What structure acts as a selective barrier, regulating the traffic of materials into and out of the cell?

Answers

Answer 1
Answer:

Cell membrane (plasma membrane) acts as a selective barrier, regulating the traffic of materials into and out of the cell.

The cell membrane, also known as the plasma membrane, is a crucial component of all living cells. It serves as a selective barrier that controls the movement of substances into and out of the cell. This selective permeability is essential for maintaining the cell's internal environment and regulating the exchange of nutrients, gases, and waste products. The cell membrane consists of a lipid bilayer embedded with proteins, and its hydrophobic interior prevents the passage of most polar molecules.

To facilitate the transport of specific substances, the cell membrane contains various proteins, including transport proteins, receptor proteins, and enzymes. These proteins help regulate the flow of ions, nutrients, and signaling molecules across the membrane. Overall, the cell membrane is a vital structure that ensures the cell's survival and functionality by controlling its interactions with the external environment.

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Answer 2
Answer:

Final answer:

The cell membrane acts as a selective barrier, regulating the traffic of materials into and out of the cell.

Explanation:

The structure that acts as a selective barrier, regulating the traffic of materials into and out of the cell is the cell membrane or plasma membrane.

The cell membrane is composed of a phospholipid bilayer with embedded proteins that control the movement of substances in and out of the cell. It selectively allows certain molecules to pass through while keeping others out, maintaining homeostasis within the cell.

For example, the cell membrane regulates the entry of nutrients and gases into the cell, as well as the removal of waste products and excess substances. It ensures that the cell maintains the appropriate balance of substances for proper functioning.

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Considering that the creation of the Golden Record was an effort to send a snapshot of humanity into space, what would you send out into space to represent humanity today? Explain why you selected your item.

Answers

Probably a photo when we're hanging out with our friends.

It represent humanity at it's best, a social animal who can't live without other people.

Changes in the gene pool can occur due to various mechanisms. In 1989, a large oil spill occurred in Prince William Sound, Alaska, when the Exxon Valdez oil tanker ran aground. Approximately 11 million gallons of oil were spilled and spread 1,300 miles along the Alaskan coastline. The damage from the oil spill affected thousands of animals in the area, including killer whales, harbor seals, sea otters, fish, and sea birds. Which mechanism most likely affected the gene pools of the organism populations in the areas around the oil spill?

Answers

Answer:

genetic drift

Answer:

genetic drift

Explanation:

The process of converting the genetic message from DNA into __________ is called transcription.

Answers

The process of converting the genetic message from DNA into RNA is called transcription.

Transcription is the phase of gene expression in which a certain part of DNA is copied into RNA. Transcription is carried out by the enzyme RNA polymerase which joins nucleotides to produce an RNA strand and uses a DNA strand as a template. The three stages involved in transcription are initiation, elongation, and termination.


Dna transcription is the process of converting the genetic message dna to rna. hope this helps

How do you call the total account debt as of the statement date?A.) APR
B.) Balance
C.) Finance Charges

Answers

The total account debt, as of the statement date, is called the balance. APR is the interest rate and finance charges is the fee representing the credit. The correct answer is B. 

Answer:

B) balance

Explanation:

on plato

There are _____ levels of cell organization recognized by biologists.three
four
five
six

Answers

there are five levels of cell organization recognized by biologists.

There are five levels of cell organization recognized by biologists.


Which of these nutrients can be found in all organic compounds? nitrogen calcium carbon phosphorous

Answers

All organic compounds contain the nutrient known as carbon. As a fundamental building block of life, carbon will always enjoy a presence in organic compounds, from simple structures and rudimentary forms of life through complex lifeforms such as human beings.

The nutrient that can be found in all organic compounds is the carbon. The reason why carbon is found in all organic compounds is described below.

What is organic compounds?

Organic compounds are those chemical compounds found in living organisms which are made up of carbon-hydrogen bonds.

Carbon is the main element in organic compound since it forms its bonds. Typical examples of these organic compounds are:

  • Carbohydrates

  • Protein

  • Fat and oil

Therefore, The nutrient that can be found in all organic compounds is the carbon.

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