The native structure of hemoglobin (hb) comprises of two α and two β subunits, each of which carries a heme group. there appear to be no previous studies that report the in-vitro folding and assembly of hb from highly unfolded α and β globin in a 'one-pot' reaction. one difficulty that has to be overcome for studies of this kind is the tendency of hb to aggregate during refolding. this work demonstrates that denaturation of hb in 40% acetonitrile at ph 10.0 is reversible." (j am soc mass spectrum 2007, 18, 8-16) how many heme groups are present in three hemoglobin protein molecules?

Answers

Answer 1
If each subunit of a hemoglobin protein molecule carries a heme group and a hemoglobin protein molecule is made of four subunits, two α and two β, we can simply multiply four (number of heme groups that can be found in one hemoglobin protein molecule) by three (number of hemoglobin protein molecules considered). 4×3=12
There are twelve heme groups in three hemoglobin protein molecules.
Answer 2

There are twelve heme groups in three hemoglobin protein molecules.

Further Explanation:

Hemoglobin molecules:  

Hemoglobin, additionally spelled hemoglobin, iron-containing protein in the blood of numerous creatures in the red platelets (erythrocytes) of vertebrates, that transports oxygen to the tissues. Every hemoglobin particle is comprised of four heme gatherings encompassing a globin gathering, framing a tetrahedral structure.  

Hemoglobin protein molecules:  

Hemoglobin is the protein that makes dark red. It is made out of four protein chains, two alpha chains and two beta chains, each with a ring-like heme gathering containing an iron particle. Oxygen ties reversibly to these iron iotas and is shipped through blood.  

Which protein is found in hemoglobin:  

The name hemoglobin is gotten from the words heme and globin, mirroring the way that every subunit of hemoglobin is a globular protein with an installed heme gathering. Every heme gathering contains one iron iota, that can tie one oxygen particle through particle initiated dipole powers.  

Ordinary hemoglobin types include:  

• Hemoglobin A (Hb A): makes up about 95%-98% of hemoglobin found in grown-ups; it contains two alpha (α) chains and two beta (β) protein chains.  

• Hemoglobin A2 (Hb A2 ): makes up about 2%-3% of hemoglobin found in grown-ups; it has two alpha (α) and two delta (δ) protein chains.

Subject: biology

Level: High School

Keywords: Hemoglobin molecules, Hemoglobin protein molecules, Which protein is found in hemoglobin, Ordinary hemoglobin types include.

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Related Questions

What factors influence naturally occurring fluctuations in the levels of dissolved oxygen?

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Hello,


Lack of concentration of the oxygen and also bubbles can dissolve oxygen. 

Which part of the neuron sends information to other cells?

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Dendrites serve as the input region of the neuron and receive information from other cells.

Angiosperms _____.

have flowers
have cones
are nonvascular
are seedless

Answers

 They have flowers!! I hope this helped

Answer: The correct answer for the blank is -

have flowers.

Angiosperms are also known as flowering plants. These plants bear fruit and possess seeds that are enclosed within ovary (unlike gymnosperms that have naked seeds).

Example of angiosperm- Roses, tomatoes.

Thus, Angiosperms have flowers is the right answer.

Select the proper cell parts listed below to fill in the blanks of the sentences that follow: 1. the is the semi-liquid portion of the cell in which the cell parts are located. 2. the is referred to as the headquarters of cell operation. 3. the structure found in a plant cell, but not in an animal cell, that carries out process of photosynthesis is the . 4. proteins are manufactured by the . 5. the structure that surrounds the cell and regulates what enters and leaves the cell is the . 6. nicknamed the "powerhouse of the cell", the are involved in energy production for the cell. 7. the surrounds the nucleus and controls what enters and leaves it. 8. in addition to a cell membrane, plant cells also have a that serves to provide strength and support to the cell. 9. are structures that contain digestive enzymes. 10. storage chambers within the cell are called . 11. found mostly in animal cells, the plays a role in cell division. 12. the cell structure that prepares and packages proteins either for use within the cell or for shipment out of the cell is the . 13. located within the nucleus, the is involved in making ribosomes for the cell. 14. among other tasks, the serves as a transportation system within the cell. 15. another name for the dna material located within the nucleus of the cell is .

Answers

cytosol is the cytoplasm of a cell

Exercise habits and sleep habits are examples of:

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Exercise and sleep habits are examples of BEHAVIORAL VARIABLE.
Behavioral variables are those behaviors which can be varied or changed at any point in time. They are the type of behavior which determines the quality of life that a man live.

Nearly ____ % of people with type 2 diabetes are overweight when diagnosed.

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That would be 90%. Having said, the other 10 percent could be on the edge of being overweight too.

Give three reasons why the polar ice caps do not support any vegetation

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Polar ice caps are the coldest place on the earth. The temperature here is very low, always below 0 degree Celsius on an average.
Polar ice caps has no vegetation because:
1. Ice is present on the ground permanently.
2. Water present in the soil remains frozen and thus, unavailable for plants to grow.
3. Cold weather that do not support vegetation.

The movement of water molecules through a semi-permeable membrane is called

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It’s called osmosis.

What would happen if the sun stopped producing energy?

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We would nearly immediately experience temperature loss and everything living on this earth other than chemical dependent bacteria would die.

Termites are unable to digest some plant materials (fiber). Termite stomachs contain bacteria that digest the fiber in wood. Which type of relationship does this describe? commensalism mutualism parasitism competition

Answers

This would be mutualism, since both organisms benefit from this relationship. (the termite is able to eat the plant material, the bacteria gets to digest the fiber)

Answer: Mutualism

Mutualism is a symbiotic relationship in which two or more than two living organisms live together and benefits each other in the best possible way.

In this scenario, termites provide shelter to the bacteria in their gut and in response bacteria produces enzymes in the gut that breakdown the food and helps in digestion.

The nurse inspects the thorax of a patient with advanced emphysema. what does the nurse expect the chest configuration to be for this patient?\

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it expects malfucntions

A pregnant woman recently diagnosed with the genital herpes virus asks the nurse for more information on the virus. which responses by the nurse would be appropriate? select all that apply.

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There are three responses by the nurse would be appropriate. They are listed below;
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I most biological systems, cells are ________ to their environment.

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important 
key
building blocks

At what molarity is the sucrose solution isotonic to the cells? (solve for x, when y = 0)

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The molarity is the sucrose solution isotonic to the cells and when we solve the x when the y is equal to zero, the molarity is 0.3123 M. The molarity or M is calculated by finding the molar mass of the solute and convert the grams into moles then divide the number of moles by the number of liters and this is what you get the final answer or the molarity.

Each segment of lung tissue is divided into a number of ____ wrapped in elastic connective tissue with a lymphatic, an arteriole, a venule, and bronchioles from a terminal bronchiole.​

Answers

Answer;

Lobules

Explanation;In respiratory system the lungs are two spongy, cone shaped organs in the thoracic cavity and are separated from each other by the heart and other structures found in the mediastinum.Deep grooves called fissures divide each lung into lobes. Each lobe receives its own secondary bronchus. Each lung lobe is divided into smaller segments that are supplied by a tertiary bronchus.The segments, in turn are subdivided into small compartments called lobules, which contains, lymphatic vessel, arteriole, venules and also a branch from terminal bronchiole wrapped in elastic connective tissue.

Each segment of lung tissue is divided into a number of bronchioles wrapped in elastic connective tissue.

Further Explanation:

The lower respiratory tract consists of lungs and tubes that control the air entering into the lungs. The tube that terminates into alveoli includes trachea, bronchi, bronchioles, and alveolar ducts. Lungs are present above the diaphragm and surrounded by the rib cage. They are a very crucial component of the respiratory system. The size of the lung is different; the left lung is less wide than the right one. Lung tissues are sub-divided into various numbers of bronchioles. The inner lining of bronchioles contains cilia and goblet cells that secrete mucus. The cilia help in the up and down movement of the mucus in the conducting airways. These cells are termed as mucociliary escalator and are responsible for preventing the entry of foreign particles and microorganisms into the lungs.

Learn More:

Learn more about the fibrous skeleton of the heart https://brainly.com/question/7301375 Learn more about blood cells bring oxygen and take carbon dioxide away https://brainly.com/question/1213217 Learn more about the system prepares food for absorption into the bloodstream https://brainly.com/question/310282

Answer Details:

Grade: High School

Subject: Health

Chapter: The respiratory system

Keywords:

Lower respiratory tract, remove, particle, responsible, mucociliary escalator, secrete, mucus, bronchioles, lung, tissue.

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Answers

That would be meiosis. 

The 2 major components of the cell membrane are ______ and _______

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the 2 major components of the cell membrane are lipids and protein

The two major components of the cell membrane are proteins and phospholipids.

What is a cell membrane?

The cell membrane is a biological membrane that distinguishes the interior of all cells from their surroundings and safeguards the cell.

It is mainly composed of proteins and phospholipids that constitute the structure of the cell membrane.

Thus, the major component of the cell membrane are proteins and phospholipids.

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Ant is eating mesquite tree and other insects what type of energy is this ant consuming

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This would be considered a chemical energy. Consuming food, which contains chemical energies, powers the body to be able to move, talk, proceed with other normal functions. As the foods are broken down inside the body, chemical reactions are formed, powering the ant.

The ________ is a procedure that is used to determine the number of each of the various types of white blood cells.

Answers

1. examining hematocrit 
2. looking at the reticulocyte count
3. seeing the total blood count
4. And seeing the mean corpuscular colume

This is how you find the amount of each white blood cell type.

A client has black, sticky, tarry, foul-smelling stools from digested dark blood. which term should the nurse use in report to describe this finding?

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The term the nurse should use to report and describe the findings in the patient is known as “Melena”. Melena is known to be the dark sticky feces containing a part of digested blood. Melena can be produced by swallowing blood or it may indicate that a person is bleeding internally. 

Human skin becomes dry during winter, making it more prone to infections than during summer. How do the sebaceous glands protect the skin normally?
A. Sebaceous glands produce a substance that moisturizes and protects the skin. B. Sebaceous glands cause the hair to stand erect, which insulates and protects the skin.
C. Sebaceous glands produce keratin, which gives the skin a tough structure and protection.
D. Sebaceous glands contain collagen fibers, which provide strength and protection.

Answers

The correct answer is A: Sebaceous glands produce a substance that moisturizes and protects the skin. This is the correct answer because the sebaceous glands produce a fatty substance called sebum. The sebum will moisturize the skin and form a protective layer from infections.

Sally was diagnosed with _____ diabetes, which places her pregnancy at a higher risk.

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The answer is pregestational diabetes-- this will likely be put her pregnancy at high risk because having this type of diabetes is likely to focus on the glycemic control in pregnancy of which should be maintained and controlled as if it is not, it could place her pregnancy into risk.

In castrated male rats, the medial preoptic area ____.​

Answers

In the case of castrated or neutered male rats, the medial preoptic area has as much dopamine as normal rats, but the presence of a receptive female does not evoke much release of dopamine. Dopamine helps male sexual behavior in many species and is released just before and/or during copulation in three neural systems. 

 

In castrated male rats, the medial preoptic area is essential for initiating sexual behavior, but not for sexual motivation. Damage to this area diminishes the rat's willingness to initiate sex, despite an unchanged motivation to seek sexual partners. This highlights distinct neural mechanisms for sexual behavior execution and motivation.

In castrated male rats, the medial preoptic area plays a key role in sexual behavior. This area, located in the anterior hypothalamus, is critical for initiating sex in males. If this area is damaged or lesioned, male rats exhibit a decrease in their inclination to initiate sex, even if they still seek out a sexual partner. However, the motivation to seek out a sexual partner does not seem to be diminished, suggesting that sexual motivation and the execution of sexual behavior are regulated by distinct neural mechanisms.

For comparison, in females, the ventromedial hypothalamus determines sexual receptivity, while the preoptic area is more involved with eating behaviors. The preoptic area in males corresponds to aggression-related areas, whereas in females, it overlaps with areas associated with nurturance.

Overall, the medial preoptic area is crucial for male sexual activity, while the ventromedial hypothalamus is key for female sexual behavior. This illustrates the gender differences in brain regions responsible for sexual behavior and motivation.

data displayed in rows and columns is called a table ? true or false.

Answers

True, because in a table its a set of facts or figures systematically displayed, especially in columns.
  the answer is true because rows and columns are part of a table

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes ________.

Answers

I believe the answer is "lactation".

Answer:

Positive feedback mechanism.

Explanation:

Feedback mechanisms are important as they maintains the homeostasis of the organism. Two main types of feedback mechanism are positive feedback mechanism and negative feedback mechanism.

The suckling of newborn increases the milk production in the female body. This is an example of positive feedback mechanism in which the final output increases the original stimulus.

Thus, the answer is positive feedback mechanism.

What makes a heterogeneous mixture different from a homogeneous mixture?

The components are mixed unevenly instead of evenly within the heterogenous mixture.
Insoluble instead of soluble particles are suspended within the heterogenous mixture.
Two liquids that normally are not mixable are mixed in a heterogeneous mixture.
The components within a heterogeneous mixture are elements instead of compounds.

Answers

In a heterogeneous mixture, the components are mixed unevenly and you can see the different thing in the mixture, while in homogeneous mixture
 (aka solution), the parts are evenly mixed together. 

hopefully this helps :)

The correct answer is that the components are mixed unevenly instead of evenly within the heterogeneous mixture.

A heterogeneous mixture basically refers to any kind of mixture, which is not uniform in composition. It is an uneven mixture of smaller component parts. In the heterogeneous mixture, with the help of certain procedures, the mixture can be separated from each other.  

On the other hand, a homogeneous mixture refers to a liquid, solid, or gaseous mixture, which exhibits the similar ratios of its constituents all through a given sample.  


Which mechanism requires energy?
A. Exocytosis
B. Osmosis
C. Diffusion of oxygen into a red blood cell.
D. Diffusion of ions through a potassium channel

Answers

The correct option is A.
Exocytosis is a type of vesicle transport which cells use to move substances out of their interior. It is an active process because it requires the energy of ATP to occur. The process of exocytosis move substances from the cell cytoplasm to the cell membrane.

The most common treatment for alzheimer's disease is to give drugs that stimulate ____.

Answers

Answer: that stimulate the production or no destruction of Acetylcholine.

There are a lot of hypothesis of what is the cause of Alzheimer's disease  but one of the most common ones, is that the disease is caused by insufficiency in the synthesis of the neurotransmitter acetylcholine. Drugs that increase its production or inhibit enzymes that destroy acetylcholine are very used to decrease symptoms.

what are the implications of cloning

Answers

Hey You! 

I assume you're talking about human or animal cloning. Some implications of cloning would be: Damage to the clone, health risks to the mother, complex altered familial relationships, commodification of human life, and more. 

What passive and active processes are involved in the electron transport chain?

Answers

The electron transport chain occurs in the mitochondria and during the process, electrons are transferred via reduction oxidation reactions coupled with the transfer of proton across the membrane.
The active process that occur in the electron transport chain is the movement of the protons across the inner mitochondria membrane against their concentration gradients. The passive process that occur in the electron transport chain is the natural movement of ions along their concentration gradient.
Final answer:

The electron transport chain involves both passive and active processes. Passive processes include the movement of electrons and protons along the chain, while active processes include the transport of protons and the transfer of electrons to the electron acceptor.

Explanation:

The electron transport chain (ETC) involves both passive and active processes. Passive processes include the movement of electrons along the chain from higher to lower energy states, as well as the flow of protons (H+) down their concentration gradient, back into the matrix, through ATP synthase. Active processes include the active transport of protons (H+) across the membrane to create a proton gradient, as well as the active transfer of electrons from reduced electron carriers (NADH, FADH2) to the electron acceptor (O2) at the end of the chain.

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