What’s the role of oxygen in cellular respiration? Help please ASAP

Whats The Role Of Oxygen In Cellular Respiration? Help Please ASAP

Answers

Answer 1

Answer:

The letter A is the right answer.

Explanation:

Cellular respiration occurs in the presence of oxygen. This element is essential in the cellular respiration process, since it is responsible for accepting electrons and keeping the electron transport chain functioning.

Cellular respiration occurs after glycolysis, where pyruvate is formed along with 2 molecules of ATP. In the presence of oxygen, pyruvate is oxidized to a two-carbon compound that will react with co-enzyme-A and form NADH and CO2. This process will start the electron transport chain that will result in a protonic gradient that will transform ADP into ATP. The electron receptor in this process is oxygen, which will later be combined with hydrogen molecules to form water.

Answer 2
Final answer:

In cellular respiration, oxygen acts as the final electron acceptor in the electron transport chain. It combines with electrons and hydrogen ions to create water, facilitating the creation of ATP, the cell's primary energy source.

Explanation:

Oxygen plays a critical role in the process of cellular respiration, a process used by cells to convert glucose into ATP (Adenosine triphosphate), which provides energy for the cell's activities. During cellular respiration, oxygen is used in the final stage called the electron transport chain. Here, oxygen acts as the final electron acceptor, combining with electrons and hydrogen ions to produce water. This process creates a gradient that powers the creation of ATP, the cell's primary energy source. Without oxygen, many cells can't create ATP efficiently.

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Related Questions

I NEED A ANSWER
Non-motile Cells have a nucleus Multicellular Living Reproduces sexually What Kingdom is being described by the above characteristics?
A) Kingdom Animalia
B) Kingdom Plantae
C) Kingdom Protista
D) Not enough information given

Answers

The right answer is: Kingdom Plantae 

The term "plants" includes plant organisms, mostly terrestrial, consisting of an upper leafy stem and anchored (planted) in the soil.

Plantae kingdom contains only non-motile multicellular nucleated organisms.
Not all of the Animalia are non-motile (spermatozoids and some immune cells are mobile).
Protista Are unicellular organisms, not multicellular.

Answer:

B\

Explanation:

Why is soil important for terrestrial ecosystem?

Answers

Because soil filters out the water which provides essential nutrients to our forests and crops, and helps regulate the Earth's temperature as well as many of the important greenhouse gases.

A star in a distant galaxy is 97 trillion km from earth.How many years would it take light to get from the star to earth?

Answers

10.3 years; speed of light = 299,792 km/s (Internet)

(97*10^12 km)/(299,792 km/s)=323,557,666.6 seconds

Convert seconds to years which should give you 10.3 years. Looks reasonable

Compare and contrast the terms living and biotic

Answers

both the terms "living" and "biotic" describe an organism that holds life. However, an organisms stops "living" after it dies, but never stops being "biotic". This is because "biotic" means anything that has ever had life, whereas "living" only describes things currently alive.
Final answer:

The terms 'living' and 'biotic' are used in biology, each with distinct meaning. 'Living' refers to organisms that demonstrate the characteristics of life, while 'biotic' refers to all biological components, living or dead, within an ecosystem.

Explanation:

The terms living and biotic are often used interchangeably in biology, but they carry subtle differences. When we say 'living', we are typically referring to anything that exhibits all characteristics of life - growth, reproduction, metabolism, response to environment, and evolution. For example, animals, plants, and microorganisms.

However, the term 'biotic' is broader and not limited to only living organisms. It encompasses all biological factors in an ecosystem, including organisms, their residues, and their influences on each other. Biotic factors include living organisms (like plants and animals), dead organisms, and components produced by organisms (like waste products).

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the energy role of a grizzly bear is that of a {n} ------because it cannot make its own food

Answers

your answer is Consumer

Answer:

The answer is Consumer just took the test Hope this helps! Have a great day!

A person who is interested in learning more about the "fight or flight" response may pursue a career in

endocrinology
gene therapy
microbiology
sports medicine

Answers

endocrinology. That would be the correct answer. {:)

Answer:

The correct answer would be endocrinology.

The fight and flight response are stress response generated or regulated by hormones such as epinephrine and norepinephrine which are released from the adrenal gland.

Other hormones like testosterone, estrogen, and cortisol and neurotransmitters such as dopamine and serotonin also affect the organism's response to stress.

Thus, endocrinology would be the best career in order to learn more about these responses as endocrinology refers to the branch of science which deals with the endocrine system, hormones, and associated diseases.

Which of these best describes the material inside Earth's mantle? Remains stationary Moves in a circular motion Rises up but does not sink down Sinks down but does not rise up

Answers

Answer: The second answer because, the Earth's mantle is mainly a fluid, but sometimes a solid. It rises, but never sinks.

Hope his helped! <3
Hey there Lizard!

So, based from your options, I believe that the best option that would make the most sense in this case would be of that on how the material inside the earth's mantel would rise up, but, it would also not sink. So, basically,it rises, and it wont sink, it goes up and down, which in this case, it's a good thing and it's also pretty neat to see this.

So, based from your options listed above, your correct answer to this question would be of that (Rises up but does not sink down)

I really hope this helps you!

explain 3 ways that your body can defend itself against pathogens

Answers

The body can defend itself from pathogens using white blood cells, the respiratory system, and digestive system. White blood cells fight against the pathogens by ingesting them. Certain white blood cells called lymphocytes produce antibodies that destroy pathogens by finding antigens, the foreign chemicals released by the pathogen. The respiratory system defends the body from pathogens each time you sneeze or cough. Cilia and mucus also protect the body by trapping dirt and other particles. The digestive system destroys pathogens with saliva, mucus, enzymes, and stomach acid. 
 

Which is the correct order the organisms would appear during primary succession?

Question 3 options:

Lichens, bushes and shrubs, grasses and annual flowers, trees, mosses


Bushes and shrubs, mosses, lichens, grasses and annual flowers, trees


Mosses, trees, lichens, grasses and annual flowers, bushes and shrubs


Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees

Answers

Liches, mosses, grasses and annual flowers, bushes and shrubs, trees. Primary succesion is a type of succesion occuring in an environment. This is a gradual growth of ecosystem from an area without vegatation. This can happen from simple to a more complex organism. The pioneer plants are usually the hard organism that can strive at aharsh condition and gradually shifting to a more adapted to less harsh conditions.

The correct order for primary succession is lichens, mosses, grasses and annual flowers, bushes and shrubs, trees.

The correct order of organisms during primary succession follows a predictable sequence, starting from the colonization of barren land or rock by pioneer species to the establishment of more complex plant communities. Let's break down the options provided and identify the correct order:

1. Lichens, bushes and shrubs, grasses and annual flowers, trees, mosses:

  This sequence starts with lichens, which is accurate as lichens are among the first organisms to colonize barren environments. However, it then jumps to bushes and shrubs, which typically come later in succession. Grasses and annual flowers generally establish themselves before trees. Finally, mosses usually appear before trees in primary succession. So, this sequence is not entirely accurate.

2. Bushes and shrubs, mosses, lichens, grasses and annual flowers, trees:

  This order begins with bushes and shrubs, which are typically later successional species. Mosses come before lichens in primary succession, and grasses and annual flowers usually precede trees. Therefore, this sequence is also incorrect.

3. Mosses, trees, lichens, grasses and annual flowers, bushes and shrubs:

  This sequence starts with mosses, which is accurate as they are early colonizers. However, trees generally come after grasses and annual flowers in primary succession. Lichens typically precede grasses and annual flowers as well. So, this order is not correct.

4. Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees:

  This sequence begins with lichens, which is accurate as they are primary colonizers. Mosses usually follow lichens, making this part of the sequence correct. Grasses and annual flowers come before bushes and shrubs, which is accurate. Finally, trees typically represent the climax stage of primary succession, making this order correct.

Therefore, the correct order is Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees.

Evaluate the following scenario: Two days after visiting a pet shop and observing green parrots in a dis- play cage and fish in an aquarium, a student developed a fever, became quite ill, and was diagnosed with parrot fever. What might be the dis- ease reservoir and possible transmis- sion method?

Answers

In the scenario give above, the disease reservoir is the PARROT and the possible transmission method is INDIRECT CONTACT THROUGH AIR.
Disease reservoir refers to a source of a particular pathogen in an environment. A disease reservoir can be a person, an animal or an inanimate object like soil. In the case given above, the parrot is the disease reservoir and it passes the disease pathogen to the student. Pathogens are transmitted through four distinct ways, these are: direct contact, indirectly through the air, indirectly through contaminated object and through vectors. The disease pathogen was possibly passed to the student when the parrot was talking via tiny mucus droplets that escape from the bird's mouth.

The student most likely got parrot fever from inhaling aerosolized bird droppings or secretions from green parrots, which served as the disease reservoir. This transmission method is typical for zoonotic diseases. Proper handling and hygiene can help prevent the spread of such infections.

The student likely contracted parrot fever (psittacosis), a zoonotic disease caused by the bacteria Chlamydia psittaci, which can be transmitted from birds to humans.

The disease reservoir in this scenario is the green parrots observed at the pet shop. The probable transmission method is through inhalation of aerosolized bird droppings or secretions that contain the bacteria.

Parrot fever typically presents with flu-like symptoms, including fever, headache, and respiratory issues. It's important to handle birds with care and ensure good hygiene to prevent the spread of zoonotic diseases like these.

A forest fire destroyed large tracts of forest in California.however, within a few years , the forest regenerated and will soon return to its original state . What is the reason the forest is able to regenerate?

Answers

California is very well known for fires so in this case I'd say go with the answer of "SEROTINOUS CONES" which are special "seeds" to easier put it that only spread with the aid of fire. These cones are spread by fire/wind/gravity as time goes by the trees will grow back as a result. 

Another well said answer can be secondary succession. Secondary succession "reduces an already established ecosystem to a smaller population of species" or series of changes that take place after disasters on forests/general like fires.

What happens to the water particles in a wave?


The wave pushes the water particles forward.


The water particles move in a circular pattern.


The wind pushes the water particles down.


The water particles move up through the wave.

Answers

the answer would be B

The water particles move in a circular pattern in a wave. Hence, the correct option is B.

What is a water wave?

Water waves are the surface waves that are a combination of both longitudinal and transverse wave.

During the distortion, the water particles remain in the same position as they propagate with the same wave. They are formed by the interaction between the sun, moon, and the earth. They are also very important in nature, the wind moving above the water surface are also responsible for the formation of water waves.

There are basically three types of water waves: sea waves of seismic origin (tsunamis), swell waves, and wind surges. Hence, the correct option is B.

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Which of these is the direct result of an error in the transcription of a DNA nucleotide?

Answers

The right answer is A codon sequence is incorrect.

Biologists have compared the corresponding DNA and RNA sequences in B cells (white blood cells), the material being provided by various ongoing sequencing projects. They identified more than 10,000 sites where the two molecules differ, with about 40 percent of the genes having at least one transcription error. This error can be found at the level of the codons of the amino acids, which implies a change of one amino acid by another.

The result of an error in the transcription of a DNA nucleotide is  a codon sequence is incorrect.

Transcription:

It is the process in which DNA code is converted to the mRNA code. 3 nucleotide combination code for an amino acid.If there is an error in the in the transcription result in defect in codons. and this result defective proteins.

So, the result of an error in the transcription of a DNA nucleotide is  a codon sequence is incorrect.

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Why is a symptomless STI just as dangerous as an STI that exhibits symptoms? Explain your answer.

Answers

A symptomless STI is just as dangerous as an STI that exhibits symptoms because they are still infections that are transmitted through sexual behaviors. Even if they don't show symptoms, they still leave a negative impact on the body.

It would take one light year to travel to the sun. True False

Answers

4.3 light-years away
Hey there 

the answer is :

False

 in fact Earth is always precisely 1 AU from the Sun.

Hopes this helps u :)

What is most likely evidence of an energy transformation taking place when a hot plate that has a beaker containing solid wax placed on it is turned on

Answers

Answer:

melting point and heat transfer

Answer: A - "Wax starts melting as kinetic energy is transformed into thermal energy"

Explanation:

I took the test

From which graph below would you conclude that velocity decreases directly with time?

Answers

Answer:

its z

Explanation:

i got it right

To conserve body heat, vasoconstriction restricts blood flow to the periphery but not to the body’s core. Explain how this is an adaptation for survival

Answers

Vasoconstriction is an adaptation for survival because by restricting the blood flow to your “periphery” the more warm blood gets pumped to your vital organs keeping them alive, for example you might get frostbite on your fingers and toes because they are non essential, but your organs will be okay because the warm blood is keeping them from turning to ice. Humans adapted this way to survive in cold climates.

Vasoconstriction is a survival adaptation because restricting blood flow to your "periphery" allows more warm blood to be pumped to your vital organs, keeping them alive.

What is vasoconstriction?

Vasoconstriction is the shrinking (constriction) of blood vessels engendered by the contraction of small muscles in their walls.

Blood flow is slowed or blocked when blood vessels constrict. Vasoconstriction can range from mild to severe. It can be caused by disease, drugs, or psychological conditions.

Vasoconstriction is required to maintain healthy blood flow and prevent your body from becoming too cold. It can also be used to raise blood pressure when necessary.

Some medications cause vasoconstriction by mimicking your body's natural signals. This could save your life.

Vasoconstriction is a sustenance adaptation because it allows more warm blood to be circulated to your vital organs, keeping them alive.

Thus, this way this is an adaptation to survival.

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what do solid fats have a high protein of

Answers

Saturated fats? I hope this right

Look at the diagram above of a marine food web. What might happen to this ecosystem if the non-native populations of smelt and alewife increase greatly?
Question 1 options:


1.The smelt will eat the alewife.


2.The salmon will starve.


3.The smelt and alewife may out-compete the native fish by consuming all of the zooplankton.


4.Nothing should happen to this ecosystem if the populations of smelt and alewife increase greatly.


https://learning.k12.com/content/enforced/355549-COF_ID90293/native%20and%20nonnative%20species%20diagram.JPG?_&d2lSessionVal=rxl7Rt97bvS7kurIszdj3PvgN

Answers

I think it is 3 because I’m not sure of the others
The correct answer is 3- The smelt and alewife may out-compete the native fish by consuming all of the zooplankton.

The diagram tells us that zooplankton is eaten by smelts and alewifes. If these two species increase in number, less of the zooplankton will be left for plankton-eating fish, which is a native type of fish, to eat.

smelt and alewife eat most of the existing plankton so, they are out-competing the native fish.

11. What are the steps involved in DNA replication?
a. Replication begins when the DNA double helix ___.
b. The nitrogenous base pairs pull apart from each other at a ____, exposing the two strands.
c. As the double helix continues to open, new nitrogenous ____ are added on both sides.

Answers

DNA replication is the process in which a new DNA strand is synthesised from the existing DNA strand using that as the template.
DNA strands are built from building blocks of units called nucleotides, DNA exists as a double helix which means that two complementary strands are wound around each other and bonded by hydrogen bonds between the nitrogenous bases in the nucleotides.
1. replication begins when the DNA double helix unwinds
DNA helicase breaks the Hydrogen bonds keeping the two strands together and unwinds the helix so that the two strands are exposed for replication to be initiated.

2 . the nitrogenous bases pull apart from each other at a distance, exposing the two strands
The two strands pull apart from each other so that the strands are exposed for them to be used as templates in synthesising the new strands 

3. as the double helix continues to open, new nitrogenous bases are added on both sides
nucleotides consist of nitrogenous bases, phosphate group and pentose sugar. the uniqueness of DNA strands are in the sequence of nucleotides. the bases added to the new strand are complementary bases to that already in the template strand

Final answer:

The steps involved in DNA replication include the unwinding of the DNA helix, separation of base pairs by DNA Helicase at the replication fork, and the addition of new nitrogenous bases to form complementary strands.

Explanation:

The process of DNA replication is essential for cell division and involves several key steps:

Replication begins when the DNA helix unwinds at the origin of replication.The enzyme DNA Helicase breaks the hydrogen bonds between the nitrogenous base pairs which form at a replication fork, exposing the two single strands.As the double helix continues to open, single-strand binding proteins coat the DNA to prevent rewinding. New nitrogenous bases are added to the exposed strands by the enzyme DNA polymerase, according to the base pairing rules (A with T, and G with C).

A location in the northern hemisphere is currently experiencing the longest day. It is a day with more hours of sunlight than darkness. Which of the following could be the current month?

April
December
June
May

Answers

A location in the northern hemisphere is currently experiencing the longest day. It is a day with more hours of sunlight than darkness.

Which of the following could be the current month?

JUNE

Answer:

June has the longest day in northern hemisphere.

Explanation:

As Earth rotates on its axis which is tilted by 22.44° on its axis due to which the northern hemisphere receives more direct sunlight between March and September due to which northern hemisphere experiences longer days i.e more hours of sunlight. On 21 June the duration of the hours of sunlight received by the northern hemisphere is maximum. This is also known as Summer solstice .

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why do phospholipids form a bilayer in water?

Answers

When phospholipids are mixed with water, they spontaneously rearrange themselves to form the lowest free-energy configuration. This means that the hydrophobic regions find ways to remove themselves from water, while the hydrophilic regions interact with water. The resulting structure is called a lipid bilayer.

Answer:

Phospholipids form a bilayer in water because lipid consists of hydrophillic and hydrophobic regions.

Explanation:

Lipid is known as amphipathic molecule because lipids has hydrophillic head and hydrophobic tail regions. The lipid molecules can rearrange themselves when they are dissolved in water.

Lipids when dissolve in water, the hydrophillic (water- loving) head interact with water whereas hydrophobic( water- hating) moves away from the water. This, makes the bilayer in water.

what does a plant do with oxygen, the end result of photsynthesis

A. Sends it into the dirt
B. Breathes it into its lungs
C. Releases it that Animals(including humans) can live
D. Turn it into sunlight

Answers

it turns it into aniamlsa and oxygen it is c
The correct answer is, C. Releases it that Animals (including humans) can live.

What is a light year?
a. A measure of time in space
b.The distance light travels in a year
c.The distance to Alpha Centauri
d.A term used only in science fiction

Answers

The term light year refers to the distance light travels in a year. 
a unit of astronomical distance equivalent to the distance that light travels in one year,

Some common environmental factors influencing pregnancy include all of the following EXCEPT:

Answers

Air freshener doesn't affect pregnancy at all, as it only affects the particles in the air and pregnancy is internal.

Answer:

B

Explanation:

spores of the first known terrestrial plants have been found in what strata

Answers

The answer to this question is the Silurian strata. These are spores of the Psilophytes which appeared at the end of the Silurian period. The spores have been found in early Silurian rocks in Libya. Psilophytes did not have roots or leaves, but has branches carrying spore sacs that grew from an underground vine.

Which of the following steps is not likely to take place during cellular respiration?

Answer choices
A. Oxygen combines with carbon of simple sugar
B. Energy molecule transfers energy to cells
C. Simple sugar breakdown
D.Energy is used up

Answers

d energy is being used up 
xoxo nikole

Hey there!

Your answer is option D.
Energy being used up is NOT very likely to take place during cellular respiration.
But oxygen combining with carbon sugar, Energy molecule transferring to molecule cells, and simple sugar breaking down is likely to take place during cellular respiration.

Final answer:
Option D.

Hope this helps you.
Have a great day!

In a reflex arc, a motor neuron sends a signal that causes a response in the

Answers

I think it might be nerves, I hope this helps.

Orographic lifting is associated with _____.

Answers

Orographic lifting is associated with the mountains because it serves as blocks to the current of air, pushing the air to ascend.

Orographic lift happens when an air core is driven from a low elevation to a higher elevation as it passes over growing terrain. As the air mass gains height when it quickly freezes down adiabatically, which can increase the comparative humidity to 100% and produce clouds and, under the right circumstances, precipitation.

Orographic lifting is associated with topographic barrier such as a mountain or a hill.

A topographic barrier refers to a physical feature in the landscape that obstructs the flow of air or water. It can be a natural element such as a mountain, hill, ridge, or plateau. Topographic barriers have an impact on weather patterns and the movement of air masses.

As air approaches a mountain or elevated terrain, it is forced to ascend along the slope. As the air rises, it cools, leading to condensation and the formation of clouds. Orographic lifting can result in the development of orographic clouds, precipitation, and other weather phenomena on the windward side of the mountain. On the leeward side, the air descends and can create a rain shadow effect, where drier conditions prevail due to the loss of moisture during the ascent. Orographic lifting plays a significant role in shaping local weather patterns and can result in variations in precipitation and climate across different sides of a mountain range.

Therefore, the given blank is filled by mountain or hill.

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