Nucleus

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Where Is It Found?

•ONLY found in Eukaryotic cells, NEVER in Prokaryotic

•Found in both plant and animal cells

Nucleus Structure?

•Fully enclosed in the nuclear membrane

•The nuclear membrane is perforated with numerous pores called nuclear pores

•Nuclear pores regulate the passage of the molecules between the nucleus and the cytoplasm

•Mostly DNA

•A nucleolus is found in the center, and synthesizes and assembles ribosomes and r RNA

•Contains nucleic acids

•Contains chromatin and the cells genetic material.

How does it help the cell?

•The nucleus is the control center of the cell.

•Stores all genetic material

•Controls all heredity characteristics of an organism

•Responsible for protein synthesis, cell division, growth and differentiation

•Site for transcription 

•Aids in exchange of DNA and RNA between the nucleus and the rest of the cell

•Regulates the integrity of genes and gene expression

Other Important Information:

•Ernest Rutherford discovered the nucleus

•The Nucleus joins up with the endoplasmic reticulum

•Nucleus contains all genes that hold the information needed to make proteins  

Where to Study!

(I recommend the crash course)

Crash Course Nucleus Review Video: https://www.youtube.com/watch?v=FSyAehMdpyI

Nucleus Review Video: https://www.youtube.com/watch?v=sL7bE_PA_SE

Quick Summary:

DISCLAIMER: All information in this section has already been mentioned above, this is just a wrap up of all covered.

The nucleus is found in both plant and animal cells, but not prokaryotic.  It is the control center of the  cell and contains all of cells genetic material. The nucleus also plays an important role in the production of proteins.

Reflection:

When we first learned the nucleus, I knew it like the back of my hand. That is why I was shocked to realize I pretty much forgot all about its structure and 1/2 of its function. They main thing I was shocked about was that the nuclear envelope also has pores which kind of acts like the cellular membrane. I already know that the nucleus is the control center and stores genetic information. Also that it is only found in eukaryotic cells, not prokaryotic. To be honest, the nucleus is not my favorite subject, its not that I find it hard, just boring. I think one of the reasons I feel this way is because we have been talking about it since 5th grade. Outside of biology, you could compare the nucleus to the principle. In thinking of our school like a cell, the principle is in charge, just like the nucleus. It is their job to keep the place running right and control operations. 

Citations

Cell-Nucleus . Digital image. Biology-questions-and-answers. N.p., n.d. Web. 26 May 2017.

Nucleus-58a. Digital image. Fthmb.tqn. N.p., n.d. Web. 26 May 2017. <fthmb.tqn.com/rre7UGzPT0ikHX0SjLftYpKPA2U=/768x0/filters:no_upscale()/about/Nucleus-58a34aad3df78c4758d64d1c.jpg>.

Green, Hank. "The Nucleus: Crash Course Chemistry #1." Youtube. Crash course, 11 Feb. 2013. Web. 26 May 2017. <https://www.youtube.com/watch?v=FSyAehMdpyI>.

"Nucleus." Youtube. Learnbiologically, 25 Sept. 2012. Web. 26 May 2017. <www.youtube.com/watch?v=sL7bE_PA_SE>.