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lubasha [3.4K]
3 years ago
6

What system controls voluntary and involuntary life functions?

Biology
1 answer:
Aleksandr [31]3 years ago
5 0
Your correct answer would be A. Nervous system

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Write a three paragraph essay on cellular respiration.Each paragraph should cover one step,in order.Each paragraph should be 3-5
inna [77]

Answer:

Cellular Respiration

As you all know, cellular respiration is one of the, if not the, most important process that goes on in our bodies and other animals' bodies today. Cellular respiration is the process that is opposite from photosynthesis. While plants are taking in carbon dioxide and water to make sugar and oxygen, cellular respiration uses the oxygen and sugar o make carbon dioxide, water and 36 ATP. The three "mini processes" that take place during cellular respiration are glycolysis, oxidative respiration, and the electron transport chain. Fermentation also occurs in some cases where there is no oxygen present.

Glycolysis is the first stage in cellular respiration. It starts with a six-carbon glucose. Then, two ATP come and are converted to two ADP and two phosphates. Those same phosphates are added to the glucose to make a six-carbon glucose phosphate. That is then divided into two 3-carbon sugar phosphates. ADP comes and leaves charged as ATP because of the phosphate. Without the phosphates the process finishes with two 3-carbon piruvates.

If there is no oxygen present after glycolysis, then the next process is fermentation. Fermentation takes the 3-carbon piruvates from glycolysis and adds and electron to them. The result is lactic acid in animals and ethyl alcohol and carbon dioxide from plants, yeast and fungi. Oxygen can then be added back to the lactic acid to form piruvate again.

After glycolysis or after the oxygen is added back to lactic acid from fermentation, the oxidative respiration, also known as the Krebs cycle, takes place. The 3-carbon piruvates are converted to acetyl-CoA. That is then turned into a 6-carbon citrate. After an electron is added to NAD+ to turn it into NADH, a 5-carbon molecule is formed. Then it turns into a 4-carbon molecule which is then recycled.

The electron transport chain is occurring the whole time that cellular respiration is taking place. It starts with a NADH and a FADH2. Electrons and hydrogen ions are added until the final results are NAD and 2H which yields 32ATP and turns O2 into H2O.

Over all there is 2ATP made during glycolysis, 2ATP made during Krebs cycle, and 32ATP made during the electron transport chain for a grand total of 36ATP!!! After all these products are made they are then converted back by photosynthesis and the cycle goes on and on and on.

5 0
3 years ago
Materials are able to move across a cell membrane through one of two methods: active transport or passive transport. What is the
zloy xaker [14]
Essentially the answer is in the names. Active transport requires energy to facilitate to movement of the materials while passive transport is something like osmosis which is when the material moves based on concentration in an effort to create equality between the two sides. Basically passive is when the materials move under the own power. 
5 0
3 years ago
Atoms have particulars with different charges, the _______ has a negative charge.
slava [35]

Answer:

electrons

Explanation:

Protons=positive

electrons=negative

neutrons=neutral

8 0
3 years ago
Read 2 more answers
In the human body, when a tissue becomes damaged, it is usually replaced with scar tissue. The liver is a unique organ because i
Whitepunk [10]

Given what we know, we can confirm that the principle from the cell theory that supports this finding is that existing cells are produced by other living cells.

<h3>What is the cell theory?</h3>

The cell theory is a scientific theory proposed in the middle of the 19th century. It attempts to explain the formation and role of cells. There have been many wrongful iterations of this theory until arriving at the current version that is widely accepted today.

Therefore, we can confirm that the principle from the cell theory that supports this finding is that existing cells are produced by other living cells.

To learn more about cells visit:

brainly.com/question/5763151?referrer=searchResults

5 0
2 years ago
What percent of the offspring will receive the recessive phenotype when crossing two heterozygous individuals? assume normal dom
Irina-Kira [14]

The answer is 25%. The other 75% will have dominant phenotype. However, in the dominant phenotype, 25% have a homozygous dominant genotype, while the remaining 50% have a heterozygous genotype. Find attached a punnet square that will clearly illustrate this;






7 0
3 years ago
Read 2 more answers
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