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Negative pressure causes oxygen to enter the alveoli. Air is pulled into the lungs as the lungs expand. The alveoli are membranes of small balloon-like structures attached to the branches of the bronchial passages.

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What causes water molecules to be attracted to one another?

hydrogen and oxygen form convalent polar bondings, this means that they share valence electrons and still are electrically charged (not as strongly as ionic bonds) An oxygen atom has six valence electrons and bonds with hydrogen atoms that have one valence electron by sharing it with the oxygen atom. in that way all atoms are now stable. but the hydrogen atoms attach to one side of the oxygen atom making a stronger pull that makes that side electrically charde while the other side is positively charged. when many molecules of water are present they stick to each other form their opposite charged sides (positive+negative) hence why they attract each other


Red blood cells transport oxygen that is bound to?

hemoglobin, a protein molecule found in red blood cells. Hemoglobin binds to oxygen in the lungs and transports it throughout the body, delivering it to tissues and organs that need oxygen for energy production.


Which two biogeochemical cycles depend directly on photosynthesis?

The carbon cycle and the oxygen cycle depend directly on photosynthesis. Photosynthesis converts carbon dioxide into organic compounds while releasing oxygen as a byproduct. This process is essential for maintaining the balance of carbon and oxygen in the atmosphere and ecosystem.


How do muscles attached to the bones move the body?

Muscles attached to bones contract and generate force, pulling on the bones they are attached to. This force causes the bones to move, resulting in movement of the body. The attachment of muscles to bones via tendons allows for efficient transfer of force and movement.


Why is oxygen needed for the final step in cellular respiration?

Oxygen is the final electron acceptor. Oxygen, with it's great electronegativity, pulls electrons through the electron transport chain where these electrons provide the motive force to pump protons into the outer lumen of the mitochondria. When these protons fall down their concentration gradient oxygen is there to pick then up with the electrons and form water.

Related Questions

How does partial pressure affect the movement of oxygen from the alveoli to the blood?

Partial pressure affects the movement of oxygen from the alveoli to the blood because it is the main driving force for oxygen movement in the lungs.Oxygen passes from the air to the fluid within the alveoli, into the cell of the alveoli.


What is the driving force behind gas exchange in the human body?

The driving force behind gas exchange in the human body is the concentration gradient of gases such as oxygen and carbon dioxide between the alveoli in the lungs and the blood in the pulmonary capillaries. Oxygen moves from the alveoli into the blood, while carbon dioxide moves from the blood into the alveoli, driven by differences in their partial pressures.


Which force causes acceleration?

The force that causes acceleration is known as net force.


What is the diffenerce of earth and space?

There is oxygen and gravitational force on earth but there is no oxygen and gravitational force


What force causes the molecules of blood to be attracted to each other?

The force that causes molecules of blood to be attracted to each other is the intermolecular force known as hydrogen bonding. This attraction occurs between the oxygen atom of one blood molecule and a hydrogen atom of another blood molecule. This force helps to maintain the cohesion of blood and ensures that it remains a liquid at body temperature.


What force causes what causes a static cling In a dryer?

Electricity is the force of what causes static cling in a dryer.


What are the causes of force?

The causes of force is the change of energy in space, f=dE/dr.


The force with which the contract causes blood pressure?

the force with which what the contract causes blood pressure


What is a force called that causes an object to object to move in a circle is called?

A force that causes an object to move in a circle is a central force, or a centripetal force.


Is force acceleration?

No a force causes acceleration.


Which U.S. military force was the first to enter World War 1?

Which U.S. military force was the first to enter WWI?


What force causes the strength of a magnet?

It's an electrical force that causes strength to a magnetic appearance .