Remember, they have been blanched prior to freezing, so they are already partially cooked. I often roast frozen broccoli or Brussels sprouts in the morning, early, before work so I can take a roasted vegetable for lunch. I can just use a half bag of frozen broccoli, cauliflower, Brussels sprouts or green beans, and leave the rest frozen for another day or meal.
Water vapor is also excreted through the lungs, due to humidification of inspired air by the lung tissues. Molecules with a high affinity for hemoglobin, such as carbon monoxide, can be added to the blood in high concentrations. Red blood cells transit the alveolar capillaries in about 3/4 of a second.xygen moves from the alveoli (high oxygen concentration) to the blood (lower oxygen concentration). Conversely, carbon dioxide has a higher concentration in the blood than in the air. The oxygen first dissolves in the fluid in the interstitial tissues and diffuses into the blood.
The alveoli are grouped together like a lot of interlinked caves, rather than existing as separate individual sacs. Gas exchange of oxygen and carbon dioxide takes place in the alveoli. Oxygen from the inhaled air diffuses through the walls of the alveoli and adjacent capillaries into the red blood cells. The oxygen is then carried by the blood to the body tissues. Carbon dioxide produced by the bodyâs metabolism returns to the lung via the blood. It then diffuses across the capillary and alveolar walls into the air to be removed from the body with expiration. The alveoli have a structure specialised for efficient gaseous exchange: Walls are extremely thin.