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labwork [276]
3 years ago
12

How would a cell send a protein to another cell? Discuss the process starting from the Nucleus and ending in the other cell.

Biology
1 answer:
faltersainse [42]3 years ago
3 0

Answer:

Explanation:

Suppose that you have a very precious piece of information. Let’s imagine that this piece of information is a blueprint. In fact, it’s not just a blueprint for a house, or a car, or even a top-secret fighter jet. It’s a blueprint for an entire organism – you – and it not only specifies how to put you together, but also provides the information that enables every cell in your body to keep functioning from moment to moment.

Sounds important, right? You’d probably want to keep information this valuable in a secure spot, perhaps in a protected vault where you can keep an eye on it. In fact, that’s exactly what eukaryotic cells do with their genetic material, placing it in a membrane-enclosed repository called the nucleus.

Eukaryotic DNA never leaves the nucleus; instead, it’s transcribed (copied) into RNA molecules, which may then travel out of the nucleus. In the cytosol, some RNAs associate with structures called ribosomes, where they direct synthesis of proteins. (Other RNAs play functional roles in the cell, serving as structural components of the ribosome or regulating activity of genes.) Here, we’ll look in a little more detail at the structure of the nucleus and ribosomes.

[Do all cells have just one nucleus?]

The nucleus

The nucleus (plural, nuclei) houses the cell’s genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm.

Enclosing the nucleoplasm is the nuclear envelope, which is made up of two layers of membrane: an outer membrane and an inner membrane. Each of these membranes contains two layers of phospholipids, arranged with their tails pointing inward (forming a phospholipid bilayer). There’s a thin space between the two layers of the nuclear envelope, and this space is directly connected to the interior of another membranous organelle, the endoplasmic reticulum.

Nuclear pores, small channels that span the nuclear envelope, let substances enter and exit the nucleus. Each pore is lined by a set of proteins, called the nuclear pore complex, that control what molecules can go in or out.

If you look at a microscope image of the nucleus, you may notice – depending on the type of stain used to visualize the cell – that there’s a dark spot inside it. This darkly staining region is called the nucleolus, and it’s the site in which new ribosomes are assembled.

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Answer:

c.

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Because youcaring electrons from photosystem II, to photosystem I, to NADP+

I took this test about it hope that helps :D

5 0
3 years ago
After taking a psychoactive drug for many years, Carl stops taking it. He finds withdrawal to be physically painful, because the
Contact [7]
<h2>Correct Answer is option "d"</h2>

Explanation:

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8 0
3 years ago
Using the picture below determine the type of mutation that has occurred.
Kazeer [188]

Answer:

Deletion

Explanation:

Deletion is the act of a gene being removed from a chromosome, making it mutated.

8 0
2 years ago
We breathe more quickly and deeply when we exercise. Why does this make sense? Select all that apply. a) Because when we exercis
storchak [24]

Answer:

a) Because when we exercise, we hydrolyze more ATP to ADP and Pi, and O2 is necessary for the hydrolysis, so we increase our intake of oxygen.

c) Because when we exercise, we produce more CO2 and increased ventilation is necessary to rid ourselves of CO2.

d) Because when we exercise, we use more ATP, and additional O2 is necessary to generate sufficient ATP.

Explanation:

During exercise , our body needs more energy in the form of ATP. This ATP comes from break down of food materials in the mitochondria of the cell during cellular respiration. With the addition of oxygen, more ATP is produced during respiration and this ATP is used by the body. With ATP, carbon dioxide is produced as a waste material which can be removed by exhaled out during breathing.

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Which pair of atom an ionic bond
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Between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.
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3 years ago
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