell membrane ® cell membrane elongates and pinches off ® two identical cells are produced
5

Which could best be used to explain why bacteria can infect a person very quickly?

A
outer capsule
B
binary fission
C
protective covering
D
genetic recombination
6

Which form of bacteria is matched correctly to its description?

A
spirillum—has a rod shape and exists in chains or alone
B
coccus—can cause MRSA and has a round shape
C
coccus—can cause acne and has a spiral shape
D
bacillus—has a spherical shape and can form clusters
10

How does Propionibacterium acnes cause acne in humans?

A
Overuse of antibiotics can cause bacteria to clog pores in humans.
B
This type of bacteria is found on the human skin, and it can clog pores.
C
This type of bacteria often enters a cut and causes an infection in humans.
D
Close contact with an infected person can lead to acne in humans.

Did you find these answers helpful?