Animal Complexity: Levels of Organization - Lesson 2

Cellular Organelles and Structures

• The mitochondria is known as the 'power center of the cell' due to its role in generating energy for the cell through cellular respiration.

Photosynthesis

• Photosynthesis takes place in the chloroplasts of plant cells, converting light energy into chemical energy.

Cellular Organelles and Structures (continued)

• The Golgi apparatus is responsible for packaging, processing, and shipping out cellular products, including proteins and lipids.

Cell Division

• The centrioles are involved in the process of cell division, playing a crucial role in the formation of the spindle fibers.

Cell Membrane

• The main function of the cell membrane is to regulate what enters and leaves the cell, maintaining cellular homeostasis.

Cell Types

• Eukaryotic cells have a membrane-covered nucleus, distinguishing them from prokaryotic cells.

Cytoplasm

• The cytoplasm is the jelly-like substance within the cell membrane, responsible for various cellular activities, including metabolism, protein synthesis, and cell signaling.

Cell Theory

• According to the Cell Theory, all cells arise from pre-existing cells, emphasizing that cells are the basic units of life.