Lab Bio Ch. 6 Quizs

Why are endospores created by some bacteria?

• To protect the DNA when external conditions are unfavorable (and potentially harmful) to the bacteria

• To protect the cell membrane when external conditions are unfavorable (and potentially harmful) to the bacteria

• To protect the DNA during binary fission

• To protect the DNA and allow for recombination

This process allows bacteria to "swap" DNA with each other. It involves creating a "bridge" between two bacteria, that the DNA can travel across.

• binary fission

• pilus

• conjugation

• endospore

This occurs when a sufficient percentage of a population is immune to an infectious disease which indirectly protects those who are not immune from it:

• herd immunity

• vaccination

• epidemiology

• zoonosis

The special Y-shaped proteins that your immune system creates in response to an invading pathogen are called:

• prophages

• antibodies

• antigens

• plasmids

Natural killer cells, B cells and memory B cells are all types of white blood cells, which are more technically called:

• lysogenics

• bacteriophages

• leukocytes

• immunity cells

The total of all microorganisms found in a particular environment, such as your intestines:

• probiotics

• recombination

• microbiology

• microbiome

This is the most common way bacteria reproduce. It involves making a complete copy of the DNA, increasing in size and then splitting in half:

• binary fission

• binary fusion

• cell division

• conjugation

The unique proteins found on the surface of pathogens are called:

• antibiotics

• antibodies

• antigens

• capsids

Which of the following is NOT a reason why some bacteria are beneficial?

• They can be a part of the base of certain food chains

• They assist in the decomposition of certain materials

• They can be used to create antibiotic resistance

• They can be used to make certain medications (ex: human insulin)

This is a process of injecting a weakened/mild form of a virus into the body in order to produce immunity against it:

• antibiotic resistance

• vaccination

• herd immunity

• zoonosis