INTERNAL EXCHANGE

Term 1: Internal Exchange (Gaseous Exchange)
Definition 1: The process where oxygen is transferred from the blood into the body's cells, and carbon dioxide is transferred from the cells into the blood.
Term 2: Systemic Capillaries
Definition 2: The tiny blood vessels that surround individual body cells, facilitating the direct exchange of gases, nutrients, and waste products.
Term 3: Oxygen (O2)
Definition 3: The gas that diffuses from the blood into the tissue cells during internal exchange, as it's needed for cellular respiration.
Term 4: Carbon Dioxide (CO2)
Definition 4: The waste gas produced by tissue cells during cellular respiration, which diffuses from the cells into the blood during internal exchange.
Term 5: Diffusion Gradient
Definition 5: The difference in concentration (or partial pressure) of a gas between two areas, causing the gas to move from a higher concentration to a lower one, which drives internal exchange.
Term 6: Cellular Respiration
Definition 6: The metabolic process within tissue cells that uses oxygen to break down glucose for energy (ATP), producing carbon dioxide and water as byproducts.
Term 7: Tissue Cells
Definition 7: Individual living units that make up the body's tissues and organs, which constantly require oxygen and produce carbon dioxide.
Term 8: undefined
Definition 8: The iron

Term 1: Internal Exchange (Gaseous Exchange)

Definition 1: Oxygen (from blood) transfers to body cells, and carbon dioxide (from cells) transfers to blood. Location:Systemic capillaries. Process: Diffusion.

Term 2: Systemic Capillaries

Definition 2: Tiny blood vessels surrounding body cells. Location: Site of internal gaseous exchange. Process:Facilitates direct exchange of gases, nutrients, and waste.

Term 3: Oxygen (O2)

Definition 3: Gas diffusing from blood in systemic capillaries into tissue cells. Process: Essential for cellular respiration.

Term 4: Carbon Dioxide (CO2)

Definition 4: Waste gas from tissue cells, diffuses into blood in systemic capillaries. Process: Removes CO2 from tissues.

Term 5: Diffusion Gradient

Definition 5: Concentration difference of a gas between blood and tissue cells, causing movement from high to low concentration. Process: Drives internal exchange.

Term 6: Cellular Respiration

Definition 6: Metabolic process in tissue cells (glucose + O2 = energy + CO2 + H2O). Location: Tissue cells. Process:Creates O2 demand and CO2 production, necessitating internal exchange.

Term 7: Tissue Cells

Definition 7: Living units of body tissues/organs. Location: Primary site for cellular respiration. Process: Constantly requires O2 and produces CO2, vital for internal exchange.

Term 8: Hemoglobin

Definition 8: Iron-containing protein in red blood cells. Process: Transports O2 to tissue cells and CO2 back to lungs. Aids gas exchange to/from internal exchange location.