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Water Potential

In this video Paul Andersen defines water potential and explains how it can be calculated in a simple system. He explains how water can moved through ...

AP Biology Labs - part 2

Paul Andersen explains the final 6 of 13 AP Biology Labs. The following topics are included: Transformation, Restriction Analysis of DNA, Energy Dynamics, ...

Cell Transport

Explore the types of passive and active cell transport with the Amoeba Sisters! This video has a handout here: http://www.amoebasisters.com/handouts.html ...

Integumentary System

In this video Paul Andersen details the important structures and functions of the integumentary system. The integumentary system includes the skin, hair and ...

Parts of a cell

Parts of a cell: nucleus, ribosomes, endoplasmic reticulum, Golgi bodies, mitochondria, chloroplasts, vacuoles, and vesicles About Khan Academy: Khan ...

Toothpickase Enzyme Lab

Toothpickase enzyme lab simulating enzyme activity under various conditions. Conducted in 2010 by the biology students at Southfield Christian School, ...