They are the alveoli.
The alveoli
alveoli
Alveoli- these are the small sac-like structures where gas exchange occurs with the blood. Its creates an ideal site for gas exchange between the air in the lungs and the blood in the capillaries.
The small sac-like structures that are the site of gas exchange in the lungs are called alveoli. They are responsible for the exchange of oxygen and carbon dioxide between the air we breathe and our bloodstream, allowing for efficient respiration.
The site of gas exchange in the tissues is the capillaries. Here, oxygen from the red blood cells is released into the tissues, while carbon dioxide from the tissues enters the blood to be carried away. This exchange occurs due to differences in partial pressures of gases between the blood and the tissues.
There are many capillaries in the lungs. These small blood vessels are the site of gas exchange in the alveoli.
Lungs do not pump blood. They are the site of gas exchange between capillaries and alveoli.
Capillaries connect small arteries to small veins. Capillaries are the site of gas exchange.
Alveoli are site of gas exchange. Actual diffusion of gases occurs at interstitial space between capillaries and alveolar cells.
The main parts of an Elodea leaf are the cuticle (protective outer layer), epidermis (outer layer of cells), palisade layer (primary site of photosynthesis), spongy mesophyll layer (site of gas exchange), and stomata (pores for gas exchange). The cuticle protects the leaf, the epidermis provides structure, the palisade layer helps in photosynthesis, the spongy mesophyll layer aids in gas exchange, and stomata regulate gas exchange.
The capillary is the smallest of the blood vessels. It is the site of gas exchange between the blood and the tissues.