Answer:
Intercambio de oxígeno y dióxido de carbono
Por
Rebecca Dezube
, MD, MHS, Johns Hopkins University
Última revisión completa jun. 2019
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La principal función del aparato respiratorio es inhalar oxígeno y eliminar dióxido de carbono. El oxígeno inhalado penetra en los pulmones y alcanza los alvéolos. Las capas de células que revisten los alvéolos y los capilares circundantes se disponen ocupando el espesor de una sola célula y están en contacto estrecho unas con otras. Esta barrera entre el aire y la sangre tiene un grosor aproximado de una micra (1/10 000 cm). El oxígeno atraviesa rápidamente esta barrera aire–sangre y llega hasta la sangre que circula por los capilares. Igualmente, el dióxido de carbono pasa de la sangre al interior de los alvéolos, desde donde es exhalado al exterior.
La sangre oxigenada circula desde los pulmones por las venas pulmonares y, al llegar al lado izquierdo del corazón, es bombeada hacia el resto del organismo (véase Función del corazón). La sangre con déficit de oxígeno y cargada de dióxido de carbono vuelve al lado derecho del corazón a través de dos grandes venas: la vena cava inferior y la vena cava superior. A continuación, la sangre es impulsada a través de la arteria pulmonar hacia los pulmones, donde recoge el oxígeno y libera el dióxido de carbono.
Intercambio de gases entre las alveolas y los capilares
Para mantener la absorción de oxígeno y la emisión de dióxido de carbono, entran y salen de los pulmones entre 5 y 8 L de aire por minuto, y cada minuto se transfiere alrededor del 30% de cada litro (cerca de tres décimos de galón) de oxígeno desde los alvéolos hasta la sangre, aun cuando la persona esté en reposo. Al mismo tiempo, un volumen similar de dióxido de carbono pasa de la sangre a los alvéolos y es exhalado. Durante el ejercicio, es posible respirar más de 100 L de aire por minuto y extraer de este aire 3 L de oxígeno por minuto. La velocidad de entrada del oxígeno en el organismo es una medida importante de la cantidad total de energía consumida por este. La inspiración y la espiración se llevan a cabo gracias a los músculos respiratorios.
Orbital Wave
is a orbital wave in which particle of the medium move in closed circles as the wave passes?
Answer:
Yes, It is.
Explanation:
Orbital Wave:
A progressive wave in which particles of the medium move in closed circles.
What is the definition of an oocyte
Answer:
Oocyte: A cell in a ovary which may undergo meiotic division to form an ovum
Why do scientists think that Greenland's climate was warm and moist 80 million years ago?
Which of the following events takes place during a single rotation of Earth?
A.
a complete day-night cycle
B.
a complete cycle of four seasons
C.
the passing of 12 hours
D.
a total of 365 revolutions
Answer:
A
Explanation:
Answer is option one, or A
True or False
A chloroplast consists solely of a football shaped container of chlorophyll.
The answer is False :)
please help me thank you
Answer:
3. A 2. B. 1. B
Explanation:
Im not to sure about 1. but other than that your good sorry if this didn't help
In order to maintain a high level of performance, what types of foods do you think an athlete should eat right before a race? Select one.
please help
foods high in fiber
foods high in protein
foods high in starch
Explain your reasoning.
Answer:
B.
Explanation:
foods that are high in protein have the ability to give you more endurance and energy
The arthropods with three body sections, three pairs of legs, and one or two pairs of wings are the
Answer:
Insects
Explanation:
Insects are arthropods that have three body segments, three pairs of legs, one pair of antennae, and many have one or two pairs of wings. The three body sections are called the head, the thorax, and the abdomen. Wings and legs are attached to the thorax, the middle section.
Answer:
incet
Explanation:
HELPPP!!!!!!!........
Answer:
i think the answer is...some bacteria avt like devomposer & recycle......
All of the following are properties of nonmetals EXCEPT —
Answer:
the answer is the first one
What is the largest geographic area that contains all the
ecosystems on Earth called?
Answer:
biosphere is the answer
Which is NOT true of magnetic
domains?
A. Magnetic domains are groups of aligned
atoms.
B. Magnetic domains are too small to be seen.
C. Magnetic domains are outside of a magnet.
Which of these processes does NOT occur as part of the cell cycle in animal cells?
DOES ANYONE KNOW 10?
Answer:
Disjunction
Explanation:
What elements are needed to carry out photosynthesis? Select all that apply.
Answer:
You need carbon dioxide, sunlight, and water.
Explanation:
Answer:
1.
1.Light or photochemical reactions.
They require the presence of sunlight, which is transformed into chemical energy usable by organisms in the form of ATP, these reactions occur in thylakoids, and for their more detailed study, photochemical reactions are classified as cyclic photophosphorylation and non-cyclic photophosphorylation.
2.Carbon fixation reactions or reactions in the dark.
They require or not the presence of sunlight, and they are reactions that will occur in the stomata.
3.Chemosynthesis.
They take inorganic compounds and O2 from the environment and combine them inside their cells and as a result of these reactions energy is released (exergonic reactions) applying it in the synthesis of ATP (endergonic reactions), forming inorganic by-products.
Biological importance of photosynthesis:
Photosynthesis is surely the most important biochemical process in the biosphere for several reasons:
1. Every year some 200,000 million tons of carbon is used in the photosynthetic process.
2. The synthesis of organic matter from inorganic is carried out mainly through photosynthesis; that will go from some living beings to others through the food chains.
3. Produces the transformation of light energy into chemical energy, necessary and used by living beings.
4. Oxygen is released, which will be used in aerobic respiration as an oxidant.
5. It is the cause of the change produced in the primitive atmosphere, which was Anaerobic and reductive.
6. The energy stored in fossil fuels such as Coal, Oil, and Natural Gas also depends on it.
7. It is responsible for maintaining the necessary balance between Autotrophic and Heterotrophic beings.
8. During the process, dioxygen is released into the atmosphere, which implies:
Convection currents transfer thermal energy ____.
a. as a result of buoyancy
b. from warmer regions to cooler regions
c. between continents
d. from cooler regions to warmer regions
What was scientific racism seen in the eugenics movement
Answer:
The Eugenics Record Office also maintained there was clear evidence that supposed negative family traits were caused by bad genes, not racism, economics or the social views of the time.
Explanation:
How might the increase of volcanic eruptions affect Earth?
A. It might produce more ozone in the atmosphere
B. It might decrease temperature across Earth
C. It might increase the carbon dioxide in the atmosphere
D. It might cause the Earth’s surface to absorb more oxygen.
How does the inheritance of dominant traits differ from the inheritance of recessive traits?
Answer:
Dominant traits are more visible than recessive traits
why photosynthesis is important
Answer:
It is important because plants would not be able to produce food for themselves, so the plant would die. Animals that feed on plants would not be able to survive, and animals that feed on other animals would die too because they would not have any food.
Plz ANWSER BOTH
10. If the Moon were directly over the North Pole, what would you expect the tide
to be like along the equator?*
high tide
low tide
O neap tide
Ospring tide
11. A coastal town will experience --- high tides per day.*
one
o
two
three
ОО
four
M
Explanation:
first one is be the second one is d
6. Potential energy converts to Kinetic energy and Kinetic energy will convert to
Potential energy. Why does the total energy stay the same? *
The energy is not being created or destroyed: only transformed.
Total energy does not stay the same as some is always lost as heat.
Ο Ο
Energy stays the same because the energy has no where to go but in a system.
Answer:
The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. ... Once the potential energy locked in carbohydrates is converted into kinetic energy (energy in use or motion), the organism will get no more until energy is input again.
When biologists talk about a population of organisms, they are referring to
A) all the organisms in a particular area
B) all the organisms all over the world
C) all the organisms of one species in a particular area
D) all the organisms of one species all over the world
Answer:
C because it couldn't be D
When biologists talk about a population of organisms, they are referring to all the organisms of one species in a particular area. Therefore, option (C) is correct.
A population is a group of individuals of the same species living in a particular geographical area and capable of interbreeding. This means that they share a gene pool and can produce fertile offspring. The size and characteristics of a population can be influenced by various factors, such as environmental conditions, competition for resources, predation, and disease.
Studying populations is essential for understanding how ecosystems function and how they may respond to changes in the environment or human activities, such as habitat destruction or climate change.
Learn more about population, here:
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Buford is arguing that genetically modified (GM) food crops have many benefits, and that they should continue to be raised. Which of the following statements provides the STRONGEST evidence in support of Buford’s argument?
a. In many cases, pest-resistant GM plants still require the use of insecticides.
b. GM plants incorporate genes that they never would have obtained naturally.
c. GM foods have been widely available for two decades, and no safety issues have
been reported.
d. Genetic technology is increasing the number and variety of plants that are raised for
food.
Answer: D.
Explanation: Buford is saying that it has many benefits and the only answer that supports it is d.
1.
Large sharks eat many other marine life animals. The sharks and the animals they eat are all part of which level of organization?
Answer:
These sharks eat small fishes that come to the level 2 and small planktons as level 1
Explanation:
Standing on a diving board kinetic energy or potential energy
while standing on the diving board you'd have potential energy. after jumping you'd have kinetic energy.
please help meeeeeeeeeeeee
Answer: H2O
Explanation:
The reactants are everything on the left of the arrow and the products are everything on the right of the arrow.
There is only one product on the right which is H2O.
Answer:
i do not remember this for the life of me and i was so good, i believe the answer is water would be a product, and the equation is balanced
Explanation:
If a telescope could zoom even further in, and look beyond the hdf , what do you think they would see?
Which space telescope is used to see distant objects?
The Hubble Space Telescope, often known as HST or Hubble, is an observatory that was put into low-Earth orbit in 1990 and is still in use today.Although it wasn't the first space telescope, it is one of the biggest and most useful ones. It is famous for being both an essential scientific tool and a public relations success for astronomy.The only telescope made with astronaut maintenance in mind is Hubble. Five Space Shuttle trips have been used to replace, improve, and repair the telescope's systems.Since Hubble is orbiting outside of Earth's distorted atmosphere, it can take extraordinarily high-resolution pictures with a lot less background light than ground-based telescopes can.The Hubble telescope and other space telescopes can be used to zoom at distant objects.
Learn more about space telescopes here:
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Can you pick out the statements that are true; statements that support the influence of the Sun and the Earth? [Multi choice]
A) Spring tides are the largest tides due to the combined influence of the Sun and the Moon.
B) The sunspot cycle results in ice ages on Earth.
C) Solar flares disturb some radio communications here on Earth.
D) Geomagnetic storms on the Sun can damage to Earth-orbiting satellites.
E) The Sun's gravity is responsible for the planets' orbital path.
Answer: This is the answer, look at attachment
Answer:
took the quiz
Explanation:
One condition in the body that needs to be controlled is the level of
water. Give one other condition in the human body that needs to be
controlled.
Answer:
Levels of electrolytes, blood sugar, temperature etc