Which of these mechanisms do cytotoxic t (tc) cells use to destroy a target--that is, deliver a lethal hit?

2 answers:

6 0

Cytotoxic T cells use two basic mechanisms to destroy target cells: 1. Cytotoxic T cells release perforins which create pores on the target cells and granzymes which stimulate the apostosis of the target cells by exocytosis. 2. Cytotoxic T cells bind specific membrane receptors on the target cells and stimulate apostosis process which eliminate the target cells.

Andreyy893 years ago

5 0

The answer to this question is PERFORATION OF THE MEMBRANE. Actually, the Cytotoxic T cells are the ones that kill cancer cells, and other cells that are infected or damaged. What this cytotoxic T cells do is that they release cytotoxins and this would result to apoptosis or cell death. How this is effectively done is through the perforation of the membrane.

You might be interested in

Which problem arises when the same crop is grown year after year in the same field?

miskamm [114]

Answer:

The crop has an increasing need for fertilizers, herbicides, and pesticides.

Explanation:

I just took the test, lol.

6 0

3 years ago

How does pollination take place in parts of the world where there is no pollination

Romashka-Z-Leto [24]

The wind, or bees and butterflies carry the pollen to places where it is obsolete.

6 0

3 years ago

As Henry is exercising he pushes against a beam with a force of 25 Newton’s.The beam does not move.Which statement is true.

kykrilka [37]

Answer: During the action there was equal and opposite force.

Explanation: since the force exerted by Henry is equal to the resisting force of the beam it won't move.

3 0

3 years ago

I really need help with this

Radda [10]

Answer:It should be D

Explanation:

4 0

3 years ago

Describe the phases of the cell cycle. be sure to include the name of each phase and what is occurring within the cell during ea

julsineya [31]

Actively dividing eukaryote cells pass through a series of stages known collectively as the cell cycle: two gap phases (G1 and G2); an S (for synthesis) phase, in which the genetic material is duplicated; and an M phase, in which mitosis partitions the genetic material and the cell divides.

G1 phase. Metabolic changes prepare the cell for division. At a certain point - the restriction point - the cell is committed to division and moves into the S phase.S phase. DNA synthesis replicates the genetic material. Each chromosome now consists of two sister chromatids.G2 phase. Metabolic changes assemble the cytoplasmic materials necessary for mitosis and cytokinesis.M phase. A nuclear division (mitosis) followed by a cell division (cytokinesis).

The period between mitotic divisions - that is, G1, S and G2 - is known as interphase.

Mitosis is a form of eukaryotic cell division that produces two daughter cells with the same genetic component as the parent cell. Chromosomes replicated during the S phase are divided in such a way as to ensure that each daughter cell receives a copy of every chromosome. In actively dividing animal cells, the whole process takes about one hour.

7 0

3 years ago