Texas Instruments
Texas Instruments: Giant Cells
In this activity you will examine surface area and volume of cells and will describe the relationship between surface area and volume of cells.
Exploratorium
Exploratorium: Microscope Imaging Station: Cell Development
This interesting site provides videos and photos of cells going through the process of cell division. Observe Zebrafish development and Sea urchin embryo cell division in video format.
BiologyWise
Biology Wise: What Is a Haploid Cell?
Explains what haploid cells are and the role they play in reproduction.
CK-12 Foundation
Ck 12: Meiosis
[Free Registration/Login may be required to access all resource tools.] How do you make a cell with half the DNA? Meiosis. This activity outlines the phases of meiosis, provides an overview of sexual reproduction, and describe how...
TED Talks
Ted: Ted Ed: The Cancer Gene We All Have
Within every cell in our body, two copies of a tumor suppressor gene called BRCA1 are tasked with regulating the speed at which cells divide. This learning module explains how these genes can sometimes mutate, making those cells less...
BBC
Bbc: Gcse Bitesize: Dna, Genes and Chromosomes
Chromosomes are made from DNA. Genes are short sections of DNA. Genetically identical cells are produced by a type of cell division called mitosis. In sexual reproduction, a male gamete fuses with a female gamete to produce a new cell....
Cold Spring Harbor Laboratory
Dolan Dna Learning Center: Disease & Mutation: Tumor Growth
See how cell division is essential for healthy growth of an organism, and how complex genetic mechanisms have evolved to switch cell division on and off at the proper time for normal development. [0:50]
CK-12 Foundation
Ck 12: Life Science: Mitosis and Cytokinesis
[Free Registration/Login may be required to access all resource tools.] During mitosis, the DNA in a nucleus must replicate. The copied DNA is divided into two genetically identical sets, so that after cytokinesis or cell division, each...
Exploratorium
Exploratorium: Microscope Imaging Station: Mitosis Flipbook
Use this series of images depicting the process of mitosis in the early embryo of the fruit fly, Drosophila melanogaster to make a mitosis flipbook. In this stage of Drosophila development, nuclei divide very rapidly without cell...
Khan Academy
Khan Academy: Bacteria Binary Fission
Tutorial explains the steps of bacterial binary fission which is the process that bacteria use to carry out cell division.
National Health Museum
Access Excellence: Graphics Gallery of Biotechnology
This site provides simple diagrams on all major topics in cell biology, genetics and biotechnology.
National Institutes of Health
National Institutes of Health: What Are the Unique Properties of All Stem Cells
Stem cells are unspecialized, stems cells are capable of dividing and renewing themselves for long periods, and stem cells can give rise to specialized cells.
University of Utah
University of Utah: Genetic Science Learning Center: Crossing the Divide: How Neurons Talk to Each Other
This slideshow explains the process of how a neuron communicates.
Khan Academy
Khan Academy: Phases of Mitosis
Tutorial examines how a cell divides to make two genetically identical cells and explores the four basic phases: prophase, metaphase, anaphase, and telophase.
San Diego State University
Sdsu: Lesson 2.5: How Do Organisms Reproduce? Meiosis
This site will allow students to grasp the complex concept of meiosis by modeling the process with clay.
PBS
Pbs Teachers: Surviving Aids: Fighting Back (Hot Science)
Explore the body's immune system to understand how a virus enters the body and how the human body fights against the viruses like the mumps virus and HIV.
PBS
Nova Online: Life's Greatest Miracle
The miracle of life is featured in this wonderful series of short videos and journal entries. A variety of topics are covered in this well written, authoritative piece.
ClassFlow
Class Flow: Mitosis
[Free Registration/Login Required] This flipchart discusses the stages of cell division and contains illustrations of the phases of the process. Assessment questions are included.
Cosmo Learning
Cosmo Learning: Video: Mitosis in Real Time
Can you identify the steps of mitosis in this video? The video shows the process of the nucleus of a eukaryotic cell dividing in real time. [0:19]
BiologyWise
Biology Wise: Chromosomes vs. Chromatids: What You Need to Know
Explains what chromosomes are, how chromatids are related to them, and how they function together during cell division.
CK-12 Foundation
Ck 12: Life Science: Meiosis
[Free Registration/Login may be required to access all resource tools.] Sexual reproduction combines gametes from two parents. Gametes are produced by a special type of cell division known as meiosis. Meiosis contains two rounds of cell...
PBS
Pbs: Never Say Die: The Clock of Life
This site from the PBS production, Scientific American Frontier "Never Say Die", includes a section entitled "The Clock of Life". It provides a discussion of cell death through shortening of the telomere. A good class activity included.
BiologyWise
Biology Wise: Mitosis and Cancer
Just like mitosis creates two identical healthy cells from one, it also enables cancer cells to duplicate themselves, facilitating the spread of the disease.
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.
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