All categories

3 years ago

Fill in the following flowchart to show the pathway of a red blood cell as

Biology

1 answer:

Alla [95]3 years ago

4 0

Answer:

1. The pathway of a red blood cell from the right ventricle to the brain is:

<em>Right ventricle → pulmonary arteries → lungs → pulmonary veins → left atrium → left ventricle → artery aorta → arterial vessels → brain .</em>

2. The substance that forms hemoglobin in red blood cells when it passes through the lungs is oxyhemoglobin.

Explanation:

Red blood cells are structures present in the blood, whose function is to transport oxygen (O₂) and carbon dioxide (CO₂). This process requires travel throughout the body, through the blood vessels, and gas exchange at the pulmonary and tissue level.

1. A red blood cell in the right ventricle contains carbon dioxide and must pass to the lungs to be oxygenated. The route it takes from there includes Right ventricle (minor circulation) → pulmonary arteries → lungs → pulmonary veins → left atrium → left ventricle → (joining the major circulation) artery aorta → arterial vessels → brain .

2. The red blood cell or erythrocyte contains a molecule, called hemoglobin, which has an iron core that allows it to bind to O₂ and CO₂ in order to transport them. The affinity for one molecule or another depends on the presence of a certain gas in a certain place.

When the red blood cell passes through the lungs, the concentration of O₂ is higher than CO₂, so the latter is released and O₂ binds to hemoglobin, a conjugation that is called oxyhemoglobin.

You might be interested in

When a phosphate bond is hydrolyzed, energy is released. the remaining adp is at a higher or lower energy state?

Eduardwww [97]

Answer:
The remaining ADP is at lower energy state.

Explanation:
ATP contain three phisphate bond. These phosphate groups form phosphodiester bond. Hydrolysis of each phosphate bond release about 7.3 Kcal of energy and one ADP. Now this ADP contain only one bond between phosphate group.

Result:
It is clered from the discussion that ADP is at lower energy level as compared to ATP due to less bond between phosphate group.

5 0

3 years ago

(Click the picture)

agasfer [191]

I think your right thats what i think it is two

8 0

3 years ago

Give examples of how scientist use repeated trials and replication in conducting experiments.

Anastasy [175]

When testing a hypothesis, scientists use repeated trials and replication to make sure that they get the same answer each time, and that it isn't just a lucky guess the first time. They need be sure that the answer to their hypothesis is 100% the same every time.

3 0

3 years ago

Read 2 more answers

Explain the role of air pressure, air masses and weather fronts in the formation of meteorological events such as thunderstorms,

PtichkaEL [24]

Hi,

here u go!!

Air masses are slowly pushed along by high-level winds, when an air mass moves over a new region, it shares its temperature and humidity with that region. ... For example, when a colder air mass moves over warmer ground, the bottom layer of air is heated. That air rises, forming clouds, rain, and sometimes thunderstorms.

hope it helps!!

5 0

3 years ago

In eastern gray squirrels, Sciurus carolinensis, the allele for black fur (B) is dominant to the allele for gray fur (b) . In a

DedPeter [7]

Answer:

The answer to the given question is C.

Explanation:

Natural selection:

The population contains both superior as well as inferior organisms where natural resources are limiting so it will cause competition between organisms. As a result of competition, it will select superiors, and inferiors are deleted and they are given reproductive advantages. Due to this reproductive advantage new population emerges. It is more suitable for the environment.

Natural selection divides into three parts that are directional, disruptive, and stabilizing selection.

This is an example of natural selection. Environmental conditions create pressure on the individuals and if they can survive and become fittest, their number increases in the population. This is according to Darwin's theory in the struggle for existence. These organisms survived as the fittest organisms to match climatic conditions.

Stabilizing selection: This operates when features coincide with the optimal environmental conditions and the organisms survive in a population. Stabilizing selection pressures do not promote evolutionary change but tend to maintain stability within the population from generation to generation.

In the beginning, directional selection - the organism develops characters to survive in response to gradual changes in the environmental conditions. It works on a range of phenotypes existing within a population and exerts selection pressure which moves the mean phenotype to one phenotypic extreme. When the mean phenotype overlaps with the new optimum environmental conditions, stabilizing selection will take over.

7 0

3 years ago