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olga nikolaevna [1]
3 years ago
14

What is the name of the cell that activates CD4 and CD8 cells?

Biology
1 answer:
julsineya [31]3 years ago
5 0

Hey there! Let's solve the problem:

CD4 T cells activate CD8 T cells through an underhanded cycle including an antigen presenting cell (APC), customarily a standard dendritic cell (DC). An APC presents a peptide to a true CD4 T cell through a Class II MHC molecule.

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Which of the following are characteristics of archaeal cell membranes that probably help them survive at very high temperatures?
torisob [31]

Answer:

Option-B, C and E

Explanation:

Archaebacteria are a group of prokaryotes which can survive the extreme conditions. The archaebacteria which can survive very high temperature are called hyperthermophiles. The hyperthermophilic bacteria can survive temperature range between 70 t 125 °C observed in hydrothermal vents.

The archaea bacteria can withstand the high temperature as their membrane is adaptive. The membrane of the archaea is more stable due to the ether linkage which makes carbon less chemically reactive. The phospholipids possess a monolayer which decreases the layer fluidity and thus the unwanted movement of molecules.

The archaea also contain cyclopentane rings in the ester-linked phospholipids which allows tight pacing of the molecules which decrease the movement of solute into and out of the cell.

Thus, the selected options are correct.

6 0
3 years ago
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Dmitry_Shevchenko [17]
The correct answer is that it "naturally favor the formation of products".
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6 0
3 years ago
Worn away statuses mechanical or chemical weatherting
aksik [14]
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7 0
3 years ago
Explain why using different seed types along with different water temperatures is an improper experimental design.
Darya [45]

Answer:

Because each subject in an experiment has to have equal conditions to ensure the most accurate results. And water temperature is known to impact plant growth. An experiment using different water temperatures is a terribly inaccurate experiment.

4 0
1 year ago
In which location will you see polaris at the highest altitude in the sky
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The location northward the Polaris climbs higher in the sky.
3 0
3 years ago
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