Answers Snider - Biology Living Earth B Summer 2026Protists and Fungi

Bacteria Answers

0 verified answers

Free Preview

What is the advantage of genetic recombination as a mode of reproduction in bacteria?

less time finding other bacteria

higher rates of reproduction

more susceptibility to antibiotics

greater genetic variation

Free Preview

Which correctly describes a process that occurs in bacteria?

In binary fission, the two new cells that are formed are susceptible to the same antibiotic.

In conjugation, bacterial DNA is transferred from one bacterium to another by a replicating virus.

In transduction, the cells that are formed are susceptible to the same antibiotic.

In transformation, a special sex pilus is required to connect two bacterial cells.

Which form of bacteria is matched correctly to its description?

spirillum—has a rod shape and exists in chains or alone

coccus—can cause MRSA and has a round shape

coccus—can cause acne and has a spiral shape

bacillus—has a spherical shape and can form clusters

Fast reproduction by binary fission enables bacteria to

cause infections in other organisms.

quickly modify their DNA to changing conditions.

change shape from coccus to bacillus.

transfer DNA from one cell to another.

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

outer capsule

binary fission

protective covering

genetic recombination

How does Propionibacterium acnes cause acne in humans?

Overuse of antibiotics can cause bacteria to clog pores in humans.

This type of bacteria is found on the human skin, and it can clog pores.

This type of bacteria often enters a cut and causes an infection in humans.

Close contact with an infected person can lead to acne in humans.

Consider this microscopic image of bacteria. Which bacterial shape is shown in the image?

oval

rod shaped

spherical

spiral

Which mode of genetic recombination is matched correctly with its description?

transduction—virus transfers genes from one bacteria to another

conjugation—involves splitting of one cell and results in two identical cells

binary fission—requires direct cell-to-cell contact of bacteria

transformation—uses a pilus to transmit genetic information between bacteria

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

sex pilus connects two cells ® plasmid DNA is transferred ® complementary DNA strands are created ® cells separate

live cells bind to degraded cells ® DNA is transported across the membrane ® DNA is incorporated into recipient's DNA

virus infects bacterial cell, new viruses are made ® DNA is assembled in new virus ® new virus infects another bacterial cell and transfers DNA

DNA is copied ® DNA molecules attach to cell membrane ® cell membrane elongates and pinches off ® two identical cells are produced

Which scientist devised tests that helped confirm that bacteria and other microorganisms cause a variety of diseases?

Robert Koch

Anton van Leeuwenhoek

Louis Pasteur

Alexander Fleming

Did you find these answers helpful?

Bacteria Answers

More from this Course

TRY EDGENUITY HACKS