An 18-month-old boy was referred to the pediatrics clinic because of persistent anemia and associated failure to thrive. Laboratory analysis confirmed a microcytic anemia and revealed blood lead levels of 50 mg/dL (2 times normal levels) and high levels of coproporphyrinogen III in the urine. The child was put on chelation therapy and recovered uneventfully. The cause of the child's difficulty was most likely due to the effects of the lead. The findings in this patient most closely reflect lead inhibition of which of the following enzymes of heme biosynthesis?a) δ-aminolevulinic acid (ALA) dehydrataseb) ferrochelatasec) porphobilinogen (PBG) deaminased) proporphyrinogen III cosynthasee) uroporphyrinogen decarboxylase

Answers

Answer 1

Answer:

B) Ferrochelatase

Explanation:

The hematological effects of lead poisoning includes the inhibition of the body's ability to produce hemoglobin. This is done by interfering with several enzymatic steps in the heme synthesis pathway.

Lead inhibits or decreases heme synthesis by inhibiting Ferrochelatase enzyme activity.

Ferrochelatase catalyses the insertion of iron into protoporphyrin IX and is very sensitive to lead.


Related Questions

Match the condition with its descriptor. a. acne vulgaris f. basal cell carcinoma b. athlete’s feet g. rosacea c. impetigo h. shingles (herpes zoster) d. psoriasis i. warts e. herpes j. boils ____ 1. contagious fungal infection ____ 2. also called carbuncles and are painful __A_ 3. common and chronic disorder of the sebaceous glands _P__ 4. chronic inflammatory skin disease characterized by dry, reddish patches that are covered with silver-white scales _G__ 5. common inflammatory disorder characterized by chronic redness and irritation of the face __c_ 6. acute, inflammatory, and contagious skin disease seen in babies and young children ____ 7. viral infections that affect the skin surrounding the nail __ 8. most common and least malignant type of skin cancer __ 9. is caused by virus same as the one that causes chicken pox ____ 10. viral infection that is usually seen as a blister

Answers

Answer:

c

Explanation:

When objects of two different temperature are in contact, what happens?

Answers

Answer:

The answer is C.

Explanation:

This is because the objects will exchange thermal energy, until thermal equilibrium is reached, i.e. until their temperatures are equal. We say that heat flows from the hotter to the cooler object.

Energy is transferred from a warmer to a cooler object through the phenomenon of heat. For instance, a large pan of lukewarm water will gain heat from a lit match (a higher temperature object) (lower temperature object). Thus, option C is correct.

What change in temperature when object are in contact?

It feels warmer in your hands to hold a hot cup. The heat is moving from one object to another, which is what you are feeling. Your hands receive the hot chocolate's thermal energy.

Heat is exchanged when two objects are at different temperatures. Up until the two items are at the same temperature, the cooler object warms up. Always, heat energy moves from a hot object to a cooler one.

The colder end will get energy from the hot end as it passes through the rod. The temperature will eventually equalize across the entire rod. Wearing gloves is crucial when working with hot metal, for this reason.

Therefore, The warmer object transfer heat energy to the cooler object.

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Which of the following is a distinct structure found specifically in the liver, spleen, and bone marrow?
Select one:
a. Sinusoidal capillaries
b. Fenestrated capillaries
c. Venous sinus
d. AV anastomoses
e. Continuous capillaries​

Answers

Answer:

option A is correct

Explanation:

a sample of an unknown liquid has a volume of 12.0L and a mass of 6g. what is its density? show your work explain how you determined this value brainly

Answers

Explanation:

12.0L =12000cm^3

[tex]density = \frac{mass}{volume} [/tex]

[tex] = \frac{6}{12000 } \\ = 0.0005 {gcm}^{3} [/tex]

The adrenal glands produce hormones that impact short-term responses, including fear and anger.

Norepinephrine and __________ are examples of these hormones.

Answers

Answer:

Epinephrine, also known as Adrenaline

Explanation:

Adrenaline impacts short-term mood and can take seconds to flood your system.

*it may also be cortisol, I'm not sure if there's more context. Cortisol takes longer to work and can have long-term effects.

Which of the following California animals is found in both marshlands and grasslands?

Answers

Answer:

pronghorn antelope.giant kangaroo rats.gophers.mule deer.

Please help! Will give Brainliest!

Answers

Answer:

A. Do bees fly faster before or after feeding?

Explanation:

 Because of the observations made, you can assume the answer has something to do with the bees weight, or wing support. Because the bee probably has a harder time flying when it has more weight on it, the answer is probably A.

I believes it’s A! Correct me if I’m wrong

Consider the cladogram. A cladogram is shown. Roundworms have the derived characteristics of true tissues, bilateral symmetry, and a pseudocoelom. Which group of organisms has the derived characteristics of true tissues, bilateral symmetry, and a pseudocoelom? sponges roundworms annelids chordates

Answers

Answer:

The correct answer is - roundworms.

Explanation:

The answer is already mention in the question, however, the detailed answer is as follows:

The characteristics that are given in the question are true tissues, bilateral symmetry, and a pseudocoelom. Worms or helminths are known as primitive form of organization of the Bilaterians. All three group of worms or helmints have a basic bilateral symmetry.

These organisms inaugurated various characteristic that are found and carried by other animals such as  true tissues, bilateral symmetry, and a pseudocoelom.

Thus, the correct answer is - roundworms.

Answer:

its b

Explanation:

Immigration will cause a population to increase if

A. the birth rate is greater than the death rate

B. the birth rate and death rate are balanced

C. the birth rate doubles and the death rate does not

D. the death rate is greater than the birth rate

Answers

Answer:

If the birth rate is greater than death rate.

The answer to the problem is A.

In humans, the ability to roll up the sides of the tongue into a U-shape is controlled by one gene. Ability to roll the tongue is dominant to the inability to roll it. If two people who can roll their tongues each had one parent who could not, what is the probability that they will have a child who cannot roll his/her tongue

Answers

Answer:

25%

Explanation:

male                                

can roll tongue     -     cannot roll tongue

female

can roll tongue     -     cannot roll tongue

If they have a child, the possible combinations are:

1)

father's gene: can roll tongue

mother's gene: can roll tongue

RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE

2)

father's gene: can roll tongue

mother's gene: cannot roll tongue

RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE

3)

father's gene: cannot roll tongue

mother's gene: can roll tongue

RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE

4)

father's gene: cannot roll tongue

mother's gene: cannot roll tongue

RESULT = THE CHILD WILL NOT BE ABLE TO ROLL HIS/HER TONGUE

16. Which one of the following statements best describes group behavior?

A. Group behavior depends solely on its most influential individual members.
B. Group behavior is a thing apart from the behavior of any individual in the group.
C. A group is the sum of the behavior of all of the group members.
D. As a group behaves, so too will each individual in the group.

Answers

Answer:

C. A group is the sum of the behavior of all of the group members.

Explanation:

The statement which best describes group behavior is: C. A group is the sum of the behavior of all of the group members.

A group is also referred to as a team and it can be defined as a group of people or set of individuals having various skill set, knowledge, ideas and experience, who come together to work on a project or task, in order to successfully achieve a set goal and objective.

Therefore, individuals working as a group usually interact with the other group members and as a result, this enhances performance and strengthen the level of relationship they share.

In conclusion, a group is the overall sum of the behavior of all of the members in a particular group.

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Scientists are able to reproduce certain plants and animals by cloning them in laboratories. The diagram shows the steps of cloning using tissue cultures. Do you think cloning is a form of asexual reproduction? Explain your answer using evidence from the diagram

Answers

Answer:

Yes.

Explanation:

Yes, cloning is a form of asexual reproduction because there is no fusion of sperm and eggs takes place. the animal which is formed from this process is identical of that organism because it is produced from the tissue of that single animal. in 1996, first mammal is produced from cloning was sheep named dolly at the Roslin Institute in Scotland. In cloning, the egg is taken from female organism and remove the nucleus from the egg then the desired organism cell is taken and fuse with the nucleus with the help of electricity. Then implant this embryo in the body of first organism from where egg is taken and after that the embryo turns into a baby, this process is called cloning.

Answer:

Yes, cloning is a form of asexual reproduction. The diagram shows that new plants form from a single parent plant, which means that the offspring are genetically identical to the parent.

Explanation:

Edmentum

Scientists want to track the wind speeds and precipitation for a hurricane that will affect the entire East Coast of the United States. Which weather equipment would be best to measure the impact of the storm for this entire region? A. an anemometer B. a rain gauge C. Doppler Radar D. global positioning system (GPS)

Answers

Answer:

A anemometer an instrument for measuring the speed of the wind, or of any current of gas.

GPS is to see where you on on the earth so this is a no.

rain gauge only shows the amount of rain  so this is a no

Doppler radar determine's the location and velocity of a storm, clouds, precipitation. So therefore, this is your answer.

Explanation:

Human Bones
Name three components of bones and describe
their function.

Answers

Answer: 1st the periostneum which is the outside of the bone and a thin but dense layer that has nerves and blood vessels

2nd compact bone. It is very smooth and very hard

3rd and lastly Cancellous, this looks a little like a sponge but much harder.

Explanation:

Answer:

The periosteum is a thin, dense membrane that contains nerves and blood vessels that nourish the bone.

Compact bone is smooth and dense. It is the hard part of the bone.

Cancellous bone looks like a sponge and protects the bone marrow.

Bone marrow is a thick jelly that makes blood cells.

Explanation:

These are the check offs for edge 2021

Una planta de flores púrpura se cruza con una planta de flores blancas, obteniéndose una descendencia en la segunda generación filial de 50 % heterocigotas, 25% homocigotas dominantes y 25% homocigotas recesivas. (el color púrpura domina sobre el blanco) Diga: ¿Qué genotipos y fenotipos tienen los padres para que se cumpla esta proporción en la segunda generación? ¿A qué la ley que corresponde? ¿Por qué los padres presentan ese genotipo y cuál es el fenotipo que expresan la segunda generación filial? Explique. Demuestre con cruces

Answers

Answer:

Los padres son homocigotas y la F1 estará formada por individuos heterocigotas

Explanation:

El cruzamiento entre un ejemplar homocigota dominante P (flores púrpura) y un homocigota recesivo p (flores blancas) para un rasgo determinado por un sólo un gen con dominancia completa producirá una generación filial F1 100% heterocigota. Por su parte, cuando cuando estos individuios cuyo genotipo es Pp se cruzan entre sí, los genotipos esperados en la F2 serán 1 (PP, homocigota dominante): 2 (Pp, heterocigota): 1 (pp, homocigota recesivo). Esta aserción corresponde a la segunda ley de Mendel, la cual es conocida como la Ley de Segregación Independiente.

Which of the following questions is the most testable through scientific experimentation? Will mark brainliest, plz help A. which gelatin takes longer to set: gelatin with fruit or gelatin without fruit B. Which fruit looks more attractive in gelatin: bananas or apples C. Which tastes better: gelatin with fruit or gelatin without fruit D. Which fruit do more people buy in one year: bananas or apples

Answers

Answer:

Which gelatin takes longer to set: gelatin with fruit or gelatin without fruit.

Explanation:

3. What are the consequences of felling of trees?​

Answers

Answer:

The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.

Explanation:

Select the correct answer from each drop down menu.
During an experiment, readings for blood pressure in a person's body were found to be constant. However, when measured by a
different blood pressure cult, the readings differed by 15 points for each reading. This difference indicates that the results are
but not
Reset
Next
dimentum. All rights reserved

Answers

Answer:

The results are precise but not accurate

Explanation:

Precision is the term that refers to the degree of agreement between measured results. This means that the measurements of the finished system are very similar and with equal differences, under the same conditions.

An example of this is the results shown in the question above, which are very similar. In addition, these results do not have the "real and absolute value" and therefore are not accurate.

Farming, grazing of livestock, mining, and drilling combined account for: Over 1/2 of deforestation About 1/3 of deforestation 3/4 of deforestation All of deforestation

Answers

Answer:

Over 1/2 of deforestation

Explanation:

Farming, grazing of livestock, mining, and drilling combined account for Over 1/2 of deforestation or more than half of deforestation.

These are few of the major causes of deforestation which is continuously destroying forests and wildlife that leads to global warming.

Forests are destroyed for farming purposes, overgrazing by cattles, urbanization of forests in industries and towns, mining, and drilling should be controlled to save deterioration of the earth.

Hence, the correct answer is "Over 1/2 of deforestation ".

can DNA be extracted from dead cells

Answers

The short answer is yes. Based on your DNA, your body is better suited for some foods than others. This company found that 45% of people’s genes need a high carb diet, 47% need moderate and only 8% need low.

Hope this helped! <3

What are the two components of the scientific name of a species in the Linnaean system? Select all that apply. Genus, Specific epithet, Phylum, Family.

Answers

Answer:

Genus, Specific epithet

Explanation:

The scientific name was created to establish a standardized language that would allow scientists and scholars around the world to be able to present living beings independently of their native language.

For this purpose, it was decided that the scientific name would be a binomial composition, that is, it would use two names. The first name refers to the genus to which the species belongs, the second name refers to the specific epithet that is the specific descriptor of that species. In addition, the scientific name should be written in italics and have the first initial letter written in uppercase. Ex: Homo sapiens.

Sort the tiles to show the characteristics of life that they describe.

Answers

Answer:

The characteristics of the life shared by all living organisms.

Explanation:

There are seven characteristic of life shared by living things.

Reproduction :- these characteristics are performed that single cell organisms diving to the cell prepares to the form of the second new cell.Regulation :- regulation perform that complex and require to the internal functions and contain that specific function.Energy processing :- the energy process performed that source of energy for the metabolic activities, and convert the chemical energy.Homeostasis :- these characteristics maintain the internal conditions and diverse the chemical  process.Growth :- these characteristics provide the instruction direct cellular growth and development .Sensitivity :- that can perform by the plant can be source of light, considered by the positive response .Order :- this is highly organized structure and cell complex to the molecules.

Which statement about balancing selection is correct? View Available Hint(s) Hint 1.opened hint What is balancing selection, and how does it differ from other forms of selection? Which statement about balancing selection is correct? When balancing selection occurs, no single phenotype has a distinct advantage over others in terms of fitness. When balancing selection occurs, all phenotypes have equal fitness. When balancing selection occurs, certain phenotypes are favored when they are common but not when they are rare. When balancing selection occurs, phenotype does not matter.

Answers

Answer:

Correct statement: When balancing selection occurs, certain phenotypes are favored when they are common but not when they are rare  

Explanation:

You will find the explanation in the attached file due to technical problems.

Complete urinary obstruction causes which of the following? (Select all that apply.) Increased urinary stasis Increased urinary frequency Decreased hydrostatic pressure Decreased glomerular filtration Increased predisposition to infection

Answers

Answer:

hydrostatic pressure increaes and decreased in glomerula filtration and increase in urinary stasis

Explanation:

which of the following is NOT a type of volcano?

Answers

Answer:

Eliminate from the following

Explanation:There following are the only types of volcanos

Cinder cones,composite volcanoes,shield volcanoes and lava domes

Answer:

Explanation:
Pictures?

Which structure is located between the trachea and a bronchiole? A. epiglottis B. pharynx C. alveolus D. bronchus

Answers

the correct answer is the bronchus

Explain why fermentation stops after
a certain time in making
making bread?

Answers

Answer:

The yeast die at 140° F

Explanation:

The fermentation process is caused by the living organisms called yeast feeding on the sugar in the dough. As the yeast feed on the sugar they release CO² which causes the bread to rise but once the bread in the oven reaches 140° all the yeast are killed off and the fermentation process stops.

The process of fermentation stops after a certain time in making bread because the organism which carries this process has been killed.

What do you mean by Fermentation?

Fermentation may be defined as a process a chemical process by which molecules such as glucose are broken down anaerobically in the presence of yeast.

During fermentation, the yeast produces excess carbon dioxide due to which the dough of bread swells. But after the completion of fermentation when bread places in the oven or any other warmer temperature, it killed the yeast, and hence fermentation stops.

Therefore, the process of fermentation stops after a certain time in making bread because the organism which carries this process has been killed.

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Which of these questions can be answered using science? Is human travel beyond our solar system possible? Should the use of green energy be increased? What is the best vacation spot? Which is the best online store?

Answers

Answer:

"Is human travel beyond our solar system possible?" can be answered using science.

Explanation:

I just took the test.

Hope this helps! - J

The question that can be answered by science is "Is human travel beyond our solar system possible". Thus, the correct option for this question is A.

What is Science?

Science may be defined as a branch of scientific study that involves the application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

It can broadly be classified into three categories such as Physics, Chemistry, and biology. Each sub-classification illustrates its own field of detailed study.

Science always deals with the concept of nature as well as natural phenomena. So, among the given options, the solar system is an important component of it.

The answer to this question is little bit complex but definitely the answer should be determined with the help of science only.

Therefore, the question that can be answered by science is "Is human travel beyond our solar system possible."

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A week after a near-drowning incident, a 6-year-old boy presents with respiratory distress, tachypnea, and fever. What should you suspect

Answers

Answer: I would suspect there was actually something in the water that caused this. Maybe the child swallowed some of the water.

Explanation:

Shown above

Which of the following sequences is correct for the downhill movement of electrons during cellular respiration? A. glucose – citric acid – ATP – NAD+ B. glucose – NADH – electron transport – O2 C. glucose – pyruvate – ATP - oxygen D. glucose – ATP – electron transport - NADH E. glucose – Kreb’s cycle – NADH - ATP

Answers

Answer:

B. glucose – NADH – electron transport – O2

Explanation:

This is the sequence  from glycolysis in which  glucose molecules are split down to pyruvate, to oxidative phosphorylation.

During this process the electrons are released from glucose  molecule as it is oxidised multiple times as pyruvate, and other molecules formed subsequently in Kreb's cycle, until the oxidative phosphorylation is reached .

The makes the  carrier molecules to be reduced.Thus NAD→NADH,FAD→FADH .

The electrons from above are  transferred in hydrogen atoms  to matrix by these co-enzymes.Where the H is split to electrons  and protons.

The electrons for the ETC, produce the PMF for transporting  protons into the intramembrane space.

The concentration of protons generated the electrochemical gradients  which is needed to produce energy for for phosphorylation of ADP with Pi to form ATP by ATpase synthase.

The electrons moves as chain,and this is finally accepted by oxygen as the final electron acceptor.

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John can jog twice as fast as he can walk. He was able to jog the first 5 miles to his grandmother's house, but then he tired and walked the remaining 2 miles. If the total trip took 0.9 hours, then what was his average jogging speed? 50 POINTS!Choose a stanza from any poem, including those in this lesson. Write a paraphrase of those lines. Then compare the original stanza with the paraphrase. What has changed in the transition from poetry to prose? Apollo 17 astronauts eugene cernan and harrison schmitt collected the last samples of moon rocks to bring back to earth in 1972 The astronauts took measurements of the moon rocks using three categories not affected by gravity this is because the earth and moon have different forces of gravity which measurement did they not use?A-VolumeB-Weight C-MassD-Density Factor: 2(4-y)-j(4-y) When entering a foreign market, Montain stream brewery purchases a manufacturing plant and sets up a new brewery. Instead of using their signature name, the product produced in the foreign market is labeled as Everest Prak Brew This is an example of? How to do this question plz answer me step by step plzz plz plz plz plz plz plz plz What expression describes 2a in the expression 2a2+2a-11 What's a commercial bank most likely going to do with your money when you deposit it?Question 10 options:Keep it in a central safe at the bank until you are ready to withdraw itSend it to one of the 12 main Federal Reserve Banks for safekeepingLoan it out to someone else at a higher rate of interest than the rate you are earningInvest it in the stock market and update your balance according to the market's performance Active Voicein Sentence Writing!1. She was tired of studying. The radial component of acceleration of a particle moving in a circular path is always:________ a. negative. b. directed towards the center of the path. c. perpendicular to the transverse component of acceleration d. all of the above The position of an object at time t is given by s(t) = -9 - 3t. Find the instantaneous velocity at t = 8 by finding the derivative. I think its either -3 or -36 Perhaps you wanted pizza for dinner, but were out voted by the rest of the family who wanted chili. This is similar to what happens in a community. One person has to give up a right for the good of the group. Sometimes citizens' duties and rights conflict with each other. A good example is a public protest. People have the right to meet in groups and share ideas. However, a protest can disrupt traffic or other normal activities. A city must provide extra police protection to keep people safe. Therefore, the city has the right to require permission in advance for a protest. Government must make laws to balance the rights of individuals and different groups of people. To what is a family compared to in this paragraph? Voting Community Public protest Laws and rights Simplify the following expression and writein scientific notation.(0.00045)(500,000)0.0015 Find the least number which added to 3597 will make it a perfect square? Joseph McCarthy: a Group of answer choices was an embarrassment to his party by 1954. was hailed as an American hero for his fight against communism. successfully uncovered the communist infiltration of the U.S. army. successfully uncovered the communist infiltration of the federal government. had the full support of the Senate during his anticommunist crusade. Lin wants to play an online game with her friends. She read the description of the game and knows it contains several features with addictive design, including rewards for completing levels and long game times with penalties for quitting early. She likes the game but doesnt want to get sucked in and skip her homework (which has happened before)! Name two guidelines Lin should set for herself before playing the game. A circle has a circumference of 153.86153.86153, point, 86 units.What is the radius of the circle? As the workforce becomes more diverse, why does performance appraisal become a more difficult process? Geese Company utilizes the LIFO retail inventory method. Its cost-to-retail percentage is 60% based on beginning inventory and 64% based on current-period purchases. The company determined that beginning inventory at retail was $200,000 and that during the current period a new layer was added with retail value of $50,000. The cost of ending inventory should be Identify the difference between natural and artificial dyes.