BIO 302 – These cells kill by engulfing and destroying

10 Jun BIO 302 – These cells kill by engulfing and destroying

Question
These cells kill by engulfing and destroying invading microbes.

Question 38 options:

phagocytic cells

lymphatic cells

basophils

natural killer cells

SaveQuestion 39 (1 point)

“UGA GGU AAG AGC” is an example of a _____sequence.

Question 39 options:

RNA

DNA

Ribosome

This could be DNA or RNA

SaveQuestion 40 (1 point)

These are are large, globular protein complexes produced by B cells during an infection.

Question 40 options:

T cells

Antibodies

Macrophages

Interfeurons

SaveQuestion 41 (1 point)

Which bases are paired together in a strand of DNA?

Question 41 options:

thymine and uracil

uracil and adenine

cytosine and guanine

guanine and adenine

SaveQuestion 42 (1 point)

This is a toxic component of Gram-negative cells capable of inducing a strong immune response in the host by acting as an antigen.

Question 42 options:

exotoxin

lipoteichoic acid

periplasm

endotoxin

SaveQuestion 43 (1 point)

This type of T cell aids the humoral immune system by releasing cytokines to activate B cells and turn them into plasma cells.

Question 43 options:

cytotoxic T cells

regulatory T cells

memory T cells

helper T cells

SaveQuestion 44 (1 point)

The Gram stain is a staining technique that distinguished between the:

Question 44 options:

number of cell membrane present

the growth rate of the cells

the thickness of the cell wall

the color of the cells in their natural habitat

SaveQuestion 45 (1 point)

When a bacterial cell invades a host cells, which of the following may occur?

Question 45 options:

The cell can begin to assemble viral particles and lyse the cell.

The cell pass through the cell to gain access to deep tissues or the bloodstream

Nothing will happen because bacterial cells cannot invade host cells

The virus will spread to adjoining cells

SaveQuestion 46 (1 point)

A viral partical (a virion) can contain all of the following except

Question 46 options:

DNA or RNA genome

capsomeres

ribosomes

envelope

SaveQuestion 47 (1 point)

Which of the following is not a way that new viral particles can leave the host cell?

Question 47 options:

lysis of the host cell

slipping between the phospholipids in the host membrane

budding from the host cell

SaveQuestion 48 (1 point)

HIV is unique because it contains ________________ which allows the RNA genome to be integrated in to the host cell DNA.

Question 48 options:

synthase

transcriptase

helicase

reverse transcriptase

SaveQuestion 49 (1 point)

What do vaccines do?

Question 49 options:

prime the immune system in anticipation of infection

trigger the immune system after an infection

trigger the body to produce antibiotics in case of disease

cause the body to reject all microbial organisms

SaveQuestion 50 (1 point)