Blood is buffered by carbonic acid and the bicarbonate ion. Normal blood plasma is 0.024 Min HCO?3 and 0.0012 M H2CO3 (pKa1 for H2CO3 at body temperature is 6.1).What is the pH of blood plasma?
Answers
The pH of normal blood plasma is approximately 7.4.
The pH of blood plasma can be found by using the Henderson-Hasselbalch equation, which is
pH = pKa +log10([A-]/[HA]).
pKa is given as 6.1 for H2CO3 at body temperature, [A-] is the concentration of the bicarbonate ion, HCO3- (0.024 M, and [HA] is the concentration of carbonic acid, H2CO3 (0.0012 M).
pH = 6.1 + log10(0.024/0.0012)
Calculate the log10 value:
pH = 6.1 + log10(20)
pH = 6.1 + 1.3
pH = 7.4
So, the pH of normal blood plasma is approximately 7.4.
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Related Questions
how do Asian elephant move
Answers
Answer:
QUESTION:
how do Asian elephant move
ANSWER:
https://www.nationalgeographic.com/animals/mammals/facts/asian-elephant
Explanation:
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On what factors does numbers of sweaters a factory owner produces depend?
Answers
They are employed in the creation of goods and services. Land, labor, capital, and entrepreneurship are the four categories of components of factory production that economics distinguish between.
What are the four production factors used for?The factors of production are the resources needed to produce a good or service in order to earn money. The four elements of production are land, labor, capital, and entrepreneurialism, according to economists. An economy could be said to be built on them.
What are the four production factors?Land, labor, capital, and entrepreneurship are the four categories into which economists generally divide the components of production. Natural resources are referred to as "land," "labor" is defined as "work effort,” and "capital" is everything created that is used to create anything else.
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Plants and animals are made up of what cells.
Answers
Answer:
plants are multicellural so they are made from different cells
Answer:
Eukaryotic cells
Explanation:
1. Plant and animal cells are eukaryotic, meaning that they have nuclei. Eukaryotic cells are found in plants, animals, fungi, and protists.
The process in which T cells interact with dendritic cells at the junction of the thymic cortex and medulla is called
Answers
The process in which T cells interact with dendritic cells at the junction of the thymic cortex and medulla is called Positive selection.
cells are white blood cells that are responsible for cell-mediated immunity, while dendritic cells are antigen-presenting cells that present antigens to T cells and B cells and play an important role in the initiation of the immune response.
Positive selection of T cells: In the thymus, positive selection ensures that the T cells that are generated can recognize MHC molecules on host cells and are not reactive to self-antigens. Positive selection ensures that only T cells capable of responding to MHC-peptide complexes are allowed to mature, whereas those that do not recognize MHC-peptide complexes or that recognize self-antigens are deleted.
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There are two alleles at the J locus: J 1
and J 2
⋅J 2
is the less desirable allele-in homozygous form it is lethal-and its frequency in the current generation is .2. What will be the frequency of J 2
in the next generation if: a. with respect to fitness, J 1
is completely dominant to J 2
? b. J 2
is partially dominant such that J 1
J 2
individuals produce 70% fewer offspring than J 1
J 1
types? c. Compare your results for (a) and (b) above and explain why they differ.
Answers
Answer:
Explanation:
DONT KNOW SORRY
Explain how colonial organisms may have evolved into eukaryotic cells.
Answers
Answer:
The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
Help me on question 5 please!!
Answers
Hello, I believe this is the answer;
After 2 half-lives: 1000 atoms.
After 4 half-lives: 250 atoms.
Hope this helps :)
Which of the following statements is NOT true about the debate over the nature of genetic
material?
A. Many scientists believed that DNA was not the genetic material because, with only four types
of nucleotides, DNA did not have enough variability to store information.
B. Scientists focused on carbohydrate and protein in their studies of possible genetic material
since they knew that genes were on chromosomes and that chromosomes were made of carbohydrate and protein.
C. Many scientists thought that proteins had a greater capacity for storing information because
proteins contain 20 amino acids that could be sequenced differently.
D. Some scientist thought that RNA was likely to be the genetic material.
Answers
B. Scientists focused on carbohydrate and protein in their studies of possible genetic material since they knew that genes were on chromosomes and that chromosomes were made of carbohydrate and protein. (This statement is not true. Scientists knew that chromosomes were made of both protein and DNA, not carbohydrate.)
This statement is not true. While scientists knew that genes were on chromosomes, they did not focus on carbohydrates and proteins as possible genetic material. Rather, they focused on nucleic acids, including DNA and RNA, which were found in chromosomes. It was eventually discovered that DNA is the genetic material.
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Help MEEEE PLEASEE........
Answers
Answer:
Z
Explanation:
Because it includes various other ecosystems
Explanation:
which is NOT part of the cell theory?
A) all living thing a are composed of cells
B) Cells are the building blocks of germs
C) All cells come from other cells
D) Cells are the basic units of structure and function in living things
Answers
Answer:
B.
Explanation: Hope this helps! ^^
What is a cold front?
Answers
Answer:
The boundary of an advance mass of cold air, In particular the trailing edge of the warm sector of a low pressure system.
Diffusion
Osmosis
Active transport
All of these are methods by which a cell
Answers
Diffusion, osmosis, active transport. all of these are methods by which a cell maintains homeostasis. Thus, the correct option is A.
What is Homeostasis?Homeostasis can be defined as the ability or tendency of an organism to control and maintain a constant state or same internal environment. Such organisms can control and also regulate their internal environment constant and also maintain it in stable conditions.
Cell transport helps to maintain the state of homeostasis by keeping the conditions inside the body in a normal range in the organism's cells. Each and every cell in body must maintain homeostasis in order to survive. One way through which the cell maintains homeostasis is by controlling the movement of substances across the cell membrane.
Active transport, osmosis, and active transport are the methods of cell transport, which help to maintain homeostasis.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Diffusion, osmosis, active transport. all of these are methods by which a cell
a. maintains homeostasis.
b. creates energy.
c. removes waste.
d. reproduces.
(05. 01 MC)
Recent molecular evidence suggests that the ancestors of the Aboriginal Australians may have arrived on that continent much earlier than originally thought, suggesting that there may have been two waves of human migration out of Africa instead of only one. What is the best next step for scientists considering this alternative explanation? (2 points)
Answer Choices:
Look for fossil evidence that might support this explanation. Determine the amount of popular support for the theory. Convince the scientific community the new explanation is true. Assume the molecular evidence is wrong since it does not fit with what is known
Answers
Given the statement, "Recent molecular evidence suggests that the ancestors of the Aboriginal Australians may have arrived on that continent much earlier than originally thought, suggesting that there may have been two waves of human migration out of Africa instead of only one," the best next step for scientists considering this alternative explanation would be to look for fossil evidence that might support this explanation.
An explanation for the same is given below: As per the given statement, the ancestors of the Aboriginal Australians may have arrived on that continent much earlier than originally thought, suggesting that there may have been two waves of human migration out of Africa instead of only one.
Since this is an alternative explanation for what is already known, the best next step for scientists is to look for fossil evidence that might support this explanation. They need to find and analyze fossils of those early humans, which would provide evidence for this alternative theory.
In addition, it would also be essential to test the molecular evidence further and conduct more research to find any possible inconsistencies. This could provide scientists with a more in-depth understanding of how early humans migrated from Africa to different parts of the world. Thus, the best option would be to look for fossil evidence that might support this explanation.
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Archie Carr helped save turtles from extinction. What did he do during Operation Green Turtle?
A.) He made laws against hunting turtles.
B.) He took turtle eggs to safe beaches.
C.) He cleaned the turtles after an oil spill.
D.) He planted grasses that turtles eat.
Answers
Answer:B
Explanation:The project distributed green turtle eggs and hatchlings to various nesting beaches around the Caribbean and the Gulf of Mexico in an effort to encourage the growth of their dwindling populations. His conservation efforts also led him to lead campaigns against ocean pollution.
What is biology??And what does it came from??
Answers
Answer:
BIOLOGY IS THE STUDY OF LIFE
Explanation:
Answer:
Biology is studying about life and the human body. The term biology in its modern sense appears to have been introduced independently by Thomas Beddoes (in 1799)
Hope this helps!
celcia diease is a condition that prevents people from eating food products that contain glunten. Gluten is protien compound found in some foos such as whaet products. For people with celiac disease,a protein in gluten interferecs with the absorption of variuos nutrients, minerals, and vitamins. which body system is responsible for breaking down gluten
Answers
My Answer:
Small intestine. This 23-inch long intestine is essential during the digestion process. If it is damaged by gluten consumed by someone with Celcia, it will misfunction and become impaired which can lead to complications.
81. suppose that following a lava flow, pine grass (a hypothetical species) is the first species to colonize the area. chemicals produced by pine grass change the soil chemistry in the environment, but these chemicals promote subsequent colonization by later species. which model would best explain this scenario of succession? a. inhibition b. tolerance c. facilitation d. compensation
Answers
The model that best explains this scenario of succession is facilitation. Option c is correct.
In facilitation, early successional species change the environment in a way that makes it more suitable for later successional species. In this case, pine grass changes the soil chemistry to create conditions more favorable for other species to colonize the area. This is an example of positive interactions between species, where the presence of one species benefits another.
As a result, the area goes through a predictable sequence of changes, with each species creating conditions that favor the next. In contrast, the inhibition model suggests that early species prevent colonization by later species, while the tolerance model suggests that species do not affect each other's colonization. The compensation model suggests that the loss of one species is compensated by the growth of another. Hence Option c is correct.
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What does incubating bacteria mean and how and why is this done?
Please answer this plz is do at night help plz
Answers
All of the following are used to protect organisms from the toxic by-products of oxygen EXCEPT
A) carotenoids.
B) superoxide dismutase.
C) peroxidase.
D) protease.
E) catalase.
Answers
D) protease. Carotenoids, superoxide dismutase, peroxidase, and catalase are all enzymes or pigments that are involved in protecting organisms from the toxic by-products of oxygen.
Carotenoids act as antioxidants and protect cells from damage caused by free radicals. Superoxide dismutase, peroxidase, and catalase are all enzymes that break down reactive oxygen species into less harmful molecules. Proteases, on the other hand, are enzymes that break down proteins and are not directly involved in protecting organisms from oxidative stress. Therefore, the correct answer is D) protease, which is not used to protect organisms from the toxic by-products of oxygen.
The answer to your question is D) protease. All the other options, including A) carotenoids, B) superoxide dismutase, C) peroxidase, and E) catalase, are involved in protecting organisms from the toxic by-products of oxygen. These molecules help neutralize harmful free radicals and reactive oxygen species. In contrast, proteases are enzymes that break down proteins and peptides, and their primary function is not related to protecting against the toxic effects of oxygen.
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Assessment started: undefined.
Item 1
Which example is the best description of an adaptation?
a heritable characteristic that helps an organism avoid predators
a heritable characteristic that helps an organism find food
a heritable characteristic that helps an organism survive and reproduce
a heritable characteristic that evolves
Answers
Answer: a heritable characteristic that helps an organism survive and reproduce
Explanation:
PLEASE RESPOND QUICK <3
All biomolecules have the following traits execpt
A-Hydrogen elements
B-Covalent bonds
C-Nitrogen elements
D-A carbon backbone
2.
What enzyme breaks down starch in your saliva
A-Amylase
B-Trypsin
C-Lipase
D-Pepsin
3.
Which soil-based compounds do plants use to create amino acids from glucose?
A-Fluoride
B-Carbon
C-Hydrogen
D-Nitrogen
4.
What is a lipid that makes up cell membranes and is used to create hormones?
A-Protein
B-Cholesterol
C-Sucrose
D-Starch
Answers
Answer:
Most biomolecules are organic compounds, and just four elements—oxygen, carbon, hydrogen, and nitrogen—make up 96% of the human body's mass.
Explanation:
Nitrogen elements
Amylase
Nitrogen
Cholesterol
Biomolecules are the molecules that are involved in life processes.
Living organisms are composed of chemical substances called biomolecules which play various roles in the body.
Most biomolecules contain carbon, hydrogen and oxygen.
Starch digestion begins in the mouth with the action of amylase which breaks it down for easier digestion.
In the soil, amino acids are created from nitrogen using nitrogen element since amino acids must contain nitrogen.
Cholesterol is found in the cell membrane. It is a lipid and it is a component of many important hormones.
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A green plant absorbs a toxic substance that completely blocks the
production of ATP. How would this most likely affect the dark reactions?
A. The dark reactions would continue to produce oxygen.
B. The dark reactions would stop producing glucose.
C. The dark reactions would produce more carbon dioxide.
• D. The dark reactions would produce more NADPH.
Answers
Answer:
b
Explanation:
Stage _____ of NREM sleep represents the beginning of actual sleep.
A. One
B. Two
C. Three
D. Four
Answers
Answer: B. Two
Explanation:
During the first stage, your body starts relaxing and falling into sleep. This is the lightest stage of sleep. You can wake easily during this stage, and are not "fully" asleep.
During the second stage, your body deepens into it's sleep, your heart rate decreases, your body temperature decreases, and more. This is the stage that "represents the beginning of actual sleep" which is the answer to your question.
During the third stage, your body is in a deeper state of sleep. Your muscles relax further, your breathing rate slows, and more.
During the fourth stage, your heart rate and body temperature rise again. Your brain is a bit more active, and your muscles start to "wake up" slowly again.
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what are the four roles of nutrients in the body
Answers
Answer:
provide energy, contribute to body structure, and/or regulate chemical processes in the body.
Different forms/versions of a particular gene are called
Answers
Answer:
Alleles
Explanation:
Different versions of genes are alleles.
Which feature is similar in the respiratory systems of mammals and birds and distinguishes them from other terrestrial vertebrates? a. Bidirectional airflow b. Optimal use of air to support of endothermy c. Air sacs d. High efficiency to support low metabolic rates e. Parabronchi
Answers
The feature similar in the respiratory systems of mammals and birds and distinguishes them from other terrestrial vertebrates are air sacs. Option c, air sacs is the correct answer.
The respiratory system is a biological system that includes organs and structures specifically designed for breathing.
Its main function is to take in oxygen and eliminate carbon dioxide, which can be harmful when accumulated in the body.
In mammals and birds, the respiratory system is enhanced with air sacs that aid in breathing more efficiently.
Air sacs are thin-walled extensions of the lungs, which are responsible for the exchange of gases in the body.
These air sacs act as reservoirs for air, which allows mammals and birds to take in more oxygen and exhale more carbon dioxide than other land animals.
Overall, the respiratory system plays a crucial role in maintaining the balance of gases in the body and supporting the body's metabolic needs.
Therefore, option c, air sacs is the correct answer.
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Question 4 of 10
A researcher is studying how a bacterial infection might spread through a
human body. Which model could she use to simulate how it spreads through
organ systems?
A. A mathematical model showing a graph of bacterial growth rates
B. A physical model showing the bacteria at a much larger scale
C. A computer model showing how each system is affected by the infection
D. A physical model of the structure of bacterial cell and the cells
in the systems
Answers
Answer:
C
Explanation:
it makes the most sense because it will show how the organs are being infected
what is the advantage in having this number of chambers compared to organisms with fewer number of chambers?
Answers
The benefit of having this many chambers over organisms with fewer chambers is that it eliminates the need to mix the blood types before sending deoxygenated blood to the lungs and oxygenated blood to the rest of the body.
In a heart with four chambers, a septum entirely divides the left from the right. This stops the mixing of oxygenated and deoxygenated blood. This increases energy and improves oxygen supply. Numerous daily actions demand this energy.
Compared to the ventricles, the atria have substantially thinner walls. In comparison to the atria, the ventricles pump blood out at a higher pressure.
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Which part of the neuron improves the speed of the neural impulse.
Answers
As the universe continued to expand and cool after the Big Bang, atoms formed large clouds of gas, which are known as ___________.
Answers
Answer: Nebula
Explanation:is a large cloud of gas
Answer:
In the first moments after the Big Bang, the universe was extremely hot and dense. As the universe continued to expand and cool, things began to happen more slowly. for electrons to be trapped in orbits around nuclei, forming the first atoms. formed from clouds of gas around 150–200 million years after the Big Bang.
Explanation:
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