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sleet_krkn [62]
3 years ago
5

Which statement best describes a function of the proteins embedded in the plasma membrane of cells? *

Biology
1 answer:
svetlana [45]3 years ago
3 0

Answer:

They selectively allow certain particles into and out of the cell

Explanation:

Proteins in the cell membrane allow some particles to enter and exit the cell. This type of passive transport is called facilitated diffusion.

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What are the 2 key structures in the protein building process during this<br> step?
scoray [572]

Answer: two major steps: transcription and translation

Explanation:

Together, transcription and translation are known as gene expression. During the process of transcription, the information stored in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus.

6 0
3 years ago
5) The troposphere of the Earth's atmosphere supports life because it contains
Alexeev081 [22]

Answer:

I think its A

Explanation:

Because the reason why airplane have closed windows is because we can't breathe in carbon dioxide when we go up. Of course there is oxygen just not a lot as we go up. Why would there be helium in the air? We would sound weird when we skydive.

8 0
3 years ago
If a cell keeps growing why must it eventually divide
Rashid [163]

Answer:

so it can reproduce more cells

8 0
3 years ago
Phosphatases are a family of enzymes that specifically remove phosphate groups from proteins that were added by protein kinases.
crimeas [40]

Answer:

The cell response to the signal will last longer than normal.

Explanation:

The enzyme, protein kinases does the opposite of what phosphatases does, they add a phosphate group to a protein. Both these enzymes regulate the protein activity in a cell.

6 0
3 years ago
Read 2 more answers
When cloning a gene, one of the steps is to use restriction enzymes to insert the gene of interest into a vector. If you separat
nikitadnepr [17]

The question is incomplete as it does not have the options which are:

The empty vector would migrate the same distance as the cloned vector.

It is impossible to know without knowing the identity of the gene of interest.

The empty vector would migrate farther down than the cloned vector.

The cloned vector would migrate farther down than the cloned vector.

Answer:

The empty vector would migrate farther down than the cloned vector.

Explanation:

In recombinant technology, an empty vector is considered a vector which is present without the gene of interest and thus is of small size and the cloned vector is the vector which has a gene of interest along with the usual sequence.

The cloned vector is larger compared to the empty vector as the cloned vector has a gene of interest whereas the empty vector does not have.

In-gel electrophoresis technique, the DNA samples are run and the size of the fragment is known according to the ladder sequence which is used as a reference and have the band size in increasing order from lower side to upper side.

When the vectors sun on the gel, the small size gene will move faster and to the farthest distance compared to the larger DNA that is empty vector will cover the maximum distance while the cloned vector will cover the less distance.

Thus, the selected option is correct.

7 0
3 years ago
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