Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

Answers

Answer 1

Answer: The answer is the cell membrane. The cell membrane controls what nutrients come in, and what unneeded material comes out. It protects the cell from anything that might come in and harm it. It is kind of like the security guard. A security guard let's the good people in and keeps the bad people out.

Answer 2

Answer:

Final answer:

The cell membrane is comparable to a security guard. It regulates the substances that enter and exit cells, allowing necessary substances in and keeping harmful ones out.

Explanation:

The organelle that can be compared to a security guard who determines who is allowed to enter and exit a building is the cell membrane. The cell membrane, also known as the plasma membrane, is a biological structure that separates the interior of cells from the outside environment. It functions similarly to a security gatekeeper, regulating the transport of substances in and out of cells. For example, it allows useful substances such as glucose and amino acids to enter the cell while preventing harmful substances from entering. In this way, the cell membrane ensures the safety and functionality of the cell, acting as its security guard.

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Where does the heat from your body comes from?

Answers

Every cell in the body produces heat as they burn up energy. Some organs will be on more than others, such as the brain, or muscles if you are exercising, therefore they get hotter. This needs to be spread around the body and this is done by the blood, which heats some organs and cools others.

Which of the following is true about soil color? a. A dark color indicates that the soil is poor in organic matter. b. Bright yellow and red colors indicate large amounts of organic matter. c. Yellow or red hues in the soil indicate the presence of iron or aluminum. d. Yellow or red hues in the soil indicate the presence of calcium or magnesium.

Answers

Answer: c. Yellow or red hues in the soil indicate the presence of iron or aluminum.

Soil color is a property of soil, it depends on various factors like the amount of organic matter present in the soil, type of minerals and porosity of soil (amount of pores present in the soil). Usually, dark soils have comparatively higher organic matter content than light colored soils.

Yellow or red hues in the soil indicates the presence of iron or aluminum it is the true statement about soil color. It depicts the fact that the color of soil is because of presence of particular mineral in it. Yellow or red color of the soil is an indicative of iron in the oxidized form as ferric iron oxides.

The only one correct answer would be:

c. Yellow or red hues in the soil indicate the presence of iron or aluminum.

Drinking non-potable water does not carry significant health risks

Answers

Non potable waters are not for drinking. It is not safe to be drink that's why drinking it can carry significant health risk on our body. Non potable waters are only for irrigation and other non drinking water activity. POtable waters are the water that is clean and safe to drink

The statement that Drinking non-potable water does not carry significant health risks is true

What is the importance of potable drinking water for good health?

Non-potable water is not intended for human consumption since it has not been treated to drinking water standards. In addition to recycled water, non-potable water, such as raw (untreated) water from reservoirs, is utilized for agriculture and other purposes . It's critical to drink enough water each day for health.

By staying hydrated, you can avoid being dehydrated, a condition that can impair your memory, alter your mood, cause your body to overheat, and result in constipation and kidney stones.

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complete question;

Drinking non-potable water does not carry significant health risks True/ false

How many times larger is the number of hydrogen atoms than oxygen atoms in a molecule of glucose ?

Answers

Well the symbol for water is H2O so there are 2 hydrogen for every 1 Oxygen,which means there will be two times the amount of hydrogen atoms than oxygen.

Final answer:

In a glucose molecule, the number of hydrogen atoms is two times greater than the number of oxygen atoms.

Explanation:

The molecular formula for glucose is C6H12O6, which means that one molecule of glucose contains 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms. So, if we compare the number of hydrogen atoms to the number of oxygen atoms in a glucose molecule, we see that there are 12/6 = 2 times more hydrogen atoms than oxygen atoms. This effectively answers the question: how many times larger is the number of hydrogen atoms than oxygen atoms in a molecule of glucose.