Animal Cell Organelles

Animal Cell Organelles

Plasma Membrane (Cell Membrane)

  • Function: Serves as the protective outer layer of the cell.

  • Property: It is semi-permeable, meaning it meticulously controls what enters the cell (allowing essential substances) and prevents undesirable substances from entering.

Cytoplasm

  • Description: A watery medium located inside the cell in which all other components are suspended.

  • Contents: It contains all the functional parts of the cell, collectively known as organelles, which float within it.

Nucleus

  • Primary Role: This central organelle houses the cell's DNA, which contains all the genetic information necessary for the organism.

  • Genetic Structure: The DNA is organized into structures called chromosomes.

  • Chromosome Count: Each nucleus in every cell contains 23 pairs of chromosomes, amounting to a total of 46 chromosomes.

Nuclear Membrane

  • Location: This membrane completely surrounds the nucleus.

  • Function: It acts as a selective barrier, controlling the movement of substances into and out of the nucleus.