NEET BIOLOGY

Detailed explanation-1: -As most high schoolers learn, the lysosome carries out waste disposal and recycling. In a process known as autophagy (meaning “self-eating”), it takes in old cellular components and unneeded large molecules, such as proteins, nucleic acids and sugars, and digests them with the help of enzymes and acids.

Detailed explanation-2: -The plasma membrane controls the passage of organic molecules, ions, water, and oxygen into and out of the cell. Wastes (such as carbon dioxide and ammonia) also leave the cell by passing through the plasma membrane.

Detailed explanation-3: -When a lysosome comes across cellular debris it can’t reuse, it fuses with the cell membrane and dumps the waste out of the cell in a process called exocytosis. In the last decade, biologists have expanded their view of the lysosome, showing its central role in cellular health and disease.

Detailed explanation-4: -Cell membranes allow small molecules such as oxygen, water carbon dioxide, and oxygen to pass through but do not allow larger molecules like glucose, sucrose, proteins, and starch to enter the cell directly.