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Human Physiology : What Is a Nucleotide?

Nucleotides are little components that make up DNA, and they are connected by phosphate molecules. Learn about the components of nucleotides, which includes phosphate groups, sugar molecules and nitrogen bases, with information from a science teacher in this free video on physiology and the human body. Expert: Janice Creneti Bio: Janice Creneti has a BS in secondary science education and a BA in biology from Boston University. Filmmaker: Christopher Rokosz
Категория: Howto & Style
Время: 00:01:08.250
Теги: physiology biology chemistry human body biochemistry cells organs science medicine medical doctors
 

Ch 8 Nucleotides (Biochemistry)

I went kinda fast in this one b/c I wanted to get it under 15 mins. Thank goodness for the pause button! Make sure to review Chargaffs rule which says the # of pyrimidines = # purines
Категория: Education
Время: 00:10:30
Теги: nucleotides nucleosides biochemistry DNA RNA pyrimidines purines thymine dimers
 

Nucleotides

This video is for students studying AS Biology and this video will teach them all about Nucleotides.
Категория: People & Blogs
Время: 00:07:51
Теги: Nucleotides
 

Nucleosides, Nucleotides & Nucleic Acids

This webcast introduces the structure of the nucleic acids and their monomeric units, the nucleosides and nucleotides.
Категория: Education
Время: 00:05:28.500
Теги: organic chemistry DNA RNA nucleosides nucleotides nucleic acids
 

PHYSIOLOGY; REVIEW OF NUCLEOTIDES, NUCLEIC ACIDS, VITAMINS & MINERALS by Professor Fink

Review of Biological Chemistry, including Nucleotides, Nucleic Acids, Vitamins & Minerals. Reference is made to the components of each nucleotide: a 5-Carbon sugar (ribose or deoxyribose), a nitrogenous base, and phosphate. Purine bases (adenine & guanine) and Pyrimidine bases (thymine, cytosine & uracil) are described. Special reference is made to the high energy nucleotide, Adenosine Triphosphate (ATP), as well as AMP and ADP. Both the molecular structure of RNA is presented, and the molecular structure of DNA. Reference is made to complementary binding of bases and the Double Helix structure of the DNA. Clarification is given to the terms: Chromatids, Chromatin (uncoiled) Shape & Chromosomes (coiled-up) Shape of the DNA molecule. The principal functions of the lipid-soluble vitamins (retinol, calciferol, tocopherol & phylloquinone) & water-soluble vitamins (ascorbic acid, niacin, riboflavin & pantothenic acid) and the macronutrient minerals (calcium, phosphate, sodium & potassium) & micronutrient (trace) minerals (iron, iodine, copper & zinc). Reference is made to anti-oxidants, goiters & anemia.
Категория: Education
Время: 00:42:09.750
Теги: Physiology Biological Chemistry Nucleotides Nucleic Acids ribose deoxyribose nitrogenous base Purine bases adenine guanine Pyrimidine bases thymine cytosine uracil Adenosine Triphosphate ATIP AMP ADP RNA DNA Double Helix Chromatids Chromatin Chromosomes macronutrient minerals trace minerals anti-oxidants goiters anemia Professor Fink www.professorfink.com
 

Biology:DNA Polymerization-Triphosphate Nucleotide

www.mindbites.com for a bundle of videos on DNA Replication Basics. For aneven broader bundle of videos that cover Molecular Genetics and DNA Replication basics, check out www.mindbites.com . To search for topic-specific help in our library of 400+ video products for Biology, please refer to our Biology category at: www.mindbites.com . To check out our full Biology video course, with 390+ videos included, refer to: www.mindbites.com . Or, for access to this single video, go to: www.mindbites.com Meselson and Stahl determined that DNA is replicated using the semi-conservative method, which means that the DNA opens down the middle, and each side acts as a template for the new strand. But this answer only produces more questions. How does the polymerization of the new strand of DNA happen? Polymerization is an endemic process (meaning it requires energy), and not spontaneous. It also required joining of the sugar-phosphates, in addition to the nucleotides. Finally, it requires an enzyme, known as DNA polymerase. Professor Wolfe explains how triphosphate nucleotides make the polymerization process possible. These triphosphate nucleotides float freely within the nucleus of the cell, and each DNA base exists in a triphosphate nucleotide form. The energy that is released by the breaking of the triphosphate bond is what provieds the energy for the polymerization of DNA. Taught by Professor George Wolfe, this lesson was selected from a broader, comprehensive course, Biology.
Категория: Education
Время: 00:02:11.250
Теги: education teaching tutor prep lessons
 

Journey of the Nucleotides

DNA transcription and translation in stop-motion with yarn as medium.
Категория: Film & Animation
Время: 00:01:30
Теги: DNA RNA stop-motion yarn genetics science
 

DNA nucleotides and dehydration synthesis

This video provides a brief description of DNA nucleotide structure and the process by which they can be connected to form larger DNA molecules.
Категория: Science & Technology
Время: 00:00:40.500
Теги: nucleotides DNA dehydration synthesis synthesis biology phosphate dehydration nucleic acid nucleotide sugar nitrogenous base nitrogenous base link join bond water thymine adenine guanine cytosine genes
 

Nucleotide Metabolism 1

Nucleotide Metabolism
Категория: Education
Время: 00:10:10.500
Теги: Nucleotide Metabolism
 

Nucleotide Metabolism I

This course is part of a series taught by Kevin Ahern at Oregon State University on General Biochemistry. For more information about online courses go to ecampus.oregonstate.edu for the rest of the courses see www.youtube.com 1. Nucleotides consist of a) sugar, b) nitrogenous base, and c)...
Категория: Education
Время: 00:38:33
Теги: oregon state university osu ecampus online lecture general biochemistry chemistry science biology online lecture course class
 
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