he heme prosthetic group consists of protoporphyrin and an iron (II) ion. is the reason for cooperative binding of O2 by hemoglobin. is found only in myoglobin and hemoglobin. is the reason for cooperative binding of O2 by myoglobin.

Answers

Answer 1

Answer:

The correct answer is ''consists of protoporphyrin and an iron (II) ion.''

Explanation:

The heme group makes up the prosthetic (non-protein) group of hemoglobin and is responsible for its characteristic red color. It is composed of protoporphyrin IX, in the center of which is the ferrous ion (Fe+2). Protoporphyrin IX, in turn, is composed of four pyrrolic rings. The heme group is synthesized by the mitochondria, where protoporphyrin IX binds with the ferrous ion, before being released into the cytoplasm. The heme group is released in erythrocyte lysis, thus obtaining unconjugated or indirect bilirubin.


Related Questions

geosphere burying organisms
hydrosphere respiration of marine life
biosphere photosynthesis atmosphere burning things

Answers

Answer:

This question is incomplete, the question is asking to match each activity with the sphere to which it adds carbon or CO2.

ANSWERS:

Geosphere = burying organisms

hydrosphere = respiration of marine life

biosphere = photosynthesis atmosphere = burning things

Explanation:

This question describes the types of spheres we have. The respective activities that occur in each sphere that adds CO2 or carbon are as follows:

- Geosphere: This refers to the solid part of the Earth. Dead organisms are buried in the geosphere (soil) where their carbon remains can be deposited.

- Hydrosphere: This constitutes all of the water bodies (sea, river, stream, ocean) on the Earth. When marine organisms respire in water, carbon dioxide (CO2) is released.

- Biosphere: A sphere consisting of all living things (plant, animal, microbes etc.) on Earth. Plants as a living organisms photosynthesize and make use of carbon dioxide to produce glucose, which stores in the plant.

Atmosphere: The gaseous component of the Earth. Burning substances release carbon based gases into the atmosphere.

Mention the four characteristics of warm blooded animals.​

Answers

Answer:

They maintain their body temperature higher than their environment by some metabolic processes like contraction of muscles, friction produced by flow of blood etc. They have a higher basal metabolic rate, and also a greater capacity to increase their metabolic rate.

#Impossible......!!!!!!!!!!
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What is ecosystem???? explain!!!!! ​

Answers

it is where plants, animals and other organisms work together to create life as it is

How do bacteria obtain energy to carry out their functions

Answers

Answer:

Bacteria can obtain energy and nutrients by performing photosynthesis, decomposing dead organisms and wastes, or breaking down chemical compounds. Bacteria can obtain energy and nutrients by establishing close relationships with other organisms, including mutualistic and parasitic relationships.

Explanation:

Why is the frequency of natural disasters increasing?

1. There are less natural hazards occurring

2. Human population in areas prone to natural hazards has increased

3 . Deaths from natural disasters has decreased in developed countries and increased in developing countries.

Answers

Human population in areas prone to natural hazards has increased

Why is the frequency of natural disasters increasing?

1. There are less natural hazards occurrin

2. Human population in areas prone to natural hazards has increased

2.
How do scientists classify intrusive igneous features?
according to shape, texture, and their distance from the nearest volcanic field
according to shape, color, and their relationship to surrounding layers of rock
according to shape, size, and their relationship to surrounding layers of rock

Answers

Answer:

according to shape, size, and their relationship to surrounding layers of rock

Explanation:

Intrusive igneous features are those formations around the igneous rock that are developed over time when magma cools and forms a solid shape, and they may include stocks, sills, di.kes, etc.

Therefore, scientists classify intrusive igneous features according to shape, size, and their relationship to surrounding layers of rock.

Type of symbiosis Suppose friendly ants fed on sugary droplets excreted from a caterpillar, but did nothing to help the caterpillar. Assuming that taking the sugar does not hurt the caterpillar, what type of symbiotic relationship is this

Answers

Answer:

Commensalism

Explanation:

All organisms in nature interact with other organisms in different ways. Symbiotic interactions involve a relationship between two or more organisms of different species in which one or all of them turn to be beneficiated by that relationship. These species create permanent mutual dependence.  

Symbiotic interactions include:  

• Amensalism refers to a biological relationship established between two organisms, in which one of them avoids the growth, development, or survival of the other one. In this interaction, one of the organisms seems to be strongly affected by the other one. Meanwhile, the other organism does not seem to be affected at all.  

Commensalism: In this case, the fitness of only one of the species seems to increase, while the other species is not affected at all, nor positively or negatively. The unaffected species might provide food or refuge to the other species, which is benefited.  

• Parasitism: In this case, one of the species is beneficiated, while the other suffers a consequence, reducing its fitness. These interactions are mainly about nutrition, although there might be other benefits too. Some parasite species might coexist with their host, while some others might get them ill to the point of causing death.  

• Mutualism: The interaction is favorable for both species. Their fitness increases with these interactions, although they do not need this relationship to survive. The degree of benefits might vary among species or might be equal.

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The exposed symbiotic example is a commensalism case. The ant is benefited from taking the sugary droplets. Its fitness increases. But ants do not make any harm to the caterpillar. In fact, it has no effect on them at all, no possitive nor negative. The caterpillar´s fitness is not influenced by the ant.

DNA and RNA are structurally similar in some ways but different in others. Identify whether each of the statements applies to DNA, RNA, both RNA and DNA, or neither DNA nor RNA.

Answers

What are the statements?

Where would you expect to find a mountain range caused by the collision of two continental plates on the map below? (100 points)

Public Domain


A

B

C

D

Answers

The correct answer is A.

Explanation

The image shows a map with the tectonic plates of the earth and four points are marked with the letters from A to D. The letter A indicates the collision of the Eurasian Plate and the Indian plate. The letter B indicates the border zone between Russia and the United States, however, there is no plate collision. The letter C marks are on the coast of Antarctica, but there is no collision between two plates. The letter D indicates an area on the equator, but it is not located on any plate collision. Therefore, the correct answer is A that shows the collision of the Eurasian Plate and the Indian plate where the great mountain chain of the Himalayas is formed where Mount Everest is located, the highest in the world with its summit at 8,849 meters above sea level. This is because many of the great mountain ranges of the world originate from the collision of plates such as the Andes and the Himalayas.

3. When recording medication administered to a client on the medical administration record, always add
next to each medication you deliver.
A. the client's weight
B. the client's initials
C. your initials
D. the client's resting heart rate

Answers

Answer:

option B

Explanation:

Answer:

your initials

are the ones that should be in the MAR. since your the one who gave the medication.

Aquatic biomes: Briefly describe some of the characteristics of each of the following: Lakes, Wetlands, Estuaries, Intertidal zones, Coral reefs.

Answers

Explanation:

lakes is large in its wide and stagnant water from different water bodies like river, wetlands

What is the fubtion of the nerves

Answers

Answer:

carry messages to and from the brain and spinal cord and the rest of the body

OR

it is a bundle of fibers that receives and sends message between the body and the brain

Answer:

The nervous system is the body's primary governing, regulating, and communication system. It is the hub of all mental activity, such as thinking, learning, and remembering. The nervous system, together with the endocrine system, is in charge of regulating and maintaining homeostasis.

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The second generation of purebred cross of -hom-ozygo us recessive organism, with a —hom-ozygous dominant organism, contain a ratio of approximately _______ expressed dominant traits to recessive traits.
A. 2:1
B. 1:1
C. 1:3
D. 3:1

Answers

Answer:

D. 3:1

Explanation:

Gregor Mendel, in one of his numerous studies, performed a cross between purebred dominant (TT) pea plants and purebred recessive (tt) pea plants. All the offsprings of this cross appeared heterozygous tall (Tt) in the F1 generation.

However, when he self-crossed the F1 generation i.e. Tt × Tt, Mendel obtained a phenotypic ratio of 3 tall plants (dominant traits) : 1 short plant (recessive). This showed that the masked gene (recessive) was still present.

Which of the following are the three areas of the tundra biome? (Choose all that apply.)
Arctic
Asian
Antarctic
alpine

Answers

Answer:

The three areas of the tundra biome are artic, antarctic and alpine.

A new member of your team is visually impaired. He's having a hard time reading his computer screen. How can you show that you value diversity? a) Suggest the organization may not be a great fit. O b) Tell him to apply for a different job within the organization that does not b) require computer usage. 12 Od Tell him that he might want to schedule an eye exam. c) d) Provide access to technology that can magnify or read what is on the computer screen.

Answers

Explanation:

Provide access to technology that can magnify or read what is on the computer screen.

What two aspects of internal control must the auditor assess when performing procedures to obtain an understanding of internal control?

Answers

The auditor must obtain an understanding of and perform tests of controls related to all significant account balances, classes of transactions, and disclosures and related assertions in the financial statements.

do sun spots lie in the shadow cast by the moon and earth

Answers

Answer:

La oscuridad de una mancha solar es solamente un efecto de contraste; si pudiéramos ver una mancha tipo, con una umbra del tamaño de la Tierra, aislada y a la misma distancia que el Sol, brillaría unas 50 veces más que la Luna llena. Las manchas están relativamente inmóviles con respecto a la fotosfera y participan de la rotación solar. El área de la superficie solar cubierta por las manchas se mide en términos de millonésimas de hemisferio solar visible.

Please help;
Given the range of current speeds shown on the graph above, would deposition ever be possible for clay (0.001 mm) or silt (0.01mm) particles?
Answer yes or no and explain your answer.

Answers

Answer:

Yes.

Explanation:

Yes, deposition can be possible for clay (0.001 mm) and silt (0.01mm) particles when the agent that carry its load is absent in that region such as wind. Wind is the agent that moves clay and silt particles with it so if there is high wind in a specific region, no deposition will occur while on the other hand, those areas where wind is not present, deposition will definitely occurs so we can say that deposition depends on the presence and absence of wind.

Describe what is happening in each of the phases of cellular division with what you observe from the photomicrographs in the lab instructions (describe and compare both).

Answers

Answer:

Interphase - There are 3 subphases called - G1 , S and G2 . In these subphases, DNA material is duplicated, and essential proteins for cell division are formed.

Prophase - the nuclear envelop and nucleolus disappears and condensed DNA forms chromosomes that are short in size.

Metaphase - the form of two sister chromatids are arranged in the middle of the metaphase/equatorial line. Two centrioles are found at two poles of the cell which initiate the formation of spindle fibers.

Anaphase - spindle fibers are formed and can be observed. These fibres attach with the kinetochore present in the centromere of chromosomes and these chromatids now start separated by pulling and pushing force of spindle fibers in opposite poles

Telophase -  chromatids reach at destination pole and then nuclear envelop starts creating again in both poles. Nucleolus reappears and now in a cell two nucleus are found.

Explain how a bottleneck event can enrich recessive traits in the genetics of a population.

Answers

Answer

A bottleneck event severely reduces the fraction of a species able to pass on their genes to offspring. Any once rare recessive traits present in the surviving breeding population are passed to a larger fraction of the total population of offspring, thereby enriching those recessive traits in the total gene pool .

Bottleneck events can limit variation if the dominant allele population gets wiped out for any reason and the recessive allele can appear to be in the majority however this does not shows the actual makeup of the population.

What is bottle neck effect?

The bottleneck effect is defined as a reduction and subsequent increase in a population's size affects the distribution of genetic variation among its individuals.

Examples of bottle neck effect  is when the northern elephant seals have reduced genetic variation likely because of a population bottleneck humans imposed on them in the 1890s. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century.

For more information regarding bottleneck effect, visit:

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In New York, the worst-hit state, a total of 350,121 cases have been confirmed and 28,232 deaths have been reported. There are now 29 states with tens of thousands of cases, and more than 50,000 in New York, New Jersey, Massachusetts, Illinois, California, Pennsylvania and Michigan

Answers

Answer:

Thats true

Explanation:

In a study involving a cell-free translation system from coli, the polyribonucleotide AUGUUUUUUUUUUUU directs the synthesis of the oligopeptide fMet-Phe-Phe-Phe-Phe. In the presence of a new class of translation-targeting antibiotics that bind to the large ribosomal subunit, the ribosomal complex forms, the initiator tRNA binds the mRNA, the second tRNA enters the A site of the ribosome, but no peptide bonds form. Which of the following is a likely function of these new antibiotics?

a. Blocks peptidyl transferase activity
b. Inhibits tRNA aminoacyl synthetase function
c. Inhibits ribosomal translocation along the mRNA
d. Prevents anticodon base-pairing with the codon
e. Blocks binding of the Shine-Dalgarno box to the rRNA

Answers

Answer:

c. Inhibits ribosomal translocation along the mRNA.

Explanation:

Initiator tRNA is thought to bind directly to P-site of small ribosomal sub unit. These tRNA are positioned at P site and remain attached to tRNA located at this site. Initiation factor helps to mediate this event.

what is osmolarity of mammalian urine?​

Answers

Answer:

The osmolarity of mammalian urine may vary over time. The osmolarity of mammalian urine varies little between species. Mammalian urine is always hyperosmotic to blood. The osmolarity of mammalian urine may vary over time.

Explanation:

I hope it will help you

is important to the transmission of nerve impulses.
a) Zinc
b) Calcium
c) Sodium
d) Iron
Please help thx

Answers

is important to the transmission of nerve impulses.

a) Zinc

b) Calcium

c) Sodium

d) Iron

[tex] \bold \pink{sodium}[/tex]

Answer:

B)Calcium

Explanation:

Have a nice day

Name one geographic region that has few or no fossil primates and explain why.

Answers

Answer:

Australia

Explanation:

Fossils are preserved remains (or mouldings) of ancient living things which are preserved in sedimentary rocks. Primate fossils are generally found along with other fossils, usually in ancient soils that contain information on the conditions under which they were formed. Primate fossils are generally found in tropical and subtropical regions (which represent the natural habitat in which these species live). Primates never lived in Australia, and therefore no fossil primates from this geographic area have been found.

Which level of organization includes all the other levels of organization?

Answers

answer : biosphere

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Answer:

The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

Answer:

biosphere

The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

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How does temperature and concentration of monounsaturated phospholipids change the rate at which molecules permeate the plasma membrane? Does this change occur equally for low permeability ions the way and large molecules as it does for gasses and high permeability molecules?

Describe the way that enzymes increase the rate of chemical reactions in the cell. What other factors related to enzymes can increase or decrease this rate and why?

Answers

Answer:

я не знаю ответа извините

Explanation:

Which of the following statements are true
A calorie is a unit of heat
B one calorie is the energy required to raise 1 kilogram of water
C the preferred unit in metabolism studies and nutrition label is a kilogram

Answers

Answer:

Calorie is a unit of heat

what is the effect of increasing the concentration of each of the following metabolites on the net rate of glycolysis; 1.glucose 6-phosphate. 2. Fructose 1,6-bisphosphate 3. citrate 4. Fructose 2,6-bisphosphate​

Answers

Answer:

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Which two events are part of the rock cycle?
O A. Carbon cycles between plants and animals.
B. Plants take minerals from soil and grow.
C. Melted rock cools and solidifies.
D. Sediment is buried and compacted.

Answers

C: melted rock cools and solidifies

D: sediment is buried and compacted

Answer:

1) Sediment is buried and compacted

2) Melted rock cools and solidifies

Explanation:

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Destiny just received two separate gifts from her great-great-grandmother.The first gift is a box of 18 chocolate candy bars, and the second gift is a pack of 12 cookies.Destiny wants to use all of the chocolate candy bars and cookies to make identical snack bags for her cousins.What is the greatest number of snack bags that Destiny can make? Choose one of the four scaffolding strategies between pages 121 and 127. Think abouthow you would develop class routines to support students with their literacy skills usingone of these strategies. How would you go about fostering academic language and/orhelping ML students engage with the grade-level content? [Answer in 3-5 sentences forfull credit.] Read the following excerpt from The Story of My Life by Helen Keller and then answer the question that follows.The morning after my teacher came she led me into her room and gave me a doll. The little blind children at the Perkins Institution had sent it and Laura Bridgman had dressed it; but I did not know this until afterward. When I had played with it a little while, Miss Sullivan slowly spelled into my hand the word "d-o-l-l." I was at once interested in this finger play and tried to imitate it. When I finally succeeded in making the letters correctly I was flushed with childish pleasure and pride. Running downstairs to my mother I held up my hand and made the letters for doll. I did not know that I was spelling a word or even that words existed; I was simply making my fingers go in monkey-like imitation. In the days that followed I learned to spell in this uncomprehending way a great many words, among them pin, hat, cup and a few verbs like sit, stand and walk. But my teacher had been with me several weeks before I understood that everything has a name. I left the well-house eager to learn. Everything had a name, and each name gave birth to a new thought. As we returned to the house every object which I touched seemed to quiver with life. That was because I saw everything with the strange, new sight that had come to me.Which of the following best summarizes the excerpt?A.Helen was excited to learn that everything had a name so that she could talk with her teacher.B.Helen's teacher taught her to finger spell doll so she knew how to tell her teacher what toy she wanted to play with.C.Helen's teacher taught her all objects have a name opening the world of language.D.Helen liked to touch all the objects in the house so she knew which ones she wanted to play with. F=(4i+3j)N acts on an object of mass m=2k.g and drags it by moving the object from origion to x=5m. Find the workdone on the object and the angle between the force and the displacement Many nurses __ hard and they often work overtime to look after their patients. A. doing B. works C. profession D. work find the inequality represented by the graph Which statement does not describe a difference between government and household budgets? In the short term, economists would expect the budget deficits and surpluses to fluctuate up and down with the economy and the automatic stabilizers. Most economists view the proposals for a perpetually balanced budget with bemusement. Most economists agree with the proposals for a perpetually balanced budget. Economic recessions should automatically lead to larger budget deficits or smaller budget surpluses, while economic booms lead to smaller deficits or larger surpluses. Write a couple of paragraph on changes in our locality. include the comparison of the houses, life style and attitudes of people that you have seen in past and at present. Khloe Company imports gift items from overseas and sells them to gift shops and department stores throughout the United States. Khloe Company provided the following information: a. The October 31 balance in the cash account is $53,817. b. All sales are on account. Sales in September were $950,000 and in October were $1,240,000. c. November sales are expected to be $2,145,000. d. In Khloe's experience, 70 percent of sales are collected in the month of sale and 28 percent are collected in the month following sale. The remaining credit sales are uncollectible. e. Khloe purchases all merchandise on account. Purchases in September were $750,000 and in October were $980,000. November purchases are expected to be $2,000,000 as Khloe prepares for the Christmas buying season. Fifteen percent of purchases are paid in the month of purchase, while the remainder is paid in the month following the purchase month. f. Khloe Company has nine employees who are paid a total of $48,000 per month. Due to timing issues, about 90 percent of total wages are paid in the month earned and the remaining 10 percent are paid in the following month.g. Rent for Office and warehouse space is $12,300 paid monthly in cash. h. Utilities average $6,100 per month and are paid in cash. e. In November, Khloe expects to pay employment taxes of $6,625. f. Since Khloe imports product from overseas, customs duty and shipping to the central location g. Of 30 percent Of current monthly purchase cost must be paid in the month of purchase. h. Other cash expenses for November are expected to be $41,500. Required:a. Prepare a cash budget for Khloe Company for the month of November.b. What if Khloe faced a customs duty and shipping percentage of 35 percent How would that affect the November cash budget?