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Biologia - Células - Guia do Estudante

Biologia - Células - Guia do Estudante

A nucleosome is the basic repeating unit of eukaryotic chromatin. In a human cell, about six feet of DNA must be packaged into a nucleus with a diameter less than a human hair. A single nucleosome consists of about 150 base pairs of DNA sequence wrapped around a core of histone proteins. The nucleosomes are arranged like beads on a string. They are repeatedly folded in on themselves to form a chromosome.

A nucleosome is the basic repeating unit of eukaryotic chromatin. In a human cell, about six feet of DNA must be packaged into a nucleus with a diameter less than a human hair. A single nucleosome consists of about 150 base pairs of DNA sequence wrapped around a core of histone proteins. The nucleosomes are arranged like beads on a string. They are repeatedly folded in on themselves to form a chromosome.

GEN | Magazine Articles: Understanding of Epigenetics Deepens

GEN | Magazine Articles: Understanding of Epigenetics Deepens

TJ. Gluconeogenesis (GNG) is a metabolic pathway that results in the generation of glucose from non-carbohydrate carbon substrates such as pyruvate, lactate, glycerol, and glucogenic amino acids. While primarily odd-chain fatty acids can be converted into glucose, it is possible for at least some even-chain fatty acids.  It is one of the two main mechanisms used by humans and many other animals to maintain blood glucose levels, avoiding low blood glucose level (hypoglycemia). The other…

TJ. Gluconeogenesis (GNG) is a metabolic pathway that results in the generation of glucose from non-carbohydrate carbon substrates such as pyruvate, lactate, glycerol, and glucogenic amino acids. While primarily odd-chain fatty acids can be converted into glucose, it is possible for at least some even-chain fatty acids. It is one of the two main mechanisms used by humans and many other animals to maintain blood glucose levels, avoiding low blood glucose level (hypoglycemia). The other…

Image from http://leah4sci.com/wp-content/uploads/2015/06/Glycolysis-Reaction-Steps-MCAT-Cheat-Sheet-Study-Guide-Leah4sci.jpg.

Image from http://leah4sci.com/wp-content/uploads/2015/06/Glycolysis-Reaction-Steps-MCAT-Cheat-Sheet-Study-Guide-Leah4sci.jpg.

▶ Steroid Hormone and Hormone Receptor Pathway - Eg. Testosterone, Estradiol

▶ Steroid Hormone and Hormone Receptor Pathway - Eg. Testosterone, Estradiol

imagenes de la celula vegetal con sus partes - Google Search

imagenes de la celula vegetal con sus partes - Google Search

Mindblowing animations that explain medical conditions and human body and organs etc on www.blausen.com!

Mindblowing animations that explain medical conditions and human body and organs etc on www.blausen.com!

Glycolysis, respiration, and the Citric Acid Cycle (Krebs Cycle)

Glycolysis, respiration, and the Citric Acid Cycle (Krebs Cycle)

Great poster to get at the notion that science is based on evidence!

Great poster to get at the notion that science is based on evidence!

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