City University of New York
The World of Cells: Golgi Apparatus
A very brief explanation of the structure and function of this organelle.
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: The Endomembrane System
Article looks at the structure and function of the different parts of the endomembrane system, how proteins, lipids, and vesicles are transported between these parts, and how this activity keeps the cell running smoothly.
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).
PBS
Pbs Learning Media: Mitochondria
Often referred to as the powerhouses of the cell, mitochondria provide the energy that powers nearly every cellular process. This essay by university lecturer John Ross describes in detail the structures and functions of these amazing...
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: Peripheral and Integral Membrane Proteins
Discusses the structure of a cell membrane, the role of membrane proteins, and the differences between integral membrane proteins and peripheral membrane proteins as regards to their functions, location, and relationship with the...
CK-12 Foundation
Ck 12: Biology: Human Egg Cells
[Free Registration/Login may be required to access all resource tools.] Describes how eggs are produced.
CommonLit
Common Lit: "Let's See What You're Made Of" by Bird Brain Science
This informational, scientific text explains how cells, the smallest unit of a living organism, make up every living thing in the world. As you read, take notes on the comparisons used in the text to explain how cells work. [Free account...
BiologyWise
Biology Wise: Facts About Chloroplast
Explains how chloroplasts evolved into their present form, how photosynthesis takes place in them, where they are found in plants, physical characteristics, and other functions they perform.
University of California
Tetrahymena as a Unicellular Model Organism
Information on Tetrahymena thermophila and why it is an important unicellular organism.
Biology 4 kids
Biology4 Kids: Microfilaments Stringy Proteins
A short, informational text piece which explains the structure and function of microfilaments inside a cell.
Better Lesson
Better Lesson: Using the Five Finger Rule
Students identify text features in nonfiction, as they continue to study cells' function as building blocks of organisms, and summarize the requirements for cells to live.
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...
Other
University of Cincinnati: Dna Structure and Function
This site explores the history and the science of DNA. Content also examines and considers the possibilities of genetic engineering and mutation.
University of Arizona
Biology Project: Cell Cycle and Mitosis Tutorial: Dna Basics
Tutorial on DNA basics that goes along with an online quiz over the material. Use the naviagation buttons at the bottom of the page to go to the quiz over the material.
City University of New York
The World of Cells: Viruses
Alive or not, viruses are introduced in an easy to follow essay that explains many basic concepts.
Soft Schools
Soft Schools: Molecules of Life Quiz
Take an interactive quiz over the molecules of life. After completing the quiz, check your score, and then revisit any incorrect question for further review.
Soft Schools
Soft Schools: More Molecules of Life/biochemistry Quiz
Take this interactive, multiple-choice quiz over the organic molecules important to life, then review your score and any missed questions at the end.
BiologyWise
Biology Wise: Chromosomes: The Carriers of Genetic Information
Explains what chromosomes are, their structure, their functions within a cell, and the health impact of mutations in a gene sequence.
Cosmo Learning
Cosmo Learning: Introduction to Biology
A collection of video lectures from an introduction to biology course taught at the Massachusetts Institute of Technology. The course teaches "biological function at the molecular level" with thirty-five lectures. Lectures vary in length...
OpenStax
Open Stax: Anatomy & Physiology: Adaptive Immune Response: B Lymphocytes
Students will learn the structure and function of B-cells and the antibody classes and their functions.