Cell Membranes
According to cell theory, cells are the main unit of organization in biology.…
Cell Wall
Cell membranes surround every cell you will study. Cell walls made of cellulose are…
Permeases and Channels
Sisterhood of the Traveling Proteins Part II Experiment from last lecture reviewed.…
Active Transport
Active transport describes what happens when a cell uses energy to transport something. We're not…
Passive Transport
While active transport requires energy and work, passive transport does not. There are several different types…
Desmosomes
Desmosomes Definition Desmosomes are a type of anchoring junction in animal tissues…
Centrioles – Organizing Chromosomes
Every animal-like cell has two small organelles called centrioles. They are there to…
Meiosis
What are the big ideas here? There are two cell divisions. Mitosis has one…


