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tatiyna
3 years ago
7

What is the structure of mitochondrion, cell wall, cell membrane, and the nucleus

Biology
1 answer:
Romashka-Z-Leto [24]3 years ago
8 0

Answer:

The mitochondria are called the powerhouses of the cell, where ATP is produced. It is composed of an inner membrane called cristae, and an outer membrane that covers the organelle.

The cell wall is a rigid structure made from(in the case of plant cells rather than bacteria or fungi) cellulose and other rigid fibers.

The cell membrane is a fluid, thinner structure made up of a double layer of phospholipids which are comprised of the hydrophilic heads facing outwards and hydrophobic tails facing toward each other in the layer.

The nucleus  has protons, and neutrons that are contained within it, and electrons around it.

Explanation:

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larger and cooler I think or larger and warmer

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3 years ago
Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
Sveta_85 [38]

The correct answer would be that substance A is rice, and substance B is sugar.

For substance A to be filtered out, it means that A is a water-insoluble substance and for substance B to be recoverable by evaporating off the water, it means that B is water-soluble.

Thus, A can neither be sugar nor alcohol because neither can be recovered by filtration. Also, B can neither be coffee nor alcohol because they can not be recovered as residue through evaporation of water.

Therefore, the only correct answer is that substance A is rice, and substance B is sugar because rice can be filtered out from water while the water-soluble sugar can be recovered by evaporating the water.

More about separating mixtures here: brainly.com/question/2827008

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3 years ago
Lincoln says the "insurgents" wanted to fight. Why?
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President Lincoln said the "insurgents" wanted to fight because they wanted to extend and perpetuate slavery. At the end of the Civil War, the "insurgents" did not get their wish. The correct answer is B.
4 0
3 years ago
Which of these processes does not require the cell to use energy A cell division b protein synthesis c DNA replication D diffusi
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Answer:

D diffusion across a membrane

Explanation:

Based on whether or not energy input is required, there are two types of processes viz: passive and active. Passive processes are those that do not require energy input in form of ATP while active processes require energy input to occur.

An example of passive process is DIFFUSION, which is the movement of molecules from a region of high concentration to a region of low concentration across a membrane. Diffusion is passive i.e does not require energy, because movement occurs down a concentration gradient.

Other processes in the options like cell division, DNA replication and protein synthesis all require energy input to occur.

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3 years ago
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