https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv Available now! en-us 2021-10-07 18:44:35 UTC 2021-10-09 05:02:50 UTC hello@padlet.com pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802499776 Cell nuclei are approximately 5 micrometers in diameter, and are composed of 5 major components.]]> 2021-10-08 13:20:09 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802499776 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802502666

The nucleus is by far the most important eukaryotic organelle, it's one of the cell's defining characteristics and  set eukaryotic cells apart from prokaryotic cells!

Serves as the cell’s genetic library and facilitates the interpretation of these genes 

The nucleus provides separation of DNA from the cytoplasm and protein synthesis, allowing eukaryotic cells to better regulate protein and RNA production.

It is the main control center of the cell, and functions similarly to a brain.

A eukaryotic cell cannot survive without a nucleus!

]]> 2021-10-08 13:21:18 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802502666 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802505809 The four major functions of the nucleus are outlined through the process of transcription and translation.]]> 2021-10-08 13:22:37 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802505809 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802510203

The nucleus was the first organelle to be discovered by scientists.

10% of the cell’s volume is occupied by the nucleus.

Although it is not common, some cells do develop with more than a single nucleus. Double the brainpower!

]]> 2021-10-08 13:24:04 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802510203 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802515582 2021-10-08 13:25:54 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1802515582 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803434391 2021-10-08 23:37:12 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803434391 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803437486 The nucleus carries the genetic code of an organism - The primary function of the nucleus is actually to express the genetic information that it houses, coding which determines the amino acid chains and the construction of specific proteins. The deoxyribonucleic acid molecules present in the organelle allow the cell to maintain its unique identity throughout the processes of cell growth and division. Controls the hereditary characteristics of an organism.]]> 2021-10-08 23:41:54 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803437486 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803438136 Serving as a site for messenger ribonucleic acid synthesis - The genetic code is first transcribed into a range of mRNA molecules, each molecule containing the necessary information to create a protein. Although mRNA is most common, the nucleus is also responsible for the synthesis of other types of RNA involved in the process of protein synthesis. The nucleus additionally serves to regulate the amounts of mRNA supplied to the cytoplasm, a quantity that varies from cell to cell. ]]> 2021-10-08 23:42:52 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803438136 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803438425 Directing protein and enzyme synthesis - After transportation through the nuclear pores in the nuclear envelope, the mRNA molecules attach to ribosomes in the cytoplasm and endoplasmic reticulum, where they are translated and proteins are synthesized. Proteins which are then expelled from the cell will function as enzymes, crucial to the body's chemical processes.]]> 2021-10-08 23:43:19 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803438425 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803438679 Controlling cell growth and division - The storage of DNA in the form of chromatin within the nucleus, packed and wound tightly with the help of histones, prevents it from spilling out during cell division. DNA is unwinded prior to division, forming chromosomes which are then split.]]> 2021-10-08 23:43:42 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803438679 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803445269 2021-10-08 23:54:16 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803445269 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803447509 Nucleolus: A dense structure containing RNA and proteins along with nucleolar organizers, the nucleolus' main function is the formation of ribosomal RNA and ribosome biogenesis. The nucleolus transcribes and assembles rRNA subunits, which combine during protein synthesis, creating ribosomes.]]> 2021-10-08 23:57:58 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803447509 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803447715 Nuclear Envelope: A double membrane that separates the organelle from cytoplasm, encompassing the contents of the nucleus. Similar to the cell membrane, the nuclear envelope is composed of a phospholipid bilayer, which allows the envelope to regulate the transfer of materials and contributes to the structure of the nucleus.]]> 2021-10-08 23:58:13 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803447715 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803447928 Nucleoplasm: A semi-aqueous substance similar to cytoplasm. The nucleoplasm cushions and protects the contents of the nucleus, holding it’s structure.]]> 2021-10-08 23:58:34 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803447928 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803448088 Chromatin: Chromatin is comprised of subunits known as nucleosomes, sections of DNA which are looped around histone "anchors". These nucleosomes are then packed into solenoids, a spiral-like structure in which more histones are added to support the chromatin structure. DNA in eukaryotic cells, unlike prokaryotic cells is extremely condensed. 23 pairs of chromosomes condense further out of chromatin prior to cell division.]]> 2021-10-08 23:58:49 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803448088 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803448241 Nuclear pores: Abundant across the nuclear envelope's phospholipid bilayer, nuclear pores allow materials to enter and exit the nucleus, moving from the cytoplasm to the nucleoplasm.]]> 2021-10-08 23:59:03 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803448241 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803458687 The Agency for Science, Technology and Research (A*STAR), based in Singapore, discovered in 2013 that the deviation of genes from their correct position can have dire consequences for the human body, emphasizing the importance of proteins lamin A (Lmna) and lamin B receptor (Lbr) in holding genes in the form of heterochromatin. The slightest relocation of these genes will snowball, causing major bodily harm. Beginning with the malfunction of these genes, heart failure, vascular disease and muscle wasting will follow.]]> 2021-10-09 00:13:20 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803458687 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803481330 “Nucleus.” Encyclopædia Britannica. Encyclopædia Britannica, inc. Accessed October 9, 2021. https://www.britannica.com/science/nucleus-biology. 
“Nucleus Structure Crucial to Understanding Diseases Discovered.” ScienceDaily. ScienceDaily, February 8, 2013. https://www.sciencedaily.com/releases/2013/02/130208110255.htm. 
“Translation.” Encyclopædia Britannica. Encyclopædia Britannica, inc. Accessed October 9, 2021. https://www.britannica.com/science/translation-genetics. 
Shaziya Allarakha, MD. “What Are the 3 Functions of the Nucleus?” MedicineNet. MedicineNet, February 12, 2021. https://www.medicinenet.com/what_are_the_3_functions_of_the_nucleus/article.htm. 
“The Nuclear Envelope.” Encyclopædia Britannica. 
Bailey, Regina. “What Is the Nucleus?” ThoughtCo. ThoughtCo, November 6, 2019. https://www.thoughtco.com/the-cell-nucleus-373362. Encyclopædia Britannica, inc. Accessed October 9, 2021. https://www.britannica.com/science/cell-biology/The-nuclear-envelope#ref37405. ]]> 2021-10-09 00:43:49 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803481330 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803554323 2021-10-09 02:14:22 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803554323 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803556502 2021-10-09 02:16:46 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803556502 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803557481 2021-10-09 02:17:54 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803557481 pchangkasiri1 https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803686600 2021-10-09 05:02:15 UTC https://padlet.com/pchangkasiri1/eyz1t7olf3hektrv/wish/1803686600