Department of Defense
Do Dea: Biology: Unit 3: Cell Structure
In this third unit of a Biology course, students learn about cells and cell structure. They compare prokaryotic and eukaryotic cells and learn about the specialized structures in a cell and what their functions are. They will also learn...
Khan Academy
Khan Academy: Cell Cycle Checkpoints
Learn how cells use checkpoints to regulate the cell cycle. This article provides an overview of cell cycle control, outlining the factors that influence a cell's decision to pause or progress at each checkpoint.
Khan Academy
Khan Academy: The Calvin Cycle
Learn about the three stages of the Calvin Cycle reactions: carbon fixation, reduction, and regeneration of the starting molecule. See how the products of the light reactions, ATP and NADPH, are used to fix carbon into sugars in this cycle.
Other
Curriki: Butterfly Life Cycle Lesson Plan
Project to learn about the life cycle of a butterfly and how the caterpillar becomes to be a butterfly.
CK-12 Foundation
Ck 12: Calvin Cycle
[Free Registration/Login may be required to access all resource tools.] The second stage of photosynthesis, the Calvin Cycle, is described. Students will learn how to write the overall photosynthesis equation, explain RuBisCo, describe...
CK-12 Foundation
Ck 12: Cell Cycle and Cancer
[Free Registration/Login may be required to access all resource tools.] Cell division is just one of several stages that a cell goes through during its lifetime. Students will learn about the phases of the cell cycle, specifically the...
BiologyWise
Biology Wise: Information About Nitrifying and Denitrifying Bacteria
Learn about the important role that nitrifying and denitrifying bacteria play in the nitrogen cycle.
Cosmo Learning
Cosmo Learning: Introductory Biology
A collection of video lectures discussing applications of human biology taught at Massachusetts Institute of Technology. Lectures vary in length and cover topics like the cell cycle, stem cells, and cancer.
PBS
Pbs Learning Media: The Fate of Carbon
Students examine the importance of carbon and learn about two Earth systems, the solubility pump and the biological pump, which cycle carbon from the atmosphere into the oceans and back again.
Georgia Department of Education
Ga Virtual Learning: Biology: Ecology Ii
Through a series of multi-media learning activities, students will assess the dependence of all organisms on one another and the flow of energy and matter within their ecosystems.
PBS
Pbs Learning Media: Cave Formation: Biogeochemical Cycles
This video segment adapted from NOVA chronicles the discoveries that led to a radical new theory in which living organisms, not just geological processes, play an active role in cave formation. [5:42]
CK-12 Foundation
Ck 12: Biology: Carbon Cycle
Learn about the carbon cycle.[Free Registration/Login may be required to access all resource tools.]
CK-12 Foundation
Ck 12: Life Science: Water Cycle
[Free Registration/Login may be required to access all resource tools.] Water and elements like carbon and nitrogen are constantly being recycled through the environment. This process is called a biogeochemical cycle because it involves...
CK-12 Foundation
Ck 12: Life Science: Cell Cycle
[Free Registration/Login may be required to access all resource tools.] The process of cell division in eukaryotic cells is carefully controlled. The cell cycle is the life cycle of a cell, with cell division at the end of the cycle....
CK-12 Foundation
Ck 12: Life Science: Carbon Cycle
[Free Registration/Login may be required to access all resource tools.] Carbon is one of the most common elements found in living organisms. Chains of carbon molecules form the backbones of many molecules, such as carbohydrates,...
CK-12 Foundation
Ck 12: Life Science: Menstrual Cycle
[Free Registration/Login may be required to access all resource tools.] The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month. Learn more about the menstrual cycle in this...
CK-12 Foundation
Ck 12: Life Science: Plant Reproduction and Life Cycle
[Free Registration/Login may be required to access all resource tools.] The life cycle of a plant is very different from the life cycle of an animal. Humans are made entirely of diploid cells (cells with two sets of chromosomes). Our...
CK-12 Foundation
Ck 12: Life Science: Nitrogen Cycle
[Free Registration/Login may be required to access all resource tools.] Like water and carbon, nitrogen is also repeatedly recycled through the biosphere. This process is called the nitrogen cycle. Learn more about the nitrogen cycle in...
CK-12 Foundation
Ck 12: Life Science: Insect Reproduction and Life Cycle
[Free Registration/Login may be required to access all resource tools.] Most insects can reproduce quickly within a short period of time, which means they evolve faster and can adjust to environmental changes. Most reproduce by sexual...
Khan Academy
Khan Academy: The Biology of Zika Virus
Learn about the basic biology, origins, life cycle, and symptoms of Zika virus.
TeachEngineering
Teach Engineering: Carbon Cycles
Students are introduced to the concept of energy cycles by learning about the carbon cycle. They will learn how carbon atoms travel through the geological (ancient) carbon cycle and the biological/physical carbon cycle. Students will...
US Geological Survey
Mercury in the Geochemical Cycle
Mercury in the geochemical cycle ultimately affects the food chain. Learn about this and its effect on the Everglades.
BioMan Biology
Bio Man Biology: Photosynthesis Respiration Game!
Learn about the chemistry of photosynthesis and respiration as you play this game.
Estrella Mountain Community College
Online Biology Book: Biological Diversity: Viruses
Through full-color images and concise information, learn about the intracellular parasites, viruses.