ed6d52ba...
0138ebed...
1cba113d...
13847a12...
dce4446f...
032a747a...
IMAGE
Mitochondrion Structure
Diagram of a mitochondrion showing cristae.
Click to zoom
The folded inner membrane (cristae) maximizes surface area for energy production.
Understand how cells generate energy, synthesize food, and maintain structural support via water storage.
Structure and function of mitochondria.
Mitochondria are widely known as the powerhouses of the cell. They supply the energy required for most cellular activities by breaking down glucose and other molecules during cellular respiration.
This energy is stored and transported in the form of a molecule called ATP (Adenosine Triphosphate), which serves as the "energy currency" for the cell's daily work.
Diagram of a mitochondrion showing cristae.
The folded inner membrane (cristae) maximizes surface area for energy production.
Chloroplasts, chromoplasts, and leucoplasts in plant cells.
Plastids are unique, double-membrane-bound organelles found exclusively in plant cells. Like mitochondria, plastids are semi-autonomous because they have their own DNA and ribosomes.
Plants rely on plastids to synthesize food and store essential materials.
Diagram of a chloroplast.
Chloroplasts contain green chlorophyll and are the centers of food synthesis in plant cells.
Function of vacuoles in plants and animals.
Vacuoles are the cell's main storage organelles, holding water, minerals, sugars, and waste materials.
While animal cells occasionally have small vacuoles for temporary storage, mature plant cells typically feature one large central vacuole surrounded by a selectively permeable membrane.
Testing knowledge of organelles with their own DNA.
Which of the following pairs of cell organelles uniquely contains their own DNA, allowing them to make some of their own proteins?