Which of these particles is able to pass freely through a cell membrane?
O A. A nucleic acid molecule
B. A polysaccharide molecule
O c. A disaccharide molecule
O D. A carbon dioxide molecule

Answer: 3

Explanation:

:)

Answer:

Organ 1

Explanation:

The stomach uses gastric juices/acids to dissolve our ingested food during the digestion process.

All cells in the body maintain a potential difference in voltage across their membrane, called the "membrane potential", in which the inside of the cell is negatively charged in comparison to the outside of the cell.

The cell membrane acts as a selectively permeable barrier that separates the inside of the cell from its external environment.

The membrane potential is a difference in electrical charge that exists across the cell membrane, where the inside of the cell is more negatively charged than the outside. This difference in charge is primarily maintained by the movement of ions across the cell membrane, where positively charged ions (such as sodium ions) move into the cell, and negatively charged ions (such as chloride ions) move out of the cell.

This movement of ions is often driven by concentration gradients and membrane pumps that actively transport ions against their concentration gradient. The membrane potential is important for many cellular processes, such as the generation of action potentials in nerve cells and the transport of molecules across the cell membrane.

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Answer:

red bricks

Explanation:

The best or cool material to use in the area that will best represent temperature is red bricks.

Temperature is the measure of the degree of the hotness or coldness of the body.

A cool color in terms of design to represent temperature is red.

Thus, we can conclude that the best or cool material to use in the area that will best represent temperature is red bricks.

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Answer:

B

Explanation:

Phosphodiester linkage joins 3' carbon atom of one sugar molecule and 5' carbon atom of another carbon atom.

Answer:

division, class, order, family, genus, species.

Explanation:

Answer:

2.15

Explanation:

The function f(x) = 10 + 250x represents the total cost, in dollars, for renting a vacation house for x days.  In this case, f(10) represents the cost of renting the house for 10 days, which can be calculated as 10 + 250(10) = 2510 dollars. Option 4 is correct.

To find out what f(10) represents, we simply substitute 10 for x in the given function:

f(10) = 10 + 250(10)

f(10) = 10 + 2500

f(10) = 2510

This function can be used to calculate the total cost of renting the house for any number of days, making it a useful tool for budgeting and planning purposes. Hence option 4 is correct.

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--The complete Question is, What does f(10) represent?

The total cost f(x), in dollars, for renting a vacation house for x days is shown: f(x) = 10 + 250x --

The four major classes of biomolecules are carbohydrates, lipids, proteins and nucleic acids. These biomolecules are fundamental for the functioning of all biological systems.

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Answer:

The body floats on water

The body decays and form manure

Answer:

1.the part of an antigen molecule to which an antibody attaches itself.

2.A virus is an infectious agent that can only replicate within a host organism. Viruses can infect a variety of living organisms, including bacteria, plants, and animals. Viruses are so small that a microscope is necessary to visualize them, and they have a very simple structure.

3. Vaccination is a simple, safe, and effective way of protecting you against harmful diseases

immunity: Protection against a disease

C0VID-19 mRNA vaccines give instructions for our cells to make a harmless piece of what is called the “spike protein.” The spike protein is found on the surface of the virus that causes C0VID-19. First, C0VID-19 mRNA vaccines are given in the upper arm muscle.

Explanation:

Answer:

The Answer Is C

Explanation:

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Have A Great Day

~Zero~

Answer:

1. Glycolysis

2. Krebs cycle

3. Electron transport chain

Explanation:

Sorry for being late. Yet I hope it helps

Answer:

\(\huge\boxed{Alkane.}\)

Explanation:

The given compound is an alkane because all the bonds between carbon are single. Alkanes have all single bonds and are thus called saturated hydrocarbons.

\(\rule[225]{225}{2}\)

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The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell is approximately 4 moles of ATP.

Since there are 2 moles of mitochondrial NADH, the total ATP yield would be around 4 to 6 moles of ATP. However, the most accurate option among the given choices is 4 moles of ATP.

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Answer:

Images

Books

News

Shopping

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Maps

Flights

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All filters

1-Water is passively transported into the roots and then into the xylem. 2-The forces of cohesion and adhesion cause the water molecules to form a column in the xylem. 3- Water moves from the xylem into the mesophyll cells, evaporates from their surfaces and leaves the plant by diffusion through the stomata.

Answer:

The male's genotype is homzygous short (LL)

Explanation:

This question involves a single gene coding for hair length in guinea pigs. The allele for short hair (L) is dominant over the allele for long hair (l). This means that a heterozygote will have short hair (Ll) while a guinea pig with long hair will have genotype ll.

According to this question, a female guinea pig with long hair (ll) mates and have all heterozygous offspring (Ll). This means that the male guinea pig provided only the allele for short hair (L) that made the offsprings all short. In other words, the male's genotype is LL i.e. homzygous short.

Answer:

The electron transport chain (ETC) is a series of protein complexes located in the inner membrane of the mitochondria that transfer electrons from electron donors to electron acceptors via redox reactions. As a result of the ETC, a proton gradient is formed across the inner mitochondrial membrane, which drives ATP synthesis by the enzyme ATP synthase. The ATP produced through oxidative phosphorylation is the primary energy source for most cellular processes.

Explanation:

The electron transport chain (ETC) is the final step of aerobic cellular respiration and is where the majority of ATP is generated. As electrons move through the ETC, they release energy that is used to pump hydrogen ions across the inner mitochondrial membrane, creating an electrochemical gradient. This gradient powers ATP synthase, which generates ATP by adding a phosphate group to ADP. In summary, the electron transport chain results in the production of ATP, which is the primary source of energy for cellular processes.

The three biomolecules that are used for making ATP are Lipids (fats) , Carbohydrates and Proteins

The biomolecules also known as biological molecules serve a wide range of activities and they vary in shape and their size . It is also considered  essential to life because they help organisms develop, survive, and propagate. The biomolecules interact with one another  which play a role in the development of organisms .

There are four types of biological molecules which are carbohydrates which is used as an energy source , lipids which is used for storage and support , proteins is used for supporting essential vital functions and amino acids are the developing elements that make up proteins and nucleic acids for storing genetic information .

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Cells tolerate higher rates of error in RNA synthesis because many copies of that RNA will be made, and only some of them have errors, which means that a high number of normal copies are also made, being enough to overcome and correct the problem. Another point is that DNA molecules are temporarily inherited. When it comes to errors in DNA synthesis, the mutation can be permanent if it`s not corrected until the next cell division, which makes errors in DNA synthesis more dangerous and with more consequences than in RNA synthesis, leading the cell to tolarate only a lower rate of errors.

Respiration and Photosynthesis are almostopposite processes because photosynthesis removes carbon dioxide from the atmosphere while respiration puts back carbon dioxide.

Jan Ingenhousz, (born December 8, 1730, Breda, Netherlands—died September 7, 1799, Bowood, Wiltshire, England), Dutch-born British physician and scientist who is best known for his discovery of the process of photosynthesis, by which green plants in sunlight absorb carbon dioxide and release oxygen.

During photosynthesis, carbon dioxide, a gas, is combined with water and solar energy, and converted to carbohydrates, a solid. Formation of carbohydrates is a chemical way to store the sun's energy as “food.” Carbohydrates produced from photosynthesis provide energy for all plant growth and maintenance.

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B. the pseudocoelom that acts as a hydro skeleton causes the characteristic thrashing motion of nematodes.

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Answer: B. the pseudocoelom that acts as a hydroskeleton

Explanation:

The correct option is D, as epidemiological studies showing that individuals with the CFTR mutation have a higher risk of developing respiratory infections and other complications provide support for the idea that the mutated form of the CFTR protein is harmful to humans.

F508del is the most prevalent CFTR mutation, seen in around 70% of patients with CF. The deletion of three base pairs in the CFTR gene results in the lack of an amino acid termed phenylalanine, abbreviated F, in the CFTR protein.

Recessive diseases include cystic fibrosis.

A mutated variant of the CFTR protein is dangerous. Individuals who inherit the mutant variant of the gene are more likely to experience major health issues.

Option D is accurate because it implies that epidemiological research supporting the hypothesis that the mutant version of the CFTR protein is detrimental to humans would demonstrate that people with the CFTR mutation have a higher chance of having respiratory infections and other issues. This is consistent with the widely held belief that the CFTR mutation has detrimental effects on health and causes problems with cystic fibrosis.

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The complete question is: Which of the following types of evidence would provide support for the idea that the mutated form of the CFTR protein is harmful to humans?

A. Studies showing that individuals with the CFTR mutation have a lower risk of developing respiratory infections and other complications.

B. In vitro studies showing that the mutated CFTR protein functions normally in the cell membrane, leading to normal ion transport.

C. Animal studies demonstrating that mice or other model organisms with the CFTR mutation have no symptoms or pathologies related to cystic fibrosis.

D. Epidemiological studies showing that individuals with the CFTR mutation have a higher risk of developing respiratory infections and other complications.

Answer:

Ampicillin in a plate do as to help in maintaining ampicillin resistance plasmid in the growing medium

Explanation:

Ampicillin is an antibiotics that help to kill E.coli bacteria .

While growing bacteria in a plate or growing medium, it is important to add ampicillin to the plate so to maintain ampicillin resistance plasmid.

The absence of ampilicin, the bacteria will lose their resistance after they might have gone through some cell divisions and any bacteria that doesn't have resistance plasmid will be more vigorous than those that have and will outcompete them

CT scans, X-rays, and digital reconstructions to study the internal and external structures of fossils without damaging them.

A CT scan, also known as computed tomography, is a medical imaging test that uses X-rays and computer technology to create detailed cross-sectional images of the body. CT scans can provide more detailed information than traditional X-rays and can be used to diagnose a wide range of medical conditions, including injuries, infections, and cancers. CT scans are non-invasive and are typically performed in a hospital or imaging center.

They can also use molecular biology techniques to study the DNA of organisms and determine how they are related to one another. These studies provide insights into the evolutionary history of different species and how they have adapted over time.

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Answer:

Proteins are responsible for the mass and fat of much of our bodies (and other organisms). The instructions for making protein are encoded in DNA. These genes provide the sequence of building blocks known as nucleotides. This string of amino acids then folds into different shapes. The structure of proteins determines what a molecule can do. Proteins contain carbon, hydrogen, oxygen, and nitrogen. ​

Explanation:

Kindly pardon me: I ain't so sure of the first two answers.

The correct option is 2: Linked traits refer to genes that are close together on the same chromosome and do not assort independently. Linked traits could be seen as a "pack og traits/genes" that are inherited together.

Answer:

(i) Small island

(ii) Large island

(iii) Option-3

Explanation:

In the given question, the three population of the Anoles Lizards migrated to three islands of different size.

(i) Genetic drift is a random or by the chance process which changes the frequency of the alleles in the population. The change in the frequency of the allele can be easily observed in the small population therefore the small island with the smallest size of the population will have the strongest genetic drift.

(ii) Heterozygosity of alleles that is with a dominant and a recessive allele is the result of the exchange of alleles in the population. The size of the population is finite on the island therefore the heterozygosity is not introduced in the small population but in a large population, it can be introduced as the mating is random.

(iii) The genetic drift is strongest on the small island therefore L2 allele can be easily influenced by this effect. The selection coefficient is very small that is 0.002 therefore no mutation is occurring on the island.

Answer:

option c is ur ANS mate .......