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Lelu [443]
2 years ago
10

Membrane rafts are found in the cytoplasmic membranes of.

Biology
1 answer:
sveta [45]2 years ago
4 0

Answer:

Membrane Lipid Rafts.

Explanation:

They are present in all cells and have been implicated in a variety of sorting and signaling processes. They are rich in cholesterol, sphingomyelin, and glycosylphosphatidylinositol (GPI)-anchored proteins; have more ordered acyl side chains; and are thicker than nonraft bilayer domains.

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What are the four stages of complete metamorphosis?
Sedbober [7]
Egg, larva, pupa and adult
3 0
3 years ago
What is the substance called at the top of the test tube after using<br> this centrifuge machine?
Kryger [21]

Answer:

supernatant

Explanation:

8 0
2 years ago
Hydrolysis of which molecule is important for translation initiation, elongation, and termination?
abruzzese [7]

Answer:

D. GTP

Explanation:

Initiation of protein synthesis includes binding of mRNA to small ribosome subunit and initiation aminoacyl tRNA. The pairing of the anticodon of the initiating aminoacyl tRNA and initiation codon of mRNA requires GTP hydrolysis and marks the beginning of protein synthesis.  

Elongation stage of protein synthesis requires movement of the ribosome along the mRNA which in turn is facilitated by GTP hydrolysis. As the ribosome moves along the mRNA, the codon of mRNA bind to the respective anticodon of aminoacyl tRNA by using the energy of GTP hydrolysis. The GTPase activity of elongation factor Ef-Tu ensures the fidelity of the process.  

The release factors that recognize the stop codon and serve to mark the termination of protein synthesis use the energy of GTP hydrolysis during the process.

4 0
2 years ago
Imagine that you are outside on a cold day and have removed your gloves to answer your phone. Which statement is true regarding
Klio2033 [76]

Answer:

The correct answer will be option-C

Explanation:

Mammals are warm-blooded animals that are they need to maintain the internal temperature irrespective of the external temperature at a constant rate or 37° C.

In cold conditions the person exposing the body parts to cold conditions response either by producing heat or conserving the heat in the body.

If a person removes the gloves, then a physiological change leads to the change in the diameter of the blood vessels. The diameter of the blood vessels reduces which reduces the loss of heat from the body as constriction of the blood vessels decreases the surface area to be exposed to cold conditions.

Thus, Option-C is the correct answer.

4 0
3 years ago
Explain why and how theories may be changed or replaced over time.
Tpy6a [65]

Answer and Explanation: This is true that theories do change or get replaced overtime. We all know that in any scientific investigation the scientist put forth the theories which are basically the ideas explaining something particular. We also know that the world is experiencing constant changes and those changes could be of Technology or of overall world order so, whenever a scientist gives us the theory, that theory is made according to the situations and environment of that particular time and in future with the passage of time and with the advancement of Technology and other variables, scientist do need to re-evaluate theories. They either make some positive changes keeping in view the changing circumstances of the current situation or discard the theory altogether depending on its nature. The name research itself indicate that scientists research the already searched idea and in that way the New theory which comes after the modification of old theory or altogether the new theory takes place of the old one.

8 0
3 years ago
Read 2 more answers
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