The functions of lipids in human cells
By: Joshua Horn - 257112
Lipids are molecules found throughout the cell with a wide variety of unique functions. They are hydrophobi small molecules and serve a variety of functions, including signaling, cellular structure, and energy storage. Below is a list of various lipid functions throughout the cell. 1) Membrane...
Proteins: The building blocks of life
By: Joshua Horn - 257112
Proteins are a ubiquitous part of the cell and to many are considered the basic building block of life. While a number of other molecules are necessary for life, including nucleic acids, carbohydrates and lipids, the sheer number of proteins and their huge variety of...
The different functions of proteins in cells
By: Joshua Horn - 257112
Proteins are an essential building block of every cell and are ubiquitous throughout the cell. They are involved in almost every process in the cell, from forming structural components to catalyzing reactions to cell signalling and interactions. Proteins are made of amino acids, which each...
How will climate change affect penguins and their habitats?
By: Dorothy Hoffman
With the release of March of the Penguins and Happy Feet, two enormously popular movies featuring penguins, millions of viewers fell in love with these adorable, plucky, flightless birds. Looking like odd little cartoon characters in formal attire, these aquatic birds are well adapted...
By: Maria C Collins
In spring, summer, and autumn, the woodlands, pastures, gardens and parks are brimming with life. You can hear it all around you, birds singing, and insects buzzing and other animals and creatures scurrying to and fro, going about their daily lives. In winter, by contrast...
By: Nan C Avery
All science fair biology ideas can come from almost anywhere. The important part is to find a question that you would like to find an answer. This is called your hypothesis. You will then look for ways to find an answer through experimentation. You...
By: Tami Port MS
The human mouth contains millions of bacteria, most of which do not cause a person any great harm. But the bacteria that naturally exist in the mouth can build up into a biofilm (living layer) called plaque if a person does not practice good oral...
Stem cells explained
By: Katherine Knies
In 1955, Rudolf Virchow, a German physiologist, discovered that cells come from preexisting cells in an organism. These types of cells were later to be called stem cells. Stem cells are cells that keep the ability to divide in the human body. These cells divide...
Biology class activity: Eukaryotic cell structure
By: Tami Port MS
This classroom activity can be used to familiarize students with basic cell structure and encourage them to think about how the membrane system of eukaryotes works. The exercise should be done after the class has been instructed in eukaryotic cell structure and function. Following the...
The diet of the Aye-aye
By: Rena Sherwood
The aye-aye is an endangered species of nocturnal lemur that lives only on the island of Madagascar. With its huge eyes, rat-like teeth, grotesquely long middle toes and scruffy coat and the unfortunate tendency to urinate on anyone that frightens it, the local humans assumed...

 

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