6. An important role of bicarbonate ions in human blood is to
(A) carry oxygen
(B) act as a buffer
(C) bind with hemoglobin
(D) supply cells with carbon
(E) increase the rate of cellular respiration

Answers

Answer 1

Bicarbonate ions present in body performs a variety of functions, in blood it carries carbon dioxide. Its other functions include keeping the balance of acids and bases in the body. It acts as a buffer.

What is a buffer?

Buffer is a type of solution that resists pH change either by the addition of acid or base.

Bicarbonate is a base, which the body requires to keep a normal acid-base (pH) balance.

This balance prevents the body from having too much acid means maintaining buffer. The lungs and kidneys helps to keep a normal blood pH by removing excess acid.

Thus, the correct option is B.

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Related Questions

Nervous System
STIMULUS – RESPONSE PERFORMANCE LAB 38 points

PURPOSE: To measure response time after visual, auditory, and tactile stimuli have been practiced.
MATERIALS: meter stick or a yard stick (If you don’t have one - something about three feet long and stiff will work. You could get cardboard for example and mark off the distances on it..)




PROCEDURE:

Place your arm on a desk or table top with your hand resting on the edge. Your thumb and forefinger need to be projecting over the edge and about 2cm apart.
Your LC, friend or family member will hold the meter stick in a vertical position so that the zero end of the meter stick is halfway between your thumb and forefinger. The holder of the stick will drop it without warning you. You are to catch the meter stick as soon as possible after it has been released. Record on the data table the number of centimeters the meter stick dropped before you caught it.
Repeat the procedure 9 more times.
Repeat the procedure in steps 2 and 3 but this time close your eyes and have your LC, friend or family member tell you the moment the meter stick is dropped. Repeat this 9 more times and record the data in the data table.
Repeat the procedure in steps 2 and 3 but this time use a tactile stimulus. Have your LC, friend or family member touch you as soon as the meter stick is dropped. Be sure your eyes are closed. Repeat 9 more times and record your data.
Repeat the procedure in steps 2 and 3 but this time your LC, friend or family member will try to distract you as they drop the meter stick. Repeat 9 more times and record your data. 20 pts


Signal/Distance
1
2
3
4
5
6
7
8
9
10
Visual Distance (cm)




















Auditory Distance (cm)




















Tactile Distance (cm)




















Distraction Distance (cm)























ANALYSES AND CONCLUSIONS
1. How did the auditory response time compare to the other signals? 2pts



2. How did the tactile response time compare to the other signals? 2 pts



3. How did your response time change with practice? 2 pts



4. Rank the response time from the slowest to the fastest. 2 pts



5. From these results draw a conclusion about practice with regard to stimulus – response time. Remember to state your claim, use evidence, and then make a conclusion. 10 pts

Answers

Answer:

Explanation:

Place your arm on a desk or table top with your hand resting on the edge. Your thumb and forefinger need to be projecting over the edge and about 2cm apart.

Your LC, friend or family member will hold the meter stick in a vertical position so that the zero end of the meter stick is halfway between your thumb and forefinger. The holder of the stick will drop it without warning you. You are to catch the meter stick as soon as possible after it has been released. Record on the data table the number of centimeters the meter stick dropped before you caught it.

Repeat the procedure 9 more times.

Repeat the procedure in steps 2 and 3 but this time close your eyes and have your LC, friend or family member tell you the moment the meter stick is dropped. Repeat this 9 more times and record the data in the data table.

Repeat the procedure in steps 2 and 3 but this time use a tactile stimulus. Have your LC, friend or family member touch you as soon as the meter stick is dropped. Be sure your eyes are closed. Repeat 9 more times an


An enzyme controlled reaction was carries out at 36°C. After 3 minutes, 240 cm' of product had been
produced. Calculate the rate of reaction is cm/s

Answers

3minutes x 60 = 180secs
240/180= 1.3333 cm/s

What happens to the shape of a wave when on a string when you increase the frequency

Answers

Answer:The wavelength decreases

Explanation:

because im a god

Select the correct answer from each drop-down menu. when a cat drops from a tree to the ground, the conversion of takes place. then cat runs up behind a mouse to obtain its food. after eating its prey, the conversion of takes place inside the cat’s body.

Answers

The correct answer from each drop-down menu is gravitational force, potential energy to kinetic energy, and then conversion of chemical energy to mechanical energy take place in this order.

What are the forms of energy conservation?

During the energy transformation steps, when there is no frictional dissipation, we say that energy is conserved. That is, all potential energy is transformed into kinetic energy, and vice versa. The sum of the kinetic and potential energies of a system is called mechanics.

In this case, When a cat drops from a tree to the ground follows the gravitational force, while the conversion of up behind a mouse to obtain its food is the process of converting potential energy to kinetic energy. And at last, after eating its prey, the conversion inside the cat's body takes place the chemical energy to mechanical energy.

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Which act regulates the handling of
tailings from mining operations?
A. Endangered Species Act
B. Solid Waste Disposal Act
C. Occupational Health and Safety Act

Answers

Answer:

this is my answer The MMDR Act

Explanation:

this my explanation

The MMDR Act empowers the central government to issue directions to the State governments to ensure sustainable development and exploitation of minerals to reduce adverse air, ground, water and ambient noise impacts

Answer: B. Solid Waste Disposal Act

Explanation:

why do cells need to regulate what goes in and out of them?

Answers

my Answer:

These molecules are essential for living things. The cell membrane controls what goes in and out by having protein channels that act like funnels in some cases and pumps in other cases. Passive transport does not require energy molecules and happens when a funnel opens in the membrane, letting molecules flow through
Explanation:
am i right? it would be helpful if u would rate so i can adjust my answer

What is a pathogen?………..

Answers

Answer:

A pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence. Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.

A pathogen is an organism that causes disease.

Explanation:

A pathogen is usually defined as a microorganism that causes, or can cause, disease. We have defined a pathogen as a microbe that can cause damage in a host.

For anyone who answers ill give points!

Answers

Answer:

B

Explanation:

facilitated diffusion requires an ATP, which means it DOES take up energy

Pleasee help

how is climate change a feedback loop ?

Answers

Answer:

tbh i dont even know

Explanation:

Answer:

Global warming itself isn’t a feedback loop, it is caused by radiative forcing an induced response to the emission of greenhouse gases by humans. There are both positive and negative feedback loops that exist in global warming and climate change. Overall studies show the climate temperature response is higher than that implied by radiative forcing response of the emissions alone - so that means that the “positive” (reinforcing) feedbacks are dominating. Although many feedbacks are already in play there are some big potential reinforcing feedbacks that haven’t really started yet, so we have that to look forward to!

Describe what pollination is and how it
happens

Answers

Explanation:

Pollution is:

the presence in or introduced into the environment of a substance or thing that has harmful or poisonous.

typically caused by man made things, like factories when they leak pollutant air into the atmosphere and other items like ships when they leak oil pollutants into the waters.

How are Glucose, Proteins, and Fats used to make new molecules? And what types of molecules are made?

Answers

Answer:

Sometimes known as glycans, there are three common and principal types of polysaccharide, cellulose, starch and glycogen, all made by joining together molecules of glucose in different ways. It has been estimated that 50% of the world's organic carbon is found in one molecule; cellulose.

Describe the energy conversions that occur as a microwave oven heats a cup of water. Give at least two energy conversions. Explain how these energy conversions affect the process of heating water particles in a cup using a microwave . Enter your answer in the box provided .

Answers

The energy conversions that occur as a microwave oven heats a cup of water is  Electrical energy to Heat energy.

Energy conversions

The energy conversions that occur as a microwave oven heats a cup of water is listed below:

Electrical energy to Heat energy

The electrical energy powers the microwave which in turn heats up the water by converting electrical energy into heat energy that heats up the water particles in a cup in a microwave.

Thus, the energy conversions that occur as a microwave oven heats a cup of water is  Electrical energy to Heat energy.

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When does the amount of photochemical smog peak?
a. dawn
b. midday
c. twilight
d. night

From what ive found it is morning and afternoon so I have no idea what to choose

Answers

Most likely afternoon as that is when the most production will happen.
Answer: midday

Figure 1. Photochemical smog over Shanghai. Photochemical smog is a type of smog produced when ultraviolet light from the sun reacts with nitrogen oxides in the atmosphere. It is visible as a brown haze, and is most prominent during the morning and afternoon, especially in densely populated, warm cities

Hope this helps :)

Which of the two sequences of rocks, a-d and e-g, was disturbed by crustal movements after its deposition?

Answers

Answer:

Sequence A-D was disturb by crustal movement after it was deposition. We have evidence in given cross section that sequence A-D was disturb by crystal movement just see above this sequence there is conglomerate bed which indicates it is uncomformity and that below uncomformity plane all beds are inclined so it clear evidence that sequence A-D got disturbance by crustal movement.

Explanation:

Sequence order and principal are given below.

one can order the event in any given cross section on the basis of apply some principal like order of super position, principal of cross cutting relationship, principal of inclusion, principal of original horizontality etc. Order of superposition tell us that if rock is undeformed then older rock would be at bottom and younger at top, principal of cross cutting relationship tell if some igneous body intruded in some rock layer so it mean that layer is older than age of intrusion.

How do Kepler’s laws describe planetary orbits?

Answers

1) Planets move in elliptical orbits with the sun at one focus.

2) Planets speed up when they are closer to the sun because of the sun's gravitational pull.

PLEASE HELP ME THIS IS DUE BY 11:59 PM

Answers

Answer: boom

Explanation: hope this is right :)

what are two ways plants compete against each other

Answers

Answer:

One thing I know from school is that plants can end up taking all of the water from other plants if you don’t spread them out enough. They also can end up growing over another plant which can eventually if not fixed strangle the other plant and that ends up killing it.

Explanation:

these are my own examples I’m learning about this isn’t science or I was earlier this year which is why I know this.

Answer:

Two different ways that plant compete against eachother is...

1. Competing for food, light, water etc.

2. If you grow two plants next to eachother they will take over eachother's sunlight and start to shade eachother.

Explanation:

I learned this just a few months ago in my biology class.

Why do baby bones contain more cartilage than an adult's?

Answers

Babies are less bony for a good reason; if they were fully “hardened”, it would make delivery almost impossible. Infants’ bodies need to be extremely soft and limber so that they can be born in the first place! Babies are born with more cartilage (than bone), but it gradually turns into bone over a period of time through a process called endochondral ossification. This is a vital part of the developmental stages of a fetus and leads to the creation of bone tissue in the body. As the baby grows, cartilage is replaced by bone matrices. Calcium salts (that babies get from their diet) are laid to form hardened bones. This is the reason why adults have fewer bones than babies because, for babies, many small bony segments fuse together to form a single bone.

Reference citation credit to scienceabc.com

What happens to the distance between molecules when a substance changes from a liquid to a gas? Why?

Answers

When a substance changes from a liquid to a gas, the distance between molecules increases.

Explanation:

The distance between molecules increase because vaporization occurs. During the process of vaporization, the liquid molecules acquire higher kinetic energy, which means they move more quickly and freely through the substance.

The 1918 Influenza epidemic killed between 50 million and 100 million people worldwide. The epidemic happened near the end of World War I. More people died from the influenza epidemic than from the war. Which of the following explains why this virus was so deadly worldwide?

Answers

The following explains why this virus was so deadly worldwide was the cause of its worldly The 1918 Influenza epidemic killed among 50 million and a hundred million humans worldwide.

Which of the subsequent explains why this virus become so lethal worldwide?

In the United States, the flu's toll become a good deal lower: a 1. five percent decline in GDP and a 2.1 percentage drop in consumption. The decline in financial hobbies mixed with expanded inflation led to huge declines withinside the actual returns on shares and short-time period authorities bonds.

This become truly the case with the influenza pandemic of 1918-1919, which become one of the worst contagion crises withinside the records of humankind.

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Like the camel, many animals that live in soft sandy areas have large wide feet compared to their body size. The
large feet are an advantage in these environments because they -
are rapidly toughened by sharp sand grains
distribute body weight over a large area
allow rapid digging in the sand
Dreduce the vibrations caused by walking

Answers

Answer:

distribute body weight over a large area

Explanation:

This one's fairly simple. If you have large feet, then your body weight is distributed over a large area (you don't sink as much in sand). If your toes were small, massive body weight would sink the feet into sand.

What is produced by translation

Answers

any kind of energy is produced by translation

I can be good or bad. When I am good, I help you digest food and compete against pathogens for colonization sites.
archaebacteria
eubacteria
protist
fungi
plant
animal

Answers

C have a good day bbg

Which process do scientists think provided Earth with an oxygen-rich atmosphere?


photosynthesis


respiration


radiometric dating


spontaneous generation

Answers

Answer:

Photosynthesis

Explanation:

Tiny organisms known as cyanobacteria, or blue-green algae conducted photosynthesis using sunshine, water and carbon dioxide to produce carbohydrates and oxygen.

Weather is——

A- short-term and affects a local region

B- long-term and affects a local region

Answer ASAP and please be correct

Answers

A- short term and affects a local region

PLEASE HELP FAST I AM ON A TIMER THANK YOU!!

When we analyzed haplotypes detected in mtDNA from the various sites where juncos lived, we found patterns in the data. We noticed that the more time that passed, the more mutations occurred. Mutations in DNA lead to differences in the juncos. Examine the data from the site below and circle the best claim.

(PLEASE LOOK AT PICTURE TO SEE THE DATA)

A.) Junco A and Junco G are very closely related—their DNA does not show many mutations.

B.) Junco A and Junco F are very closely related—their DNA does not show many mutations.

C.) Junco A and Junco N are not very closely related—their DNA shows many mutations.

D.) Junco A and Junco M are not very closely related—their DNA shows many mutations.

Answers

Answer:

The answer is c. Here is why. Look at my explination below

Explanation:

When you look at the table you can see which one is most looked at, and use the answer to find the data table, use that and you shall get your answer, my friend!

which type of drosophila probably changed the least over time?

Answers

The type of Drosophila that probably changed the least over time is the Drosophila melanogaster.

What do you mean by Drosophila?

A Drosophila may be defined as a fruit fly that serves as one of the most important model organisms in the field of biological sciences due to its large chromosomes, high reproduction rate, and various varieties.

As compared to Drosophila willistoni, Drosophila equinoxialis, Drosophila equinoxialis caribbensis, etc. Drosophila melanogaster changed very least over time after analyzing its evolutionary pathway.

It is because it may consist of a large chromosome but a simple arrangement of genes, its well-specified segment polarity genes, pair-rule genes, and maternal effect genes.

Apart from this, it may also be because of less natural selection applied to Drosophila melanogaster.

Therefore, the type of Drosophila that probably changed the least over time is the Drosophila melanogaster.

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Need help answering packet

Answers

1) B

2) A

3) D

4) C

5) Assuming there is no 4th option then A

Identify the level(s) of protein structure present in this molecule. Select all that apply. primary secondary tertiary quaternary

Answers

The the levels of protein structure in the molecule would be tertiary and quaternary structures.

What are the levels of protein structure?

The levels of protein structure are as follows:

primary secondary tertiary, and quaternary structures

The primary structure is the peptide bonds of the amino acids.

The secondary structure is the alpha and beta helices.

Tertiary structure are folds in the protein structure.

Quaternary structure is the association of protein chains.

Therefore, the levels of protein structure in the molecule would be tertiary and quaternary structures.

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How do you think water can become polluted?

Answers

Ways water can get polluted :-

1) Factories near water bodies can release their emissions into water which in turn pollutes water

2) Farm lands chemicals can be swept towards water resource

3) water people litter in water bodies due to plastic, it becomes polluted

Hope this helps :)
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