By: Jeff Casto
The Golgi apparatus is a tiny, cellular organelle with a big job. Usually located near the nucleus, it is responsible for modifying, packaging, and distributing proteins and other macromolecules. In animal cells, there is usually only one Golgi apparatus, but plant cells often have more...
By: Christopher Brown - 292336
Over the last 300 years, scientists estimate that more than 150 vertebrate species have become extinct. There was the dodo, the Tasmanian tiger, and most recently the black-horned rhino. Now, according to researchers at Australian National University, we may have another, more prominent species to...
Functions of membrane proteins
By: Effie Moore Salem
Membranes are thin sheets of tissue that cover, connect or protect organs in humans and proteins are bodily material that are, essentially, the building blocks of all cells. The human body is composed of various forms of cells clumped together to perform certain functions. What...
By: Stefam Miller
The CellThe cell is a basic building block for all living things, without it, life would not exist. Bacteria and the parasite that causes malaria consist of single cells, while plants and animals are made up of trillions of cells. Most cells are spherical or...
By: Stacey Foxworthy
So what is RNA exactly? We hear a lot about DNA and how it contains the basic genetic blueprints for all living organisms. But what about RNA, the structure that seems to be overshadowed by the larger than life DNA molecule? The fact of the...
By: Stacey Foxworthy
Ribosomes play a vital role in the continuation of life on this planet. Proteins consisting of amino acids are an essential component of life. Ribosomes are responsible for assembling these very important structures. Translation is the process by which ribosomes are able to combine the...
By: Ogo A. Bellard
In 1998 James Thomson produced the world's first human stem cell line, which is a single stem cell that is manipulated to divide into new stem cell clones producing a stem cell line. Whilst this opened up a whole new very promising area in genetic...
By: Heather Lyon
Meiosis is the complex two part process of cellular division that creates sex cells or gametes (notably sperm and eggs). Meiosis is important because it has a chromosome reduction phase that halves the chromosome number in the gametes so that the number of chromosomes in...
By: Barnabas Stinson
Cellular membranes are mostly composed of lipids, but depending on which part of the body the cell is located, it can also contain a very large amount of protein. Membrane proteins have various functions. The major two, which I will talk about, are transport and...
By: Robert Randle - 364051
The great controversy with stem cell research is the fine line defining what constitutes "life" or even more specifically, when one becomes a "human being". Opponents of funding stem cell research believe destroying embryonic stem cells are the equivalent of murder. There is of course...

 

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