Question: Describe the structure and function of the plasma membrane in

a cell.

Answer: The plasma membrane acts as a selectively permeable barrier,

regulating the entry and exit of substances. It consists of a phospholipid

bilayer with embedded proteins that facilitate transport and signaling. The

fluid mosaic model describes the dynamic nature of this structure.

2. Question: Explain the role of organelles in maintaining cellular function

and organization.

Answer: Organelles, such as the nucleus, mitochondria, endoplasmic

reticulum, and Golgi apparatus, perform specific functions within a cell.

They help maintain cell homeostasis, produce energy, synthesize and

transport molecules, and facilitate cellular communication.

3. Question: Compare and contrast prokaryotic and eukaryotic cell

structures.

Answer: Prokaryotic cells lack a nucleus and membrane-bound organelles,

while eukaryotic cells possess these structures. Prokaryotes have a simpler

internal organization and are typically smaller than eukaryotes.

4. Question: Discuss the functions of the cytoplasm in a cell.

Answer: The cytoplasm serves as the medium in which organelles and

cellular processes occur. It consists of cytosol, which contains enzymes

and molecules necessary for cell metabolism, and cytoskeletal elements

that provide structural support.