Physiology 1021 Chapter Notes - Chapter 3: Primary Cell, Cell Wall, Mitochondrion

• School: Western University
• Department: Physiology
• Course: Physiology 1021
• Professor: Tom Stavraky

Document Summary

Set number per species (i. e. 23 pairs for human) Collective term for cytosol and organelles contained within. Cytosol mainly composed of water with free-floating molecules. Composed of nine tubes, each with three tubules. Lie at right angles to each other. A plastid usually found in plant cells. Contain green chlorophyll where photosynthesis takes place. Aids movement of materials in and out of cells. Stores, separates, and serves as cell"s transport system. Rough type (pictured): ribosomes embedded in surface. Composed of numerous layers forming a sac. Digestive "plant" for proteins, lipids, and carbohydrates. Transports undigested material to cell membrane for removal. Vary in shape depending on process being carried out. Second largest organelle with unique genetic structure. Double-layered outer membrane with inner folds called cristae. Energy-producing chemical reactions take place on cristae. Controls level of water and other materials in cell. Recycles and decomposes proteins, fats, and carbohydrates, and forms urea. Stationary type: embedded in rough endoplasmic reticulum.