What best describes the role of molecular oxygen (O2) in aerobic respiration?

A. It accepts electrons when reacting to form water.
B. It combines with carbon and hydrogen to form glucose.
C. It is released when glucose breaks apart.
D. It reacts to form carbon dioxide and water.

Answers

Answer 1
B
Expiation

Sorry if it’s wrong
Answer 2

Aerobic respiration involves the reaction of oxidation which involves the acceptance of electrons when the molecular oxygen reacts with protons to form water molecules. Thus, the correct option is A.

What is Aerobic respiration?

Aerobic respiration is the chemical process in which molecular oxygen is used to make the energy in the form of ATP from carbohydrates. It is also called as aerobic metabolism, and oxidative metabolism.

Aerobic organisms can use molecular oxygen (O₂) to generate energy in the form of adenine triphosphate (ATP). The role of molecular oxygen in the process of cellular respiration is to act as the end acceptor of electron. As the electrons are dropped off at the inner mitochondrial membrane during the process of cellular respiration, they travel through the electron transport chain and  are finally accepted by the molecular oxygen to form water.

Therefore, the correct option is A.

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Related Questions

cholesterol is synthesized by all animal cells and is an essential structural component of animal cell's membrane cholesterol is the most common steroid and mainly synthesized in the liver cholesterol also serves as a processor for several important biological compounds including all except insulin ,vitamin D, bile salts , testosterone.​

Answers

Answer:

Aug 11, 2017 — Vitamin D3 is produced in the skin from 7-dehydrocholesterol by UV irradiation, 1,25(OH)2D reduces 1,25(OH)2D levels in cells primarily by  Animals null for calbindin 9k (the major calbindin in mammalian abnormal vitamin D and/or calcium metabolism in some but not all of these patients (24-26). Cholesterol, a waxy substance that is present in blood plasma and in all animal tissues.  it is a primary component of the membrane that surrounds each cell, and it is  synthesizes bile acids, steroid hormones, and vitamin D. Cholesterol  are essential energy sources and structural components of all life

The connective tissue covering most of the outside of a bone is called:
A.
Cartilage
B.
Periosteum
C.
Bone marrow
D.
Epiphysis

Answers

The answer is B. Periosteum

Answer:

boplkuuhhftcctfckkf yyyyyyyyyyyyy                 it is b

Explanation:

where do veins always go

Answers

Answer:

Capillaries connect the arteries to veins. The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart.

Explanation:

like in your body? can you be more descriptive? like, veins go to your heart? but I need more description?

Which cellular waste product do the kidneys remove from the blood? oxygen carbon dioxide urea undigested food materials

Answers

Answer:

Urea.

Explanation:

Answer:

Urea, I studied

Explanation:

Do we use all brains all the time? If so why?

Answers

Answer:

Yes because we use our brain to write, read, draw, drive a car, or pretty much anything we do. Even sleeping our brain is working. But at a slower pace. The brain never stops working.

Explanation:

yes of course . All the time everyday every second . Our brains help us make decisions and we makes decisions every minute ! Hope this helps . There is sooo many reasons !

Common covalent bonds include


 MgO
 KF
 CH4

Answers

Answer:

CH₄

Explanation:

The four C-H bonds are covalent;

The C atom shares electrons with each of the four H atoms.

Which of the following structures is not part of a nucleotide of DNA? *

Deoxyribose sugar

Nitrogenous base

Ribose sugar

Phosphate group.​

Answers

Answer:

I believe it phosphate group

Explanation:

Carrie conducted an experiment to see if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. She had 10 volunteers. Each of the first 5 volunteers listened to seven different music selections for 30 seconds each. The person’s pulse was taken before the music and after each 30-second interval of music was completed. The other 5 volunteers did not listen to music and had their pulse taken every 30 seconds for 5 minutes. Based on her experiment, Carrie concluded that a person’s pulse rate did change when the person listened to different types of music. Identify the control group, the experimental group, the independent variable, and the dependent variable.

Answers

Answer:

Independent variable: MUSIC

Dependent variable: PULSE

Control group: The 5 volunteers that did not listen to music.

Experimental group: The 5 volunteers that listened to seven different music selections for 30 seconds each

Explanation:

- Independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response. In this experiment, the independent variable is DIFFERENT TYPES OF MUSIC THAT WAS PLAYED BY CARIE.

- Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable being measured in an experiment. The PULSE, which was measured in this experiment, is the DEPENDENT VARIABLE.

- Control group is the group of an experiment that does not receive the experimental treatment. In this experiment, the GROUP OF 5 VOLUNTEERS THAT DID NOT LISTEN TO ANY MUSIC is the CONTROL GROUP.

- Experimental group is the group that is subjected to the experimental treatment in an experiment. In this experiment, the GROUP OF 5 VOLUNTEERS THAT LISTENED TO SEVEN DIFFERENT TYPES OF MUSIC IS THE EXPERIMENTAL GROUP.

why does paper bread tableyellow?

Answers

Answer:

yes

Explanation:

i did this and got it right.

what supports and protects the chest cavity?

Answers

Answer: The bones of the chest — namely the rib cage and spine — protect vital organs from injury, and also provide structural support for the body.

Explanation:

Describe the polar regions. Help please!

Answers

Answer:

Polar region, area around the North Pole or the South Pole.The northern polar region consists mainly of floating and pack ice, 7–10 feet (2–3 m) thick, floating on the Arctic Ocean and surrounded by land masses.

Climate - long cold winters, with annual temperatures mostly below freezing.

Soil - the soil is covered in ice throughout the year.

Plants - hundreds of species of moss, algae and lichen survive the harsh conditions of the Polar biome.

Help please ASAP thanks

Answers

Answer:

B the fluids

Explanation:

will mark brainliest

Answers

hahah you don't know this? can't imagine being that dumb must suck.

Write the complimentary base pairs for the following DNA strands:

Original: ATC GCC CAT GTG CCA
Comp:

Original: TGA CAA CGA GGT ACT
Comp:

Original: AAA CCC TTT GGG ACG
Comp:

Answers

1. Comp: TAG CGG GTA CAC GGT
2. Comp: ACT GTT GCT CCA TGA
3. Comp: TTT GGG AAA CCC TGC

Which of the following scenarios does NOT illustrate a danger bats can pose to miners?

A. Bats can swarm, causing miners to fall off equipment.

B. Bats can release feces that have mold spores, causing miners to contract respiratory diseases.

C. Bats can attack, causing miners to contract rabies.

D. Bats can communicate by echolocation, causing miners to lose their hearing.

Answers

Answer:

C. Bats can attack, causing miners to contract rabies.

Explanation:

Scenarios that does not illustrate a danger bats can pose to miners is bats can attack, causing miners to contract rabies.Thus, option C is correct.

What is food web?

Food web has been defined as the natural way of the interconnection of the food chain that has been represented by the help of graphs and it has been shown that in the ecological community who eats whom. The food web has been also known as the consumer consuming system. The main advantage of the food web has the organism present on the top or the organisms who belongs to the higher trophic level can provided food or feed the organisms from lower trophic level or from other food chain.

The permanent food web has been increased due to the presence of large or complex food web. There are mainly three steps in the food web or food chain and they are producers, consumers, as well as  decomposer. The producer belongs to the trophic level, the consumers belongs to the second and third trophic level, and the decomposers belongs to fourth and fifth trophic level.

Since there are more number of  species they have more oppurtunity on which ones to eat  because food webs with many species (biodiverse) are more stronger than those with few species.

Therefore, Scenarios that does not illustrate a danger bats can pose to miners is bats can attack, causing miners to contract rabies.Thus, option C is correct.

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what is fart? explain and what do you call it?

Answers

Answer:

Farts — also called flatus (say: FLAY-tuss) or intestinal (say: in-TESS-tuh-null) gas — are made of, well, gas! When you eat, you don't swallow just your food. All of these gases in the digestive system have to escape somehow, so they come out as farts! Gases are also what can make farts smell bad.

why is blood pressure an example of negative feedback?

Answers

Answer:

Regulation of blood pressure is an example of negative feedback. ... If blood pressure is too high, the heart rate decreases as the blood vessels increase in diameter ( vasodilation ), while the kidneys retain less water. These changes would cause the blood pressure to return to its normal range.

Explanation:

The diagram below illustrates the movement of glucose across a cell membrane. Which two processes are most directly represented in this diagram?

Answers

Answer: molecule transport and energy use

Explanation: I got the answer from castle learning

What happens when the nucleotides in a DNA synthesis reaction are radioactive?

Answers

If a cell is grown in a medium containing radioactively labeled thymidine--which is one of the nucleotides needed to synthesize DNA--after the first round of replication, all of the DNA molecules will have one labeled strand and one unlabeled strand. Why? Because the radioactively labeled thymidine will be incorporated into the newly synthesized strands. If the cell undergoes ANOTHER round of replication in the same medium, the same sequence of events will occur.

if an atom contains 5 protons, 4 neutrons, and 3 electrons. its atomic mass is​

Answers

add the protons and neutrons to find atomic mass 5+4=9. the atomic mass is 9

Answer: 9

Explanation:

atomic mass= protons + neutrons

5+4 =9

What two electron carrying particles ("batteries!") does the electron transport chain use to get the energy it needs to
make ATP?

Answers

Answer:

The electron transport chain can convert the energy from one glucose molecule's worth of FADH2 and NADH + H+ into as many as 34 ATP.

Explanation:

Answer:

The electron transport chain can convert the energy from one glucose molecule's worth of FADH2 and NADH + H+ into as many as 34 ATP

Explanation:

The process of forming ATP from the electron transport chain is known as oxidative phosphorylation. Electrons carried by NADH + H+ and FADH2 are transferred to oxygen via a series of electron carriers, and ATPs are formed. Three ATPs are formed from each NADH + H+, and two ATPs are formed for each FADH2 in eukaryotes.

Using the diagram below, how many electrons will Be have if it is a neutral atom?

Answers

the answer is six electrons

What is the driving force for plate tectonics?


A.Gravity slab pull
B.The gravity of the Moon and Sun
C.Heat from the Earth's core causing mantle convection

Answers

Answer:

Option C

Explanation:

Driving force for plate tectonics is the "convection in the Earths mantle" or option C. Convection is the transfer of heat due to the movement in molecules also causing hot to rise and cold to sink. Convection currents cause the tectonic plates to move because the currents rise to the Earths surface forcing the plates to drive away from each other also known as seafloor spreading.

Hope this helps

What property of water allows the
oceans’ water to store carbon dioxide?

Answers

Answer:

The difference in pCO 2 is related to the amount of carbon that is converted from CO 2 gas to other nongaseous carbon species in the sea water, like bicarbonate and carbonate ions. This so-called "buffer capacity" is what allows the oceans to hold so much carbon.

Explanation:

Rotenone, a piscicide (fish poison), interferes with the transfer of electrons between Complex I and Complex II in the process shown above. Which of the following results would be expected in the mitochondria of fish exposed to Rotenone? Why?

Answers

Answer:

Mitochondria stops working.

Explanation:

When the mitochondria of fish exposed to Rotenone, it inhibits the cellular respiration which is the main cause of death of fishes. This inhibiting of cellular respiration in mitochondria leads to reduction in cellular uptake of oxygen and this reduction is responsible for the death of fishes. This Rotenone releases by the plants present in the water as well as used as pesticides for killing of fishes.

PLEASE HELP ‼️

How do organisms survive if the cells they are made of continually die?​

Answers

Answer:

nope.................................

every cell in your body is over 3 billion years old.

The strategy that multicellular organisms such as humans use to project themselves into the future is to create new cell colonies from a single undifferentiated cell rather than maintaining existing colonies indefinitely. The main reason is that reproduction is more flexible and robust than maintenance, and it provides a way of starting over with a “clean slate” and slightly different genes. Complex organisms accumulate billions of errors and problems over their lifetime. So basically organisms survive because new cells are made everytime a cell dies.

Some one please help me with this
What is relative humidity

Answers

Answer:

Explanation:

The ratio of the actual amount of water vapor present in a volume of air at a given temperature to the maximum amount that the air could hold at that temperature, expressed as a percentage.

Plants such as the Venus Flytrap and the Sun Dew attract and consume insects. These plants are unable to produce substances which break down the insect into compounds that are usable by the plant. The chemical compound that breaks down the insects is most likely * O ATP O Lipids O Enzymes O Vitamins​

Answers

Answer:

The chemical compound that breaks down the insects is most likely enzymes.

Explanation:

Venus flytraps and sundews are carnivorous- they consume insects to absorb nutrients via digestion. During absorption,  their cells take up molecules synthesized via the breakdown of macromolecules like carbohydrates and proteins. When regions of the plant come into contact with insects, these plants recognize specific macromolecules like chitin, they increase the production of digestive enzymes.

Forming digestive liquid enzymes are specialized proteins that function as biological catalysts to speed up reactions. They act on substrates, which can bind to specific regions of the enzyme, called the active site. Once bound in the presence of highly specific temperature and pH, enzymes increase the rate of a reaction over time.

Common enzymes found in their digestive secretions include chitinases, phosphatases, amylases, and proteinases.

A defensive soccer player is having trouble reacting quickly to the movements of the opposing player. How can the soccer player adjust her base of support to improve her reaction time?

Answers

Answer:

decrease the base of support and centralize her line of gravity

Explanation:

A wider base of support leads to an unsteady gait. The base of support is the contact between the feet of the soccer player and the surface (the field) supporting him. The root cause of the player's inability to react quickly to the movements of the opposing player is a lack of balance.

Balance is the ability of an individual to sustain the line of gravity which runs the center of gravity. For the player to regain his balance, she needs to decrease the base of support and centralize her line of gravity, so as to maintain balance.

What class is the sting ray in?

Answers

Answer:

Cartilaginous fishes

Explanation:

Answer:

math lol what he said so yah

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