Texas Instruments
Texas Instruments: Organelles
This activity on cell organelles is designed to assess general knowledge of the various important structures in the cell and their functions.
CK-12 Foundation
Ck 12: Biology: Phospholipid Bilayers
[Free Registration/Login may be required to access all resource tools.] Describes the structure and function of the plasma membrane.
CK-12 Foundation
Ck 12: Biology: Phospholipid Bilayers
[Free Registration/Login may be required to access all resource tools.] Describes the structure and function of the plasma membrane.
City University of New York
Brooklyn College: Endoplasmic Reticulum
A good introduction to the structure and function of this cell system.
Soft Schools
Soft Schools: Cellular and Molecular Biology : Cell Processes Quiz
Take this interactive, multiple-choice quiz over the biochemical processes of life, then review your score and any missed questions at the end.
Soft Schools
Soft Schools: Cellular Functions of Organic Compounds Quiz
Take an interactive quiz over organic compounds. After completing the quiz, check your score, and then revisit any incorrect question for further review.
BiologyWise
Biology Wise: Rough Endoplasmic Reticulum
The endoplasmic reticulum is found in eukaryotic cells and has three layers. Proteins are synthesized in the rough endoplasmic reticulum and its structure and functions are described here.
BiologyWise
Biology Wise: Functions of the Plasma Membrane
Describes the structure and functions of a cell membrane.
BiologyWise
Biology Wise: Facts and Functions of the Golgi Apparatus
The structure and functions of the Golgi apparatus are described. Includes a list of interesting facts.
Sophia Learning
Sophia: Cell Wall: Lesson 2
This lesson will discuss the structure and function of a cell wall. It is 2 of 4 in the series titled "Cell Wall."
Sophia Learning
Sophia: Cell Wall: Lesson 4
This lesson will discuss the structure and function of a cell wall. It is 4 of 4 in the series titled "Cell Wall."
Sophia Learning
Sophia: Cell Wall: Lesson 3
This lesson will discuss the structure and function of a cell wall. It is 3 of 4 in the series titled "Cell Wall."
BiologyWise
Biology Wise: Mitochondria Functions
Describes the structure and functions of the mitochondria.
BiologyWise
Biology Wise: Mitochondrial Function
Describes the structure and functions of the mitochondria.
Sophia Learning
Sophia: Cell Membrane: Lesson 5
This lesson will discuss the structure and function of the cell membrane. It is 5 of 6 in the series titled "Cell Membrane."
Sophia Learning
Sophia: Cell Membrane: Lesson 6
This lesson will discuss the structure and function of the cell membrane. It is 6 of 6 in the series titled "Cell Membrane."
University of Utah
University of Utah: Learning Center: learn.genetics: Dropping Signals
Choose a cell type and go inside to see how its signals travel. The response depends on the type of cell the signal reaches. Cell types include photoreceptor, muscle cell, fibroblast, leaf parenchyma, and cancer.
Khan Academy
Khan Academy: Signal Relay Pathways
Learn how signals are relayed inside a cell starting from the cell membrane receptor. Look at the general characteristics of intracellular signal transduction pathways, as well as some relay mechanisms commonly used in these pathways.
Khan Academy
Khan Academy: Response to a Signal
Article takes a look at examples of the different ways cells can change their behavior in response to a signal at both the "micro" and "macro" levels.
Khan Academy
Khan Academy: Apoptosis
Resource explains apoptosis (programmed cell death) and how it is different from necrosis (cell death due to injury).
Other
Dolan Dna Learning Center: Inside Cancer
Multimedia guide to cancer provided by Dolan DNA Learning Center. The site is extremely comprehensive and is divided into four main segments:Hallmarks of Cancer,Causes and Prevention, Diagnosis and Treatment, and Pathways to Cancer. The...
Untamed Science
Untamed Science: Biology: Human Biology: Blood
Learn about the structure and function of human blood as well as the composition of this complex substance in the human body through a series of video clips.
BiologyWise
Biology Wise: A Labeled Diagram That Explains Function of Nucleolus
Explains what the cell nucleolus is, its functions, and its structure.
BiologyWise
Biology Wise: The Cell Wall Functions in Plants and Animal
Describes the composition and functions of cell walls in plants, algae, fungi, and bacteria.