how can the h. pylori bacteria survive in the human stomach?

Answers

Answer 1

Answer:

To survive in the harsh, acidic environment of the stomach, H. pylori secretes an enzyme called urease, which converts the chemical urea to ammonia. The production of ammonia around H. pylori neutralizes the acidity of the stomach, making it more hospitable for the bacterium

Explanation:


Related Questions

Transformed bacteria are plated on LB plus ampicillin to determine which cells were successfully transformed. Which part of the pGLO plasmid is responsible for the growth of transformed cells despite the presence of ampicillin

Answers

Answer:

The gene that encodes ampicillin resistance.

Explanation:

The plasmid would contain the ampicillin resistance gene which gets expressed in the presence of ampicillin.

what is the structural function labelled M?​

Answers

Answer:

your answer is correct it is B

connecting the bone to the muscle

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Which statement explains why ammonites are a good example of an index fossil?

Answers

Answer:

Ammonites existed only in the oceans.

Explanation:

Index fossils serve as a relative dating marker for geologic time periods and the rocks formed at those times. The fossils are of species that lived for only a short while, though that could be millions of years, and were widespread on the Earth. Ammonites are good index fossils for several reasons. First, they are easily identified by their spiral shells.

The statement explains why ammonites are a good example of an index fossil

Ammonites existed only in the oceans.

What is an Index fossil?

Index fossil are plants and animals which have been preserved in rock

surfaces over a long period of time and are usually characteristic of a

particular geographical location.

Examples of Index fossils include:

Ammonites Brachiopods, Graptolites NanofossilsTrilobites

Ammonites are animal fossils which are characteristic of the marine

environment.

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Which best describes convention

Answers

Answer:a way in which something is usually done, especially within a particular area or activity.

Explanation:"the woman who overturned so many conventions of children's literature"

4. Arrange Write the following steps in the order in which they occur during glycolysis

A six-carbon molecule is broken down into two three-carbon molecules.

Two NADP molecules are converted into two NADH molecules.

Two phosphate groups from two ATP molecules are joined to glucose.

Two three-carbon molecules are converted into two Folecules of pyruvate as four
molecules of ATP are produced.

Answers

The correct order of glycolysis reactions is:

Two phosphate groups from two ATP molecules are joined to glucose.Two NADP molecules are converted into two NADH molecules.A six-carbon molecule is broken down into two three-carbon molecules.Two three-carbon molecules are converted into two molecules of pyruvate as four  molecules of ATP are produced.

During glycolysis, the glucose molecule is converted to Glucose-6-phosphate as a result of phosphorylation. The phosphate group from ATP is joined to the glucose molecule by an enzyme known as hexokinase.

The glucose-6-phosphate then undergoes isomerization to become fructose-6-phosphate which is then phosphorylated again by the hexokinase enzyme to become fructose-1,6-biphosphate.

An aldolase enzyme converts fructose-1,6-biphosphate to one molecule of glyceraldehyde-3-phosphate and one molecule of dihydroxyacetone phosphate. The latter is then converted to another molecule of glyceraldehyde-3-phosphate.

A dehydrogenase enzyme converts glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate with NADH being generated from the reduction of NAD+.

A kinase enzyme then converts 1,3-bisphosphoglycerate to 3-phosphoglycerate with ATP being generated from ADP. A mutase enzyme quickly converts the 3-phosphoglycerate to 2-phosphoglycerate while an enolase enzyme converts the latter to phosphoenolpyruvate.

Finally, a pyruvate kinase enzyme converts phosphoenolpyruvate to pyruvate with another ATP being generated.

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Scientists can study the human genome using DNA fingerprinting.
DNA fingerprinting allows scientists to

B. break the hydrogen bonds in a gene to allow DNA to replicate itself.

c. determine the location of an abnormal gene on an individual's
chromosome.

A. prevent a gene from matching complementary bases onto a strand of
RNA.

Answers

Answer:

your answer is C.

Explanation:

DNA fingerprinting allows researchers to determine the location of an abnormal gene in a person's chromosomes.

What are the steps in DNA fingerprinting?

DNA fingerprinting is a laboratory technique used to determine the likely identity of a person based on the nucleotide sequences of certain regions of a person's DNA that are unique to individuals.

DNA fingerprinting was used early in legal disputes, particularly in solving crimes and establishing paternity. It is also used to detect inherited genetic diseases and can be used to identify genetic matches between tissue donors and recipients.

In DNA fingerprinting, researchers collect DNA samples  from various sources, such as hair from  crime scenes and blood from  victims and suspects. They then narrow down scattered sections of repetitive DNA in these samples.

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What two types of organic molecules make up carbohydrates?

Answers

Answer:

carbon and hydrogen

Explanation:

Have a nice day

What molecule is the source of information for transcription.

Answers

DNA is the molecule, which is the source of information for transcription.

• During the process of transcription, RNA polymerase is an enzyme, which is accountable for copying a sequence of DNA into a sequence of RNA.

• The RNA polymerase monitors the phenomenon of transcription.

• At the time of transcription, the information is stored within a molecule of DNA, which is further copied into a new molecule of messenger RNA.

Thus, the correct answer is DNA.

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The use of biological processes to protect and repair the environment from negative human impacts is part of a growing area of biological applications called .

Answers

Bioremediation is that process which use the biological organisms to protect and repair the environment.

Bioremediation refers to the use of biological agents or processes in order to protect and repair the environment from negative human impacts. This phenomenon depends on stimulating the growth of specific type of microbes that utilize contaminants such as oil, solvents and pesticides as a sources of food and energy.

These microbes has the ability to use these harmful substances as a food and convert these contaminants into water as well as harmless gases like carbon dioxide so we can conclude that bioremediation is that process which use the biological organisms to protect and repair the environment.

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state the functions of vitamin d

Answers

Answer:

For maintaining healthy bones

It also helps the intestines to stimulate and absorb calcium

Answer:

Explanation:

Vitamin D is both a nutrient we eat and a hormone our bodies make. It is a fat-soluble vitamin that has long been known to help the body absorb and retain calcium and phosphorus; both are critical for building bone.

What are the three types of posttranscriptional processing?.

Answers

Answer:

5' capping, addition of the poly A tail, and splicing.

Explanation:

I got it right on the test!!!! I hope this helps.

Where in the cell would you expect to find the greatest activity of the pyruvate dehydrogenase complex?

Answers

Answer:

Mithochondria

Explanation:

In eukaryotes, the pyruvate dehydrogenase complex, like the enzymes for citric acid cycle and oxidation of fatty acids, is located in the mitochondrion, where is associated with the surface of the inner membrane facing the matrix.

In the cell, mitochondria are the place where it expects to find the greatest activity of the pyruvate dehydrogenase complex.

What is the pyruvate dehydrogenase complex?

The three-enzyme complex known as the pyruvate dehydrogenase complex (PDC) is responsible for pyruvate carbonylation, which converts pyruvate to acetyl-CoA.

This complex connects the glycolysis metabolic pathway to the citric acid cycle by allowing acetyl-CoA to be used to perform cellular respiration.

The enzyme pyruvate dehydrogenase catalyzes the reaction between pyruvate and a lipoamide, which yields acetylated dihydrolipoamide and carbon dioxide. The process requires the coenzyme thiamine pyrophosphate.

Therefore, the site where you find the greatest activity of the pyruvate dehydrogenase complex is mitochondria.

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!!!!NEED HELP NOW!!!!


Describe the structures within cells that govern heredity, and describe where they are located. Make sure to have 5 sentences which have to be all on topic use great grammar along with great vocabulary usage.


!!PLEASE ANSWER CORRECTLY!!

Answers

Within cells, the long strands of DNA form condensed structures called chromosomes. Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes. cell nucleus
DNA is the hereditary material in humans and almost all other organisms. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA). DNA contains the code for building and maintaining an organism.

Answer:

The structure that is responsible for the governance of a cell is the DNA, which is located in the nucleus of the cell.

Explanation:

DNA: It is the genetic material containing genetic information.It is present in the chromosomes inside the nucleus. The genetic information of DNA is stored as code in the four nucleobases namely Adenine, Guanine, Cytosine, and Thymine. The most unique feature of the DNA is that it is self-replicated and makes similar copies of itself. DNA is a double helical structure found in all living organisms including some viruses.In Eukaryotes along with the nucleus, DNA is also present in Mitochondria and Chloroplasts.

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give 3 exampels of where potential energy was converted to klinetic energy

Answers

Answer:

1. A rock falling off a cliff

2. Roller coaster starts plummeting from the top

3. Pendulum swings from the top to the middle, once it starts the second up swing the kinetic turns back into potential energy

Answer:

1. Pushing a large rock down a hill.

2. Kicking a stationary soccer ball.

3. Releasing a taut rubber band

I don't know how varied your class's examples of potential energy have been so far, but there are many kinds if you need more variety.

Explanation:

You can just use your imagination for these if you want to! Potential energy is the energy that an object can have, its potential to have energy (just like it says), while kinetic energy is the energy of a moving object. All you need to do is take a still object and apply force to it.

describe the path that oxygen travels when you breathe.

Answers

Answer:

The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell. When oxygen passes into the bloodstream, carbon dioxide leaves it.

Explanation:

The green traits (which is hidden by the yellow trait) is considered
(Dominant)
(sneaky)
(Alternative)
(Recessive)

Answers

Answer:

probably the last one... Recessive

Explanation:

mark me brainliest if correct :D

Answer:

D-(Recessive)

Explanation:

I took a quiz with this question, and it is correct :)

Match each part of the neuron with the correct label.

Answers

Answer:

yes. those are labeled correctly

Explanation: post protected

this is correct it is labeled correctly!

A network of interwoven anterior rami of spinal nerves is a:

Answers

The answer is plexus

Which of the following statements is TRUE?

Paraplegia may occur when traumatic injury occurs along the upper vertebral column C1 to C7.
Quadriplegia may occur when traumatic injury occurs along the upper vertebral column C1 to C7.
Paraplegia is paralysis of everything below the neck.
None of the above

Answers

Answer:

b. Quadriplegia may occur when traumatic injury occurs along the upper vertebral column C1 to C7.

Explanation: is correct

Answer:

B

Explanation:

(thank you sunrise you've helped me with like 4 units now)

Greenhouse gases include carbon dioxide and methane.

Answers

Answer:

true

Explanation:

Yes! That’s true, but there is also Nitrous Oxide & Fluorinated gasses HOWEVER they are a lot less abundant. Carbon dioxide and methane are the 2 big ones.

NO LINKS. PLZZ HELP WILL MARK BRAINLIEST AND 55 POINTS!

Which nucleic acid moves the code for protein synthesis from the nucleus to the ribosomes?

A. dRNA

B. tRNA

C. rRNA

D. mRNA

Answers

Answer:

mRNA

Explanation:

enjoy mate

Answer:mRNA

Explanation: Just had this unit.

What type of muscle contracts and relaxes to control the movement of the contents within its structures

Answers

Skeletal muscles mechanically move the body. Messages from the nervous system cause these muscle contractions.

A chromosomes contains ________ and ___________organic molecule​

Answers

Answer:

the answer is

Explanation:

DNA and RNA

vai trò của nước đối với quang hợp là

Answers

Answer:

At a fundamental level, water provides electrons to replace those removed from chlorophyll in photosystem II. Also, water produces oxygen as well as reduces NADP to NADPH (required in the Calvin cycle) by liberating H+ ions.

Explanation:

When looking at the organization of the human body, smaller units lead to progressively larger units. For instance, groups of atoms are called molecules, groups of cells are called _______________, and various organs that work in coordination are called organ systems.

Answers

Answer:

Tissues because tissue is made out of celss

Bacteria such as e. coli and salmonella produce invasins that bind host cells, thus causing the cells to:

Answers

Answer:

kill cells and tissues outright

Explanation:

Sometimes bacteria multiply so rapidly they crowd out host tissues and disrupt normal function. Sometimes they kill cells and tissues outright. Sometimes they make toxins that can paralyze, destroy cells' metabolic machinery, or precipitate a massive immune reaction that is itself toxic

Acrroding to http://needtoknow.nas.edu/id/infection/how-pathogens-make-us-sick/

Animals are helpless when their natural habitat is damaged by floodsor forest fires. What are the ways to prevent these from occurring sothat animals do not suffer?

Answers

Answer:

Obey local laws regarding open fires, including campfires, Keep all flammable objects away from fire, have firefighting tools nearby and handy, Carefully dispose of hot charcoal,

Drown all fires, Carefully extinguish smoking materials, do NOT use fireworks in heavily wooded areas, use in large, open areas with concrete flooring.

Explanation:

objects are brought into focus on the retina by changes in the curvature and thickness of the

Answers

hi the answer is lens

Objects are brought into focus on the retina by changes in the curvature and thickness of the lens.

What is eye lens?

The lens basically directs light rays onto the retina. The lens is clear and replaceable if necessary. As we age, our lenses deteriorate, necessitating the use of reading glasses.

The lens is normally clear and is located behind the iris. The pupil directs light to the lens.

Small muscles attached to the lens can cause the lens to change shape, allowing the eyes to focus on objects that are close or far away.

Light bends (refracts) and focuses on the retina at the back of the eye as it passes through the lens.

The lens's thickness and curvature can be adjusted to focus on objects at various distances and ensure that the image is as clear as possible (this process is known as accommodation).

Thus, eye lens helps to focus the object.

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What does the nucleus do.

Answers

The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information.

The cell theory states that
(a) all organisms are made of one or more cells.
(b) all cells come from already existing cells.
(c) all the life functions of organisms occur within cells.
(d) all of the above

Answers

Answer:

All of the above

Explanation:

hope this helps

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