Видеолекция «Молекулярные механизмы пристрастий человеческого организма» академика РАМН И.П.Ашмарина
Увлекательная лекция о структурах и функциях наркотических веществ и физиологических механизмах возникновения пристрастий и зависимостей у человеческого организма
Take a look at the ten enzymes that make possible the ten steps in the breakdown of sugar the process is called glycolysis.
Комплекс Гольджи, животная клетка
Аппарат Гольджи (комплекс Гольджи) — мембранная структура эукариотической клетки, органелла, в основном предназначенная для выведения веществ, синтезированных в эндоплазматическом ретикулуме. Аппарат Гольджи был назван так в честь итальянского учёного Камилло Гольджи, впервые обнаружившего его в 1898 году.
Яйцеклетка и сперматозоиды
Видеосъёмка яйцеклетки, сперматозоидов и процесса оплоотворения под микроскопом.
mRNA Translation (Advanced)
The job of the mRNA is to carry the gene's message from the DNA out of the nucleus to a ribosome for production of the particular protein that this gene codes for.
Originally created for DNA Interactive ( http://www.dnai.org ).
TRANSCRIPT: The job of this mRNA is to carry the genes message from the DNA out of the nuceus to a ribosome for production of the particular protein that this gene codes for. There can be several million ribosomes in a typical eukaryotic cell these complex catalytic machines use the mrna copy of the genetic information to assemble amino acid building blokes into the three dimensional proteins that are essential for life. Lets see how it works. The ribosome is composed of one large and one small sub-unit that assemble around the messenger RNA, which then passes through the ribosome like a computer tape. The amino acid building blocks (that's the small glowing red molecules) are carried into the ribosome attached to specific transfer RNAs. That's the larger green molecules also referred to as tRNA. The small sub-unit of the ribosome positions the mRNA so that it can be read in groups of three letters known as a codon. Each codon on the mRNA matches a corresponding anti-codon on the base of a transfer RNA molecule.The larger sub-unit of the ribosome removes each amino acid and join it onto the growing protein chain. As the mRNA is ratcheted through the ribosome, the mRNA sequence is translated into an amino acid sequence. There are three locations inside the ribosome, designated the A-site, the P-site and the E-site. The addition of each amino acid is a three step cycle: First, the tRNA enters the ribosome at the A-site and is tested for a codon/anti-codon match with the mRNA. Next, provided there is a correct match, the tRNA is shifted to the P-site and the amino acid it carries is added to the end of the amino acid chain. The mRNA is also ratcheted on three nucleotides or one codon. Thirdly, the spent tRNA is moved to the E-site and then ejected from the ribosome to be recycled. As the protein synthesis proceeds, the finished chain emerges from the ribosome. It folds up into a precise shape, determined by the exact order of amino acids. Thus the Central Dogma explains how the four letter DNA code is - quite literally - turned into flesh and blood.
Powering the Cell: Mitochondria
Together Harvard University and XVIVO developed this 3D animation journey for Harvard's undergraduate Molecular and Cellular Biology students about the microscopic world of mitochondria. The animation highlights the creation of Adenosine Triphosphate (ATP) -- mobile molecules which store chemical energy derived from the breakdown of carbon-based food. ATP molecules act as a kind of currency, imparting chemical energy to power all the functional components of cellular activity. This piece is the second in a series of award winning animations XVIVO is creating for Harvard's educational website BioVisions at Harvard. The first program, Inner Life of the Cell, received international acclaim and can be seen both on our website and the BioVisions site.
Cells Cells - Parts of the Cell Rap
This rap was created for a 6th grade science classroom to teach about the different parts of a cell. With its catchy rhythm and rhymes, students of all learning styles and abilities will be able to learn about cells and their functions while having fun!
Original Rap by Ms. Quitmeyer
Today's the day were gonna learn about the cell
If I teach it okay, you'll know it very well
So listen up 6th graders-
-no room left for haters-
lets talk about the building blocks of life- cells that make us.
Cells, cells they're made of organelles
Try to pull a fast one, the cytoplasm gels
The nucleus takes over controllin' everything
The party don't stop 'till the membrane blocks the scene
Inside the vacuole we can float around for hours
Running round with chloroplasts, lovin' sunlight showers
Cells, cells, they're made of organelles
First things first, there's two different types-
animal and plant cells that make up all life.
The little things that make up microscopic cells,
The main structures- yeah, we call them organelles.
Now let's break it down and get some information-
How do cells work? It's a crazy combination!
The cell membrane is the border patrol,
Who can cross over? The membrane lets 'em know
The gooey stuff inside, is called the cytoplasm
It holds the organelles- don't worry, plasm-has 'em!
In the middle of the cell you'll find the big brain,
The nucleus surrounded by nuclear membrane
Don't forget the vacuole filled up with water
It's a basic need for life when this rap keeps getting hotter!
The mitchondria's something every cell needs,
Breaking down the food and releasin' energy.
There's a place inside the cell where chemicals are stored, the squiggly golgi bodies, releasin' even more.
Yo hangin' in the cell is endoplasmic reticulum, synthesizin' enzymes for respiration, and um...
If you still think that this rap is whack, remember ribosomes making proteins gettin' jacked!
Lookin at the plant cell, weird and green
two more parts is all it takes you see?
Cell wall knows what's up when it comes to keepin' structure
Strong with cellulose, this cell can't get much tougher.
C-H- L-O- R-O -- Plast,
These little green machines are havin' a blast
Photosythenisizing- filled with chlorophyll
-they hit the cell club, runnin' up a high bill-
Parts of a Plant Cell
Parts of an Animal Cell
Inside the Cell
The microscopic internal structures within a human cell are shown in this 3D, computer-generated animation. It is an educational general survey of the main organelles that contribute to the cell's function.
The depiction has realistic textures, forms and text, all in a camera "fly-by".
Cell Journey deep Inside
Journey inside the human cell
Journey Inside The Cell
http://www.discovery.org This animation shows how the digital information encoded in DNA directs protein synthesis inside the cell and provides a unique look at the evidence for intelligent design as described in Dr. Stephen C. Meyers book Signature in the Cell. For more information visit http://www.signatureinthecell.com
The Stages of Mitosis
Stages of Mitosis, a promotional piece, begins with a fly-through of cells preparing to undergo mitosis (cell division).
Upon entering a cell we are introduced to various organelles of the inner cell and the key events involved in mitosis.
Cell division involves 7 key stages resulting in the splitting of the nucleus, and ultimately, cell division.
This animation shows the dynamics of the golgi apparatus, a subcellular organelle involved in protein export. Proteins being processed for export are shuttled in vesicles between the membranous layers.
Golgi Apparatus - an animatic
Golgi Apparatus - the function is to process and package the macromolecules that are synthesized by the cell for processing of proteins for secretion.
Music by: Hans Zimmer
Start here - http://www.youtube.com/user/himrdo
Videos inside videos, pictures, and music belongs to their respective owner, and were obtain to use in these presentations for the purpose of educating the viewers. The creativity, uploads, time, and voice belongs to me of course :)
Nucleus, Nucleolus, and Nuclear Envelope
Tried exporting at least 20 different ways. Last ditch effort if this makes it. I don't like macs anymore Mr. Fyfe.
Загадки живой клетки. Иммунитет.
В наших клетках целая Вселенная, живущая по законам Того, Кто ее создал. Незнание законов не освобождает от ответственности. Узнайте больше об иммунитете и вашем организме.
Сперма под темнопольным микроскопом.
Сперма человека под темнопольным микроскопом, увеличенная в 1500 тысяч раз.
ВЕЛИКИЙ ЗАМЫСЕЛ В СПЕРМАТОЗОИДЕ
Сперматозоид это клетка, главное назначение которой заключается в передаче генетических данных мужчины в яйцеклетку женского организма. Под микроскопом сперматозоид можно увидеть, что эта клетка представляет собой устройство идеально подходящее для доставки такого "груза".
Загадки живой клетки
Загадки живой клетки
Introduction to Cells
This is a newly revised 3 minute HD dramatic video choreographed to powerful music, which introduces the viewer to the wonder and miracle of cells. It is designed as a motivational "trailer" to be shown by Biology, Biochemistry and Life Science teachers in middle and high school and college as a visual "Introduction" to this amazing microscopic world.
I wish to thank all of the quality video and music producers whose postings enabled me to create this video for educational use.
Please rate this video and comment. If you like it, please post links to it on your media websites. The more teachers and students who can enjoy the inspiration of the video to excite kids about our cells, the better.
To best enjoy this video, turn up your speakers. The music is very stirring.
Subscribe to my channel for other video trailers in Biology, Earth Science, Astronomy and other topics. I will be releasing new ones periodically. I can customize this video to add your name or school name at the end credits, for a very modest fee. If interested, email me at "email@example.com"
A Real Example of Cell Communication
This 3-D movie is a close look at some of the cell signaling and responses that take place throughout the body during the fight-or- flight response. The dynamic ways in which cells communicate with each other through molecular signals is depicted without focusing on anatomy, vocabulary or chemistry.
For a detailed play-by-play of what is happening in the movie and a higher-resolution version, visit:
For supplemental classroom materials for teachers about cells visit: http://teach.genetics.utah.edu/content/begin/cells/
Question from the comments:
I was wondering how cells know where they are in our bodies. Like how does a cell know if its supposed to be a cell for the surface of our skin, a brain cell, a muscle cell, etc? What makes a new cell thats growing the middle of a muscle know that it's supposed to be a muscle cell, rather than a dif type?
Great question! It has everything to do with the signals cells receive from other cells and what stage of development you are talking about - embryo or human.
This piece on our website may help: http://learn.genetics.utah.edu/content/tech/stemcells/scintro/
In this activity you can send signals to adult stem cells to differentiate them into different types of cells: http://learn.genetics.utah.edu/content/tech/stemcells/sctypes/
This page helps explain what it means for a cell to receive a signal: http://learn.genetics.utah.edu/content/begin/cells/insidestory/
animated 3d cells in the body
cutting edge medical animation of cells
An animated and narrated tour of the animal cell.
A Tour of the Cell
Paul Andersen takes you on a tour of the cell. He starts by explaining the difference between prokaryotic and eukaryotic cells. He also explains why cells are small but not infinitely small. He also explains how the organelles work together in a similar fashion
NDSU VCell Production's animation "Mitosis". For more information please see http://vcell.ndsu.edu/animations.
Mitosis is the process by which the chromosomes in the nucleus of a cell are divided into into two new nuclei. This animation illustrates how the stages of mitosis progress and eventually lead to the formation of two new cells.
Mitosis and Meiosis Simulation
Mr. Andersen uses chromosome beads to simulate both mitosis and meiosis. A brief discussion of gamete formation is also included.
Programming of Life
An exploration of microbiology, information science, and the origin of life.
Harvard Cell Animation.mp4
Cell Organelles And Their Function (BOTH 3D AND MICROSCOPIC VIEWS )
A Video Showing Different Cell Organelles
Cell Structure and Function - Advanced Biotechnology Podcast 1.2
Advanced Biotechnology Podcast 1.2 Presented by the Texas Education Agency. In this lesson, we explore the basic concepts of molecular biology, and compare and contrast the structure and function of prokaryotic and eukaryotic cells.
How Cells Obtain Energy
Cells and energy - Video for Hawthorn Academy Science Classes.
This video explains the processes associated with cellular energy processing.
Important vocabulary -
chloroplast, photosynthesis, mitochondrion, respiration, pgal (phosphoglyceraldehyde) ADP, ATP
3D Medical Animation - What is Cancer?
"What is Cancer?" is a 3D Animation which depicts the growth of a tumor.
(music by: Bjorn Lynne - Blissful Moments, courtesy of www.Shockwave-Sound.com)
Cancer Growth Animation
This video demonstrates how cancer growth happens in human body.
Normal vs Cancer Cells
NCI B-roll: Black and white footage of normal and cancer cells. This segment depicts cell growth, with the first segment displaying normal cells, the second segment (1:20) displaying cancer cells and the third segment (2:38) showing both normal and cancer cells. Differences in ruffling (changes in the cell membrane) and movement are emphasized.This video has no audio.
Cancer Cells vs. Healthy Cells
Learn about the differences between cancerous cells and healthy blood cells. For more information about blood cancers, visit ASH's patient resources webpage http://hematology.org/Patients/.
This animation was featured in the documentary film "Blood Detectives." To learn more about the film, visit http://www.hematology.org/Publications/Blood-Detectives/5246.aspx
Amazing Microscopic HD Video! Paramecium Feeding!!
The oral groove, gullet and the filling and detachment of the food vacuole are clearly visable in this video
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