Lake Superior is largest lake by surface area at 82,103 square kilometers, and Lake Huron at 59,570 sq km is second largest lake in the country. The below ranked lakes are including Man-made and salt water which also mentioned for the particular lakes in the list.
An alveolus is a tiny air sac formed at the tip of the lungs' smallest airways, the bronchioles. The primary function of the alveoli is the exchange of carbon dioxide for oxygen.Tissues within the alveoli also carry out secondary functions, such as the production of hormones, enzymes, and pulmonary surfactant.he exchange of carbon dioxide for oxygen is the primary function of the alveoli. The capillaries of the alveolus branch from both the pulmonary artery and the pulmonary vein.
In general, the functions of the vacuole include: 1  Isolating materials that might be harmful or a threat to the cell. 2  Containing waste products. 3  Containing water in plant cells.acuoles also play a major role in autophagy, maintaining a balance between biogenesis (production) and degradation (or turnover), of many substances and cell structures in certain organisms. They also aid in the lysis and recycling of misfolded proteins that have begun to build up within the cell.