The term ‘alkaloids’ may be unfamiliar to most of us but if I start naming some examples which fall into this group of ‘nitrogenous bases secondary metabolites’, you will know what I mean. Some of the big names include morphine, quinine, strychnine, nicotine etc. basically a continuous list of –ine’s. The thing to note is that though the alkaloids were attributed to pharmacologically active bases derived from plants however, animals (including us!), insects and microbes also produce them.
So…I haven’t written a sole biology blog post in such a long time so I thought I would share some of the knowledge covered in class, more specifically on exciting enzymes.
Enzymes are biological catalysts made by living organisms which speed up chemical reactions. Each cell in our bodies is like a factory, constantly using up raw materials to turn them into useful products and also resulting in waste products. These reactions are usually slow if unaided by either heat or enzymes. This can be annoying in everyday life, for example, delayed respiration rates which rely heavily on enzymes. The food we eat in turn become the energy we use (vastly simplified). Continue reading
This week I have received some exciting news. No, I didn’t win the lottery, if that’s what you’re thinking. Or discovered a cure for cancer. I received a letter from a certain university which more or less confirmed my research placement for the summer of 2k17. However it’s is on the condition that I am accepted through the Nuffield summer placement. Without exaggeration, I opened the acceptance email and I gave myself a high five (sad, I know).
The short email was formal of course but I would like to summarise it to a brief ‘you go girl!’. This was I had waited for, my chance to discover a side of medical research, which is fundamental to medical discoveries. I will be undertaking a 4-6 week journey through the world of research based around infection, immune system and inflammation, so I decided it was appropriate to write this post surrounding this matter. So without further ado, let’s get started.
Stem cells, and nope I don’t mean the acronym for science, technology, engineering and math which this blog is focused on. (hint hint – self-promotion, there are also many other interesting posts which Susan and I have written). I mean the unspecialised cells which have the ability to cure currently untreatable diseases. In plants, these cells are known as meristems, usually found in the root and shoot tips. In our bodies there are two types of stem cells. Continue reading
One good subject to write a blog post on is something you’re passionate about. Something you want to exclaim to the world. For me, one of them has to be evolution. Hank Green, a science educator (probably more well-known as half of vlogbrothers) made an excellent and hilarious video on some facts that simply cannot be disproven. Check that out here – Facts are Facts..OK?
I had a substitute teacher for Religious Education class the other day and I was reading The Selfish Gene by Richard Dawkins. Through coincidence the teacher happens to despise Dawkins (probably because he’s an advocate for atheism), and he saw the book on my friend’s desk.
The human genome is estimated to contain between 20,000 and 25,ooo protein coding genes, however the number of proteins present within the human body is far greater that this. Within humans and other organisms a variety of proteins must therefore be expresses from the same gene. This is a result of alternative RNA splicing and post translational modification.