explain how redox reactions are involved in energy exchanges

Answers

Answer 1

Answer:

In redox reactions, energy is released when an electron loses potential energy as a result of the transfer. Electrons have more potential energy when they are associated with less electronegative atoms (such as C or H), and less potential energy when they are associated with a more electronegative atom (such as O).


Related Questions

The first reaction of the body to a cut is to restore the continuity ?

Answers

Explanation:

First,blood cells called platelets join together at the paper cut and form a clot to stop the bleeding.The platelets then release chemicals called Cytokines into your blood stream.Cytokines attract the attention of certain cells to start healing your cut.

When the skin injured,our body sets into motion an automatic series of events,often reffered to as the " cascade of healing",in order to repair the injured tissues.The cascade of healing is divided into four overlapping phases:Hemostasis,Inflammatory,Poliferative,and Maturation.

That's the answer Hope it helps

Which of the following steps occurs in the light-dependent reactions of photosynthesis but not in the light-independent reactions?
Choose 1 answer:


(Choice A)

Chemical reactions produce glucose, ADP, and NADP^+


(Choice B)

Chlorophylls absorb light energy, which eventually breaks the bonds of water molecules.

(Choice C)

ATP and NADPH are used for carbon fixation.

Answers

Answer:

I think it is Chemical reactions produce glucose, ADP and NADPH

Explanation:

Photosynthesis is a chemical reaction that takes place to convert light energy. The photosynthetic light-dependent reaction forms glucose, ATP, and NADP⁺. Thus, option A is correct.

What is a light-dependent reaction?

A light-dependent reaction is a photosynthetic reaction that occurs in the presence of sunlight and produces chemical energy in the form of NADPH and ATP.

The products of the photosynthetic light-dependent reaction are used in light-independent reactions. In light-dependent, the photosystem gets excited and produces ATP from ETC, leading to reduction of NADP⁺ and photolysis of the water molecule.

Therefore, ADP and NADP+ are produced at the intermediary stage of the light-dependent reaction which makes them different from the light-independent reaction.

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which statement correctly compares a function of lipids to a function of proteins in the body?

Answers

The main role of nucleic acids is to store information that is used to make proteins. Nucleic acids come in two main forms: deoxyribonucleic acids, also known as DNA, and ribonucleic acids, also known as RNA. The main function of DNA is to store the genetic information that cells in the body need to function

where does the light independent reaction take place

Answers

Answer:

stroma

Explanation:

The light-independent reactions represent the known Calvin–Benson–Bassham (CBB) cycle which takes place in the stroma of chloroplasts and is the primary pathway of carbon fixation of C3 plants [119].

STUDY TIP 1

Don't do all your studying the night before. Instead spread it out, review class materials several times a week, and focus on one topic at a time.​

FOLLOW FOR MORE

Answers

Answer:

That's cool, I think I'll try!

Explanation:

What questions you would like to ask your teacher to know about the role of vaccine in prevention of harmful diseases ​

Answers

Answer:

Some questions that can be asked:

1) How does the vaccine work and prevent diseases?

2) Can some people become allergic or have a negative response to vaccines, and How does this work?

3) What causes some vaccines to not work 100% effectively?

4) How do people create vaccines?

I'm not sure if this is what you were asking for, hopefully, this helps.

what veins return deoxygenated blood from the head and neck to the heart

Answers

The Venae Cavae

These veins return deoxygenated blood from the body into the heart, emptying it into the right atrium.

most genetic diseases tend to be recessive. why is that?

Answers

if the disease was cause by the dominant allele, every person with said gene would be affected with the disease. if the genetic allele is recessive, both parents can be carriers (hetero) without being affected. that makes it easier for the genes to keep being passed on.

hope this helps!

how do false killer whales help mankind and nature!!!!!???????

NEED TO KNOW VERY SOON PLESE ANSWER SOON AND FAST

Answers

Whales play an important role in the marine ecosystem where they help provide at least half of the oxygen you breathe, and they also improve climate change. Hope that helps.

mitosis is the only type of cellular division in which:

Answers

Answer:

itosis is a process where a single cell divides into two identical daughter cells.

Explanation:

Mitosis is the only type of cellular division in which number of chromosomes is maintained

What is mitosis?

During the phase of the cell cycle known as mitosis, duplicated chromosomes are physically split in half to form two new nuclei. Mitosis is a method of cell division that results in the production of cells that are genetically similar and in which the total number of chromosomes is preserved. Since this occurs during mitosis, the process is often referred to as equational division.

Mitosis serves a very vital purpose in living creatures, and one of its functions is the regeneration and replacement of worn-out and damaged tissues. Mitosis contributes to the generation of identical copies of cells and, as a result, assists in the process of healing damaged tissue or replacing cells that have been worn out.

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What is 0.0000914 in scientific notation?
a b c or d

Answers

Answer:

The Answer is A

Explanation:

HEELLPPPP
All of the following are ways that carbon dioxide can be transported in the blood except for
B. dissolved in the plasma

C. as a molecule of ferretin

A. carbaminohemoglobin

D. bicarbonate ions

Answers

Answer:

C. as a molecule of ferretin

Explanation:

Question why won't answers open up where is the log in page

Answers

Answer:

Hmm I'm not sure I joined only a few days ago.

Explanation:

cyber ethics and law are same in nature true or false​

Answers

Answer:

True as a technonerd it is ive study it

Explanation:

Which statement describes an important role of carbon dioxide in Earth's atmosphere?
Animals breathe carbon dioxide.
O Plants use carbon dioxide to make food.
O Carbon dioxido helps animals make proteins.
Carbon dioxide forms clouds that produce rain

Answers

Answer:Plants use carbon dioxide to make food

Explanation: Carbon-dioxide plays a very important role in sustaining life on Earth.

Plants use carbon-dioxide and water for photosynthesis in presence of sunlight and chlorophyll to produce food and oxygen.

CO₂ + H₂O →  O₂ + glucose (food)

This food is consumed by the animals and oxygen is used for respiration. Animals use energy from the food to do work and exhale back carbon-dioxide.

Explain how homologous structures are used as a source of evidence to infer evolutionary relationships between modern and fossil organisms

Answers

Answer:

Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.

Explanation:

Analogous structures demonstrate that identical selective pressures might result in similar adaptations, whereas homologous structures indicate evidence for shared ancestry.

What are analogous structures?

In contrast to homologous structures, analogous structures are characteristics of different species that have evolved in response to a similar environmental challenge and are similar in function but not necessarily in structure.

While comparable structures demonstrate that similar selective pressures can result in similar adaptations, homologous structures suggest that they have a common ancestor (beneficial features).

Therefore, homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.

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This food web illustrates some characteristics that ANIMALS have in common. Find all the animals. What do they all
have in common?
A)
They are all predators.
B)
They must consume their food.
C)
They all have a skeletal system
D)
They all recycle matter in the food web.

Answers

Answer:

B) They must consume their food.

Explanation:

I just did the test

what would do the most to reduce indoor air pollution in the developing world?

Answers

Answer:What would do the most to reduce indoor air pollution in the developing world? Using solar energy to cook and heat homes. Millions of people in the developing

Explanation:

your welcome

Looking at the age structure provided. What is the best population control strategy option to deal with this situation?

Answers

Answer:

Empower women. Studies show that women with access to reproductive health services find it easier to break out of poverty, while those who work are more likely to use birth control. Promote family planning. Make education entertaining. Government incentives. One-child legislation.

Explanation:

Which substance cannot be broken down into simpler substances?

Answers

Answer:

A Elements

Explanation:

Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means.

Which mechanism allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries

Answers

Answer:

Diffusion.

Explanation:

The mechanism that allows lipid-soluble substances to move through the membranes of endothelial cells of capillaries is simple diffusion.

Simple diffusion is a passive transport mechanism that allows lipid-soluble substances to move across the membranes of endothelial cells in capillaries. This process occurs down a concentration gradient, from an area of higher concentration to an area of lower concentration, without the need for energy expenditure.

The membranes of endothelial cells, which make up the walls of capillaries, are composed of a lipid bilayer. Lipid-soluble substances, such as oxygen, carbon dioxide, steroid hormones, and certain lipid-soluble drugs, can readily diffuse through this lipid bilayer due to their ability to dissolve in and pass through the hydrophobic interior of the membrane.

Unlike lipid-soluble substances, water-soluble substances, such as ions and polar molecules, are unable to passively diffuse through the lipid bilayer. Instead, they rely on specific transport mechanisms such as facilitated diffusion or active transport to cross the endothelial cell membrane.

In the context of capillaries, simple diffusion allows lipid-soluble substances to move from the bloodstream through the endothelial cell membranes and into surrounding tissues or vice versa. This process plays a crucial role in the exchange of gases, nutrients, and waste products between the bloodstream and the tissues.

It is important to note that while simple diffusion allows for the passage of lipid-soluble substances, the movement of these substances can also be influenced by factors such as concentration gradients, molecular size, solubility, and the presence of transport proteins. However, the primary mechanism by which lipid-soluble substances traverse the endothelial cell membranes of capillaries is through simple diffusion.

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the external urethral sphincter is under ___________ control.

Answers

Answer:

Skeletal muscular,it is under valuntary control of the somatic nervous system

If the economy is too big, does it have a negative or positve effect on the environment?

Answers

Economic growth means an increase in real output (real GDP). ... The environmental impact of economic growth includes the increased consumption of non-renewable resources, higher levels of pollution, global warming and the potential loss of environmental habitats.

what is the cell wall function and factory part or worker?

Answers

Answer:

Major cell parts function just like the structures and people who work together in a factory. Cells have strong cell walls and a cytoskeleton to keep their shape; the walls are made of fiber for protection just like a factory building has sturdy walls for support.

The cell wall serves as a protective and structural layer surrounding plant, fungal, and bacterial cells. It provides rigidity, support, and defense against external pressures and pathogens.

In various species, the cell wall serves as a robust outer layer. Its primary component in plants is cellulose, which helps to preserve cell structure, limit excessive water absorption, and promote growth. Chitin is found in the cell wall of fungi, providing both structural integrity and protection.

Bacteria have a variety of cell wall compositions; peptidoglycan, for example, is an essential part of many bacterial cell walls. Along with other cellular components, this "factory-like" part of the cell performs its functions. It is comparable to a factory's base, supporting the cell's framework, and worker, guarding against threats and preserving the cell's overall operation.

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Which is NOT true about pedigrees?

a. They show only recessive disorders.

b. They can be used to predict disorders in a family.

c. They indicate the sex of an individual.

d. They are useful in inferring genotypes of individuals.
****GIving Brainlist****

Answers

Answer:

i think its this one c. They indicate the sex of an individual.

Which of these changes is a possible negative consequence of farmers
allowing livestock to overgraze a pasture?
O A. Desertification
O B. Shortage of freshwater
O c. Deforestation
O D. Abundance of clean air

Answers

Given what we know, one of the possible negative consequences of farmers  allowing livestock to overgraze a pasture is desertification.

What is Desertification?In simple terms, desertification is when the land becomes so dry and void of life that it can be considered a desert. This can be caused by many factors, primarily the lack of vegetation.

How can overgrazing lead to Desertification?Overgrazing can lead to desertification due to the fact that the plants and vegetation are not given the opportunity to regrow.The presence of vegetation allows the soil to remain moist and fertile by moving minerals and water through it. Overgrazing causes a lack of vegetation which creates dry and infertile land, which leads to complete desertification.

Therefore, we can confirm that one of the possible negative consequences of farmers  allowing livestock to overgraze a pasture is desertification due to the damage caused to the soil in the absence of vegetation.

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Plants using the CAM pathway occur in many locations but are most common in very arid locations, such as deserts. What deserts occur in North America and where are these deserts located?

Answers

The desert that occurs in North America is the Great Basin Desert and it is located at Nevada of North America.

CAM pathway, which is also called Crassulacean Acid Metabolism, is a pathway that involves carbon fixation that occurs in plants growing in arid areas.

With this pathway these plants are able to photosynthesize during the day, but only exchange gases at night.

An arid habitat is an environment that is characterized by extreme lack of water, example is the desert.

In North America, the desert that occurs there is the Great Basin Desert. It spreads into different states which include:

NevadaWestern Utah, Eastern California, andIdaho.

But the major part of Nevada is occupied by the Great Basin Desert.

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Microevolution occurs when what kind of frequencies change?

Answers

Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift.

what is the relationship between the photosystems and the calvin cycle

Answers

What is the relationship between the photosystems and the Calvin cycle? The photosystems transfer energy to the Calvin cycle through ATP and NADPH.

I hop this helps! :)

Under which conditions would air hold less water vapor than it holds at 30°C
(86°F) with sunny skies?
A. 34°C (94°F) with cloudy skies
B. 30°C (86°F) with cloudy skies
C. 22°C (86°F) with sunny skies
D. 32°C (90°F) with sunny skies

Answers

Answer:

B

Explanation:

jus CS its right

The relative humidity of the air affects how much water vapor it can hold. 30°C (86°F) with cloudy skies would air hold less water vapor than it holds at 30°C (86°F) with sunny skies. So, the correct option is B.

What is Relative humidity?

Relative humidity (RH) measures the amount of moisture in the air compared to the maximum amount of moisture in the air at a given temperature and pressure. It is a standard figure for describing the moisture content of the air and is expressed as a percentage.

At a given temperature and pressure, air is considered to have 100% relative humidity when it contains all the moisture it can hold. The temperature at which the moisture in the air begins to condense into droplets is known as the dew point.

Therefore, the correct option is B.

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what is HYPERglycemia and HYPOglycemia? include: what is it, symptoms, signs, treatment. please and thank u! Chau needs to buy plastic forks. Brand A has a box of 12 forks for $1.12. Brand B has a box of 25 forks for $2.69. Find the unit price for each brand. Then state which brand is the better buy based on the unit price. Round your answers to the nearest cent.PLEASE HELP!!!!ASAP! 3.She displayed some of her paintings at the local __________ A. commune B. post office C. demonstration D. exhibition. 14. Id like to introduce you to Mrs. Thuy, __________ is the teacher of this special class. A. that B. which C. who D. whom15. My father didnt __________coffee for breakfast. A. used to have B. use to have C. use to having D. use be having 16. How often__________your car serviced since you bought it? A. do you get B. did you get C. had you gotten D. have you gotten17. The program must be new. I__________it before. A. have never been seen B. have ever seen C. have never seen D. have seen18. 'We __________ a party on Sunday, 12th November. Can you come?' `Yes, I'd love to.' A. are having B. are going to have C. will have D. having19. 'Good luck. When will you be here?' `Tomorrow. My plane __________ at 7:00, so I__________ you about 8:00.' A. will land/ see B. lands/ will see C. is landing/ am going to see D. land/to see20. Look at those cars! They__________! A. will crash B. are crashing C. will be crashed D. are going to crash Complete the proof(using sas congruence)! Use to sas congruence to prove that two angles are congruent Activity 1: Interview and older member of your family parents, uncles, aunts, cousins or grandparents). Ask him/her of a particular important decision that he/she has made using any 9/ e itorial fact ot 1/ e det'elopment of a person : ! oct that r/he aus on trong en r dercision Write ory ot pt n 'ic organi 7. Name or the person intermed Don ma Internal factor and how arluenced the decision CL/E Outcome of the decision Lesson garned from the interview Question 16 of 20Which statement best explains why visual aids and other media contribute toan effective speech?A. They can make a speech seem more professional.B. They help the speaker feel less nervous.C. They help the speaker establish a formal tone.O D. They can make complex ideas easier to understand.SUBMIT ok here PLEASE HELP ME !!!!! Read Shelly v Kraeme, Moose Lodge v. Irvis and Georgia v. Mccollum.Which case is most compelling? Find BC. ==AD = 10.5AB = 2 = 11.5AE = 15BC = [?]= Which statement is necessarily true if is an altitude to the hypotenuse of right ? A lead ball is dropped into a lake. The ball beginsto sink to the bottom of the lake. What force is causingthe ball to sink?A. BuoyancyB. Gravity C. LiftD. Thrust Boris made $306 for 18 hours of work. At the same rate, how many hours would he have to work to make $119? PLEASE I NEED HELP, ILL MARK AS BRAINLIEST!!Raul is filling a 55 gallon fish tank with water. There are 18.5 gallons of water in the take 2.5 gallons of water flows from the hose each minute how many gallons of water are in the fish tank after 12 minutes The area of a rhombus is 40 sq cm and one of its diagonals is 8 cm long. Find the length of the other diagonal. An airplane accelerates from rest down a runway at 9.50 m/s2 for 29.3 seconds when ittakes off. What is the distance traveled while taking off? I have three bits of tinsel measuring the following: 2.3m, 45cm and 750mm. How long is my tinsel altogether in metres? Why were literacy tests an effective way to prevent African Americans from voting? They had to pay a tax in order to vote.They weren't allowed to use the grandfather clause.Most of them still spoke a language other than English.Most of them weren't able to read and write. When a 1 is on the input of an inverter, what is the output? ABC is a triangle. AC=19cm, BC=17cm and angle BAC=60 Which of the following explains the function of the urinary system? A:extracting poison from the body B:taking water out of your body C:extracting diseases from the body D:keeping the body hydrated