<span>Vesicles are small, membrane-bounded spheres that contain various macromolecules. Some vesicles, as we have seen, are used to transport macromolecules from the endoplasmic reticulum to the Golgi body, and from the Golgi body to various destinations. Special kinds of vesicles perform other functions as well. Lysosomes are vesicles that contain enzymes involved in cellular digestion. Some protists, for instance, engulf other cells for food. In a process called phagocytosis, the protist surrounds a food particle and engulfs it within a vesicle. This food containing vesicle is transported within the protist's cytoplasm until it is contiguous with a lysosome. The food vesicle and lysosome merge, and the enzymes within the lysosome are released into the food vesicle. The enzymes break the food down into smaller parts for use by the protist.</span>
Answer:
electromagnetic radiation Transfer of energy by electromagnetic waves across space or through matter.
Answer:
La función básica del aparato respiratorio es la respiración. Consiste en llevar el oxígeno del aire a la sangre y eliminar el anhídrido carbónico (CO2) al aire. Este intercambio de gases se produce en el interior de los pulmones.
Explanation:
In summer they're cooler and during winter they're warmer
"Neurons" are the functional unit of the nervous system; it is the specialized cells transmitting nerve impulses
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