Cell Phone Facts : How Do Cell Phones Work?
Beware of the ad at the beginning. Very political. Cell phones work by transmitting a signal to a tower, which in turn sends signals to either land lines to other towers. Find out why cell phones have trouble and how they work. World's worst artist does not help.

Author(s): No creator set

License information
Related content

Parts of a Plant Cell
This short video explains each of the organelles inside a plant cell and especially addresses the organelles that differ from an animal cell. The video also briefly explains photosynthesis while discussing the chloroplasts in a plant cell. Run time 02:56
Author(s): No creator set

License information
Related content

Plant Cell Motility and Laser Microsurgery of Cytoplasmic Strands
 Plant cells are shaped by rigid cell walls. Osmotic forces press the plasma membrane tightly against these walls. The walls can be removed with enzymes. The remaining structures, the protoplasts, are now bordered by the plasma membrane. Since the shaping force of the wall is missing, isolated plant protoplasts are usually perfectly spherical in shape as a result of non-directional osmotic forces. Run time 04:19
Author(s): No creator set

License information
Related content

Plant Development: Cell Structure and Function
Professor George Wolfe discusses cell structure and function in this video from Thinkwell's online Biology series. This video uses lecture format and a whiteboard to aid in explanations.  Run time 11:07.
Author(s): No creator set

License information
Related content

Inside a Solar Cell
In this interactive activity adapted from NOVA Online, learn how a typical photovoltaic cell converts solar energy into electricity. Explore the components of a photovoltaic cell, including the silicon layers, metal backing, antireflective coating, and metal conductor strips. Using animations, investigate why the silicon layers are doped with phosphorous and boron, and how an electric field is used to generate electricity from sunlight. No audio.
Author(s): No creator set

License information
Related content

Biotechnology: Detection of Cell Clones
Professor George Wolfe discusses detection of cell clones in this video from Thinkwell's online Biology series. The video uses lecture format along with notes and illustrations on a board.  Run time 08:59.
Author(s): No creator set

License information
Related content

Lesson 11: Pronunciation of Palatalization (alt), Cell Phones and Driving

  • asset title: Lesson 11: Pronunciation of Palatalization (alt), Cell Phones and Driving
  • filename: tafalado_11.mp3
  • track number: 12/46
  • time: 8:16
  • size: 5.81 MB
  • bitrate: 96 kbps
In the previous lesson we learned all about palatalization, when words spelled with 'ti' sound like 'chee' and words with 'di' sound like 'j
Author(s): No creator set

License information
Related content

Lesson 10: Pronunciation of Palatalization, Cell Phones and Driving

  • asset title: Lesson 10: Pronunciation of Palatalization, Cell Phones and Driving
  • filename: tafalado_10.mp3
  • track number: 11/46
  • time: 13:47
  • size: 9.70 MB
  • bitrate: 96 kbps
One of the great differences between Spanish and Portuguese is seen in how Brazilians pronounce words that are spelled with 'ti,' which sounds mor
Author(s): No creator set

License information
Related content

Cell Anatomy
What are all those crazy parts and pieces of a cell? What is the procaryote and the eukaryote?  Video explains these two different types of cells.
Author(s): No creator set

License information
Related content

What is Biology and What is Cell Evolution?
This video gives the definition of Biology. There is reference to the evolution of life. There is an animated introduction to Cells and Molecules. There is an explanation of Cell evolution. There are examples of simple organisms, complex organisms and ecosystems.
Author(s): No creator set

License information
Related content

Cell Animation
Medical animator David Bolinsky presents 3 minutes of stunning animation that show the bustling life inside a cell. Bolinsky describes how he uses animation to help people see the beauty in the biological sciences. He worked on a project with Harvard to show molecular and cellular biology in a way that makes it easy for students to understand.
Author(s): No creator set

License information
Related content

Plant Cells: In Search of a Root Cell
This cartoon gives a brief overview of plant cells.  The cartoon investigator has an emergency and is looking for root cells to go in search of a new water supply for the plant.  There's not a whole lot of information given but the cartoon is cute and entertaining as it points out the fact that cells are all different and are designed to do different jobs. Run time 01:40.
Author(s): No creator set

License information
Related content

The Cell Dance
High quality student made project uses computer animation and music to show a large range of different cell types spanning many different areas of life science; from neurones to neutrophils, liver cells and islets, T cells and skin cells, whole maggots and drosophila embryos.  They all dance to music from The Nutcracker. Run time 02:05.

Author(s): No creator set

License information
Related content

Cell Differenciation
How does a single fertilized egg grow to become a fully formed human being? Many of the most critical stages happen in the first few days following conception. In this video segment from The Secret of Life, a fertilized egg cell progresses from its earliest stages through cell differentiation and ultimately the development of an embryo, with simple but identifiable body parts including a spinal cord, a heart, and eyes. Run time 01:20.
Author(s): No creator set

License information
Related content

Types of Immune Responses: Innate and Adaptive. Humoral vs. Cell-Mediated
This is an overview of types of immune responses. The instructor explains the difference between innate and adaptive immunity. The instructor uses computer software for demonstration. The screen is dark with small writing, so the viewer may want to open the screen to 'full screen'. The instructor is clear and easy to understand.
Author(s): No creator set

License information
Related content

Cell-Mediated Immunity
This is a video using computer animation that discusses what cell-mediated immunity is. Good sound quality. (03:04)
Author(s): No creator set

License information
Related content

Scientists claim to have created first manmade cell
This is from Fox and explains the ramifications of a manmade cell. The newscast shows the many possible uses how manmade bacteria can be used to help society. A good way to show students what the future may hold.
Author(s): No creator set

License information
Related content

Chromosomes and Cell Reproduction
Teacher-produced slide show with detailed notes on chromosomes and the cell cycle. Discusses key chromosomes and specific abnormalities that may occur. No sound. Too much text on slides, but the pictures that are included are very good and illustrate the points made. Grades 9-12. Run time 04:05.
Author(s): No creator set

License information
Related content

Cell Division In Lung Cells
Uses contrast microscopy to visual the process of cell division. Images in black and white with labeling and narration of what is occurring at each step. Grades 7-12. 58 sec.
Author(s): No creator set

License information
Related content

The Cell Cycle
The cell cycle is a series of events that cells go through to
reproduce and create more cells. Learn about the stages of the cell
cycle with information from a science teacher in this video.

Author(s): No creator set

License information
Related content