Membranes and cell diffusion: understanding the phenomenon
By: Michael Gotama
Diffusion is the movement of particle from outside to inside through a membrane cell of living thing, vice-versa, the movement of the particle is from an area which has a high concentration gradient to an area which has a low concentration gradient. There are three...
Hereditary versus somatic DNA mutations
By: Sean Lockwood
Mutations have worked hard over the last few millennia to turn us from bacteria into complex sentient life forms capable of writing on a world-wide electronic net. The basics. And for all that hard work they usually only get press only when we hear...
Understanding camel behavior
By: Kelli Polsinelli
I was visiting an animal sanctuary located in Ontario Canada some years back. While there I became inquisitive of a sound I kept hearing. Being a rather adventurous type, I eagerly went to find out who or what was making the sheep like noises. The...
Information about Adelie penguins
By: Frances Stanford
The Adelie penguin (scientific name: Pygoscelis adeliae) is one of the species of penguins that are native to Antarctica. It is the bird that breeds the farthest south and therefore in the coldest temperatures. Ross Islands has the main colony of this species of penguins...
By: Wendy R.
The majority of human genes are expressed in forms of proteins. In order for these proteins to be produced, DNA has to replicate, and than transcribe for RNA. DNA is a double stranded helix which is wound tightly. Making up this helix is a sugar(deoxyribose)...
Selective bacterial growth media: MacConkey's and mannitol salt
By: Tami Port MS
A growth medium (plural: media) is a mixture of nutrients, moisture and other chemicals that bacteria need for growth in a laboratory environment. Media can be solid, such as Jell-o-like agar that is poured into the bottom half of a Petri dish, or media can...
Book reviews: Why Evolution is True, by Jerry A. Coyne
By: Magda DH
The theory of evolution has huge explanatory and predictive powers and it is also, philosophically, a wonderful one to behold: it shows a unity of all living things and our human connection to them all; through the billions of years and millions of generations, from...
By: Amanda Mittra
How To Become A Botanist * It is rather strange that we are often told that we must have a dream first to reach a goal. Surprisingly, what we end up in life later on from our most early years of wishes and dreams...
By: Imonikhe Ahimie
Engineering can be defined as the designing, making and putting to use of engines and machinery whilst biology may be defined as the study of the processes that underlie the process that we call life. Bioengineering, incongruous as the term may seem, is a...
Overview of cell biology
By: Tami Port MS
For some reason students rarely seem to get excited about cell biology, a class that is typically required for anyone entering into the field of health care. In the cell biology course that I teach, to help perk up interest in the cellular world, I...

 

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