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Cell Size and Scale

Cell Size and Scale

The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an ameoba proteus, a human egg, and a paramecium without using magnification. A magnifying glass can help you to see them more clearly, but they will still look tiny.

Biocanvas

Biocanvas

At Biocanvas, we think science is beautiful, and we think you should think so, too. Our mission is to provide a more approachable way for audiences to engage with science. By curating captivating science-as-art images, we hope to revitalize society’s knowledge of and passion for scientific endeavors.

Small World Photography Competition

Small World Photography Competition

Small World is regarded as the leading forum for showcasing the beauty and complexity of life as seen through the light microscope. The Photomicrography Competition is open to anyone with an interest in microscopy and photography. The video competition, entitled Small World In Motion encompasses any movie or digital time-lapse photography taken through the microscope.

Cells By the Number

Cells By the Number

Cells are the basic unit of life — and the focus of much scientific study and classroom learning. Here are just a few of their fascinating facets.

Cells Alive!

Cells Alive!

General microbiology information, with images and videos.

HudsonAlpha iCell Online

HudsonAlpha iCell Online

Whether discovering the cell for the first time or reviewing key components, iCell® offers a new way for students at all levels to explore the cell.

BBC Bitesize Cells

BBC Bitesize Cells

All animals and plants are made of cells. Animal cells and plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes. Plant cells also have a cell wall, and often have chloroplasts and a permanent vacuole.

Cells are the Starting Point

Cells are the Starting Point

All living organisms on Earth are divided in pieces called cells. There are smaller pieces to cells that include proteins and organelles. There are also larger pieces called tissues and systems. Cells are small compartments that hold all of the biological equipment necessary to keep an organism alive and successful on Earth.

The Incredible Megacell

The Incredible Megacell

Young cells from all life forms on Earth hurry alone for another day at the Super Cell Academy ...

Cell Structure Interactive

Cell Structure Interactive

Cell Structure Interactive - prokaryote, animal and plant cells.

Cellular Transport Interactive

Cellular Transport Interactive

Cellular Transport Interactive - Membranes, diffusion/osmosis, passive transport and active transport.

How Diffusion Works Animation

How Diffusion Works Animation

View the animation then complete the quiz to test your knowledge of the concept.

How Osmosis Works Animation

How Osmosis Works Animation

View the animation then complete the quiz to test your knowledge of the concept.

How the Cell Cycle Works Animation

How the Cell Cycle Works Animation

View the animation then complete the quiz to test your knowledge of the concept.

New Cancer Therapy ...

New Cancer Therapy ...

A new experimental treatment has achieved what chemotherapy and bone marrow transplants have failed to do: put chronic, relapsing blood cancers into remission.

Five Cutting-Edge Cancer Treatments

Five Cutting-Edge Cancer Treatments

Advances in precision medicine, immunology, and epigenetics are transforming how doctors treat cancer.

Cell Death and Genome Repair

Cell Death and Genome Repair

Scientists have identified the mechanism that decides between cell death and genome repair.

Nanoparticle 'cluster bombs' ...

Nanoparticle 'cluster bombs' ...

These new nanoparticle 'cluster bombs' could make chemotherapy less toxic.

A gene therapy that uses ...

A gene therapy that uses ...

An experimental gene therapy that turns a patient's own blood cells into cancer killers worked in a major study, with more than one-third of very sick lymphoma patients showing no sign of disease six months after a single treatment.

Skin Cancer from Tanning Beds ...

Skin Cancer from Tanning Beds ...

Tanning beds can ring up a steep bill—a whopping $343 million each year in medical costs in the US alone.

How Your Brain Works

How Your Brain Works

Your brain is made of approximately 100 billion nerve cells, called neurons. Neurons have the amazing ability to gather and transmit electrochemical signals -- think of them like the gates and wires in a computer.

The most detailed nerve images ...

The most detailed nerve images ...

The most detailed nerve images ever recorded are also the most psychedelic. New imaging technique reveals the intricate paths of nerve endings.

Human Brain Cells Make Mice Smart

Human Brain Cells Make Mice Smart

A team of neuroscientists has grafted human brain cells into the brains of mice and found that the rodents’ rate of learning and memory far surpassed that of ordinary mice.

Red Blood Cells

Red Blood Cells

Red blood cells perform the most important blood duty. A single drop of blood contains millions of red blood cells which are constantly traveling through your body delivering oxygen and removing waste.

Stem Cells Australia

Stem Cells Australia

Stem Cells Australia brings together Australia's premier life scientists to tackle the big questions in stem cell science.

Stem Cells DNews

Stem Cells DNews

Stem cell articles from DNews.

Antibody Transforms Stem Cells ...

Antibody Transforms Stem Cells ...

In a serendipitous discovery, scientists at The Scripps Research Institute (TSRI) have found a way to turn bone marrow stem cells directly into brain cells.

Tiny human stomachs created from ...

Tiny human stomachs created from ...

Tiny human stomachs created from stem cells - Three-dimensional "mini-stomachs" have been created from human stem cells. The tiny organs measure about 3 millimeters in diameter and can be used as models for the infections that are often precursors to peptic ulcers and stomach cancer.

Stem cells: The secret to change

Stem cells: The secret to change

Unusual, versatile cells hold the key to regrowing lost tissues.

What Happened to the Radical ...

What Happened to the Radical ...

Stem cells: what happened to the radical breakthroughs? Much was promised in the late 1990s, but the challenge of advances such as growing whole human organs has been difficult to deliver.

Cells and the Molecules of Life

Cells and the Molecules of Life

Take a look at cells, and some of their components, starting from the very beginning of life on Earth. Speculate on the origin of the molecules of life and investigate how they combine to create the structure and function of cells.

Small, Small World Nat Geo

Small, Small World Nat Geo

They’re invisible. They’re everywhere. And they rule.

Viruses That Look Beautiful

Viruses That Look Beautiful

These 12 viruses look beautiful up close but would kill you if they could. Infectious diseases like AIDS and hepatitis are never pretty. But the pathogens that cause many potentially deadly infections turn out to be absolutely beautiful when viewed under powerful microscopes.

Macabre Beauty of Medical Photos

Macabre Beauty of Medical Photos

An artist-scientist duo shares nearly 100 images of modern art with a ghastly twist—they're all close-ups of human diseases and other ailments.

Eye Receptor Transplant Promises ...

Eye Receptor Transplant Promises ...

For the first time, the light-sensing cells found in the retina have been grown from scratch in the lab, and then successfully transplanted into the eyes of blind mice.

Inside the Human Body

Inside the Human Body

15 beautiful microscopic images from inside the human body.

iPad App 3D Cell Stain

iPad App 3D Cell Stain

Learn about the cell and all its structures using our new 3D Cell tool. Enjoy the ability to rotate the cell 360 degrees and zoom in on any cell structure. Choose from our list of cell structures to learn more about how each structure functions and relates to the other components of the cell.

iPad App iCell

iPad App iCell

iCell gives students, teachers, and anyone interested in biology a 3D view inside a cell. Included are examples of three types of cells: animal, plant, and bacteria. Learn about the various parts of the cell, which biologists, biochemists, and DNA researchers at the HudsonAlpha Institute study and use to advance the limits of biotechnology.

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