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What determines in which direction carbon dioxide and oxygen will diffuse in the lungs and tissues?
Diffusion, whether of gases or some other substance, is always dependent on a diffusion gradient. Diffusion always occurs from an area of high [H] concentration to an area of low [L] concentration.
In the case of the lungs:
- oxygen moves from a [H] concentration in the lungs/alveoli to a [L] concentration in the blood
- carbon dioxide moves from [H] concentration in the blood to a [L] concentration in the lungs/alveoli
With tissues, the situation is much the same:
- oxygen moves from a [H] concentration in the blood to a [L] concentration in the tissues
- carbon dioxide moves from a [H] concentration in the tissues to a [L] concentration in the blood
What else can I help you with?
Exchange of nutrients and gases between the blood and tissue cells?
This process occurs through the capillaries. Nutrients and oxygen diffuse from the blood into the tissues, while waste products and carbon dioxide diffuse from the tissues into the blood. This exchange is facilitated by the thin walls of the capillaries and the high surface area for diffusion.
Why does carbon dioxide moves into red blood cells by diffusion rather than by active transport?
Do you mean why does carbon dioxide diffuse out of the cells into the bloodstream? Diffusion is the movement of particles from a region of high concentration to a region of low concentration. Carbon dioxide is present in your body cells at a high concentration because the cells are making it. The process which makes carbon dioxide in cells is respiration. This is the release of energy from food. Carbon dioxide is a waste product of respiration. The carbon dioxide molecules diffuse into the blood because there is a lower concentration in the than in the cells. This is because the blood is always moving, so the carbon dioxide is carried away and does not build up. The difference in concentration between the cells and the blood keeps carbon dioxide diffusing in the correct direction. See: http://www.bbc.co.uk/schools/gcsebitesize/biology/cellprocesses/2diffusionandosmosisrev2.shtml
How is carbon dioxide produced in the tissues?
Carbon dioxide is produced in the tissues through a process called cellular respiration. During this process, cells break down glucose to produce energy, releasing carbon dioxide as a byproduct. This carbon dioxide is then carried by the blood to the lungs, where it is exhaled out of the body.
Oxygen and carbon dioxide exchange between the circulatory system and tissues occurs at the?
oxygen and carbon dioxide exchange between the circulatory system and tissues occurs at the capillaries, which are the smallest blood vessels where nutrient and gas exchange takes place through diffusion. Oxygen from the blood is released into the tissues, and carbon dioxide from the tissues is taken up by the blood to be transported back to the lungs for elimination.
What Contain hemoglobin and transports oxygen to the body tissues and removes CO2 from the body tissues?
Red blood cells contain hemoglobin, which transports oxygen from the lungs to the body tissues and removes carbon dioxide from the body tissues. Hemoglobin binds to oxygen in the lungs and releases it in other tissues, while also picking up carbon dioxide to be exhaled from the body.
What gas diffuse from the tissues to the blood?
Both oxygen and carbon dioxide diffuse from body tissues into the blood.
What gas diffuses from the tissues to the blood?
Both oxygen and carbon dioxide diffuse from body tissues into the blood.
How do you resive oxygen and remove carbon dioxide?
Oxygen and carbon dioxide are moved to and from body tissues via the circulatory system. These materials diffuse through the cell membrane, and then diffuse through the capillary wall into or out of the bloodstream.
How does long term exercise affect oxygen diffusion rates?
An increase in diffusion rates in tissues favours oxygen movement from the capillaries to the tissues, and carbon dioxide from the cells to the blood. Also With some training these rates increase, allowing oxygen and carbon dioxide to diffuse more rapidly.
What determines whether oxygen and carbon dioxide diffuse into or out of the capillaries of the tissues near alveoli explain?
its the blood which act as a transporter and the concentration of blood determines that oxygen will diffuse faster than carbon dioxide due to its small molecular weight but if diffusion occur in such manner then amount of carbon dioxide will be automatically more. carbon dioxide is a toxic gas and its presence in more amount can causes problems by increasing the PH of blood,but carbon dioxide has an affinity for water. The excess carbon dioxide gets dissolve in water or simply we can say in plasma of blood more than oxygen so its its excrete in lungs and passes from lungs to mouth in atmosphere following bronchioles and bronchi.
How oxygen and carbon dioxide enter and leave cells?
carbon dioxide goes into pores in the under surface of the leaf, called stomata, and diffuse into the leafs tissues and oxygen exits through these pores aswell though this cannot happen when the stomata close up
The vessels in the circulatory system that allow molecules to diffuse across tissues?
because they have a long tissues that the blood flows
How is carbon dioxide found in the lymph?
Carbon dioxide in the body can diffuse from the blood into the lymphatic vessels, as lymph is a fluid that closely interacts with blood and picks up some of its components, including metabolic byproducts like carbon dioxide. The lymphatic system helps to remove excess fluids, waste, and other substances, including carbon dioxide, from tissues in the body.
How does the exchange of the oxygen with waste and carbon dioxide takes place in the capillaries?
In the capillaries, oxygen diffuses from the blood into the tissue cells, where it is used for cellular respiration. At the same time, waste products and carbon dioxide produced by the cells diffuse from the tissues into the blood to be transported to the lungs for exhalation. This exchange occurs due to differences in concentration gradients between the blood and the surrounding tissues.
Which direction does carbon dioxide move during internal respiration?
During internal respiration, carbon dioxide moves from the tissues into the bloodstream. This occurs because carbon dioxide is a waste product produced by cells during cellular respiration and needs to be transported to the lungs to be expelled from the body.
Exchange of nutrients and gases between the blood and tissue cells?
This process occurs through the capillaries. Nutrients and oxygen diffuse from the blood into the tissues, while waste products and carbon dioxide diffuse from the tissues into the blood. This exchange is facilitated by the thin walls of the capillaries and the high surface area for diffusion.
Describe how chemicals are exchanged between cells and blood?
Substances move down their concentration gradient. By that I mean where they move from an area of high concentration to an area of low concentration. This is essentially diffusion. Nutrients like glucose or oxygen that are high in the blood but low in the tissues, diffuse from the blood into the tissues. Wastes like carbon dioxide which are high in the tissues but low in the blood, diffuse from the tissues into the blood.
