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The pituitary gland is a small suspension part of the brain. Within it are two lobes, the anterior and the posterior lobes. Within these two lobes are five (5) different types of cells:-

  • Chromophil
  •  Acidophil
  • Basophil
  •  Chromophobe
  • Glial

I am one of these cells. I am important for the development for the oocyte. I am a Basophil of the pituitary gland and I secrete hormones into the blood stream to promote the body’s reproduction organs to start and maintain the reproductive cells, it which they create. Yes, the pituitary gland is found in both males and females. One thing that you should note, my other cell conterparts are responsible for many other hormones that pertain to different functions and services of the body. However, my duties are solely to that of reproduction.

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Add your thoughts heLook out I am about to Hit you!! With my cell. ( For educational purposes I cannot put the name of my cell in that first sentence).

Dear Rhonda, the oocyte.
I am Brandon, the sperm cell and I am trying to attempt to communicate to you. You may be wondering but how the in the world is this possible when you’re in a different body compared to mines. Well, to be honest we can only communicate once we’re in the same body, so yes I am very close by, I hope!! This can only occur due to sexual interactions between the body I am in and the body you are in. However, in some cases, if we belong to the same body, which in this case our parent is a hermaphrodite.

Before I meet you, ( prior to fertilization), I release a hormone, known as mass sperm proteins, or MSP. These proteins bind to receptors on your other membrane, which is exactly like a ligand binding to a receptor. This process is known as long distance communication, Endocrine signalling.

MSP is used by the sperm to stimulate the ovary to undergo oocyte maturation and contraction of the ovarian sheath. This prepares the oocyte and releases it for fertilization to take place.

References.
Michael A. Miller, Sung Ming han, and Pauline A. Cottee. ” Sperm and Oocyte communication mechanisms controlling Fertility. Accessed on November 23rd, 2013 .http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2963114/re… (optional)

BiochemMystery MaNiAcS

This is my life…. I am an Oocyte (EGG) Cell!

 

 

          In research and development, the oocytes and embryos of Xenopus Laevis are widely used as model systems as their handling and manipulation is easily achieved. Oocytes are tetraploid cells (having four sets of chromosomes) located within the ovarian lobe of adult female frogs and are surrounded by a layer of follicle cells. The large nucleus within the oocyte is called a germinal vesicle and contains genetic information and mitochondrial DNA.

            It is the largest single cell in the body (filling up the ovarian volume) and has many similar structures to that of a somatic cell. Oocytes have two poles, the animal pole and the vegital pole. There are permeable to small molecues but when fertiliztion does not occur, they convert to impermeable molecules. 

         The oocyte is an…

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Posted: April 24, 2013 in Uncategorized

Hello Guys.

Its Exam time at the university. When it’s over I shall continue showing the world of biochemistry.

Any questions or queries, message me on Facebook (:

http://www.facebook.com/brandonraphael.mohammed

Brandon. (:

 

This quiz is purely on enzymes only.

1. What class of enzymes breaks down substrates by adding or losing, hydrogen and oxygen?

A) Hydrolases

B) Transferases

C) Oxidoreductases

D)Ligases

 

2. Ligases is the only one of the six major classes of enzymes to

A) Undergo hydrolysis

B) Combine molecules

C) Oxidise a substrate

D)Rearrange the structure of a substrate.

 

3.Uncompetitive Inhibitors binds to

A) Active site only

B) Enzyme-substrate complex only

C) Both the free enzyme and enzyme-substrate complex

D) To the substrate molecule only

 

4. Mixed Inhibitors binds to either the free enzyme or to the enzyme-substrate complex. How does this affect Vmax and Km?

A) Nothing is affected

B) Vmax increases and Km can increase and decrease

C) Vmax is reduced and Km can increase and decrease

D) Vmax remains constant, while Km increases

 

5) Which type inhibitor binds only to the active site?

A) Non-competitive

B) Uncompetitive

C) Competitive

D)Mixed

 

Best of luck.

Thank you for you time.

Wordle

Posted: April 7, 2013 in Uncategorized

Wordle

Please take into consideration, that this blog is an assignment given to us by our teacher. I am using this blog to introduce biochemistry into the lives of people that know little about it.

If you wish to create your own wordle for your site or blog, etc. you can @ http://www.wordle.net/create

Brandon. (:

Wordle!!

Posted: April 7, 2013 in Uncategorized

Wordle!!

This was a great, entertaining video about enzymes

Biochemistrystuffies

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