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earnstyle [38]
3 years ago
9

What role do memory cells play in immunity

Biology
2 answers:
sergiy2304 [10]3 years ago
7 0
They are important in long term memory because they respond faster in a second infection with the same pathogen
saveliy_v [14]3 years ago
6 0
The answer is <span>B lymphocytes are the </span>cells<span> of the </span>immune<span> system that make antibodies to invading pathogens like viruses. They form </span>memory cells<span> that remember the same pathogen for faster antibody production in future infections.</span>
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BRAINLIESTTT ASAP!!!!
Over [174]

When the cells undergo late apoptosis, the membrane structure is destroyed and the nuclear structure can be selectively visualized by Hoechst 33342/PI.

https://www.creative-bioarray.com/support/double-staining-apoptosis-assay-hoechst33342-pi.htm

4 0
2 years ago
Rotenone, a toxic compound isolated from plants, strongly inhibits the transfer of electrons from iron-sulfur centers in Complex
Darya [45]

Answer:

(A) It prevents electron flow from the iron-sulfur centers in complex 1 to the ubiquinone. Due to reduction in electron transfer rate, there is a decrease in the production of ATP which is dangerous for some insects and fish over time.

(B) It also prevents electron flow from cytochrome b to cytochrome c1 at the complex III which leads to QH2 accumulation. If oxidized Q is not present, these is alteration of electron flow and the production of ATP is altered.

(C) Rotenone only prevent electron transfer into the chain at Complex 1  but it does not affect electron transfer at Complex II. Although there is slow ETC, it does not stop completely. However, Antimycin A prevents the oxidation of QH2, the final electron acceptor crom complex I and complex II. Thereby, stopping the production of both ETC and ATP. It can be concluded that antimycin A is a more potent poison.

Explanation:

Rotenone prevents electron flow from the iron-sulfur centers in complex 1 to the ubiquinone. Due to a reduction in electron transfer rate, there is a decrease in the production of ATP which is dangerous for some insects and fish over time. Antimycin A also prevents electron flow from cytochrome b to cytochrome c1 at the complex III which leads to QH2 accumulation. If oxidized Q is not present, there is an alteration of electron flow and the production of ATP is altered. Antimycin A is more potent than rotenone.

7 0
2 years ago
Read 2 more answers
How does a frog get rid of urea/urine? Question 4 options: gills lungs heart kidneys
Mrrafil [7]
A frog gets rid of it's urine through the kidneys because the heart pumps blood throughout the body, the lungs are used to take in O2 molecules and gills are use to filter out the hydrogen in HO2 so they can breathe under water. However the kidneys are part of the waste disposal system (what makes us need trip to the bathroom ever now and then) therefore that is the answer.<span />
8 0
3 years ago
Read 2 more answers
Imagine that a rancher has a herd of cattle with brown hides and short horns. All of his cattle are also relatively short in sta
dmitriy555 [2]

Answer:

The correct answer would be option D.

Explanation:

True breeding is a breeding procedure in which the parents would always produce their progeny with the same phenotype characters as the parents carry. This means for every trait these parents are homozygous so their offspring must show a similar phenotype.

In this case, all cattle are true-breeding which means they homozygous alleles show the progeny will also show similar traits which are short stature with brown hides and short horns.

Thus, the correct answer is option D.

3 0
3 years ago
Which parts of a map would be referenced to find a specific location at 95°E, 24°N? Check all that apply.
Ronch [10]

Answer: lines of latitude

lines of longitude

Explanation:

6 0
3 years ago
Read 2 more answers
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