Single, double and triple bonds are explained with the help of the spherical cloud model. This is another way to find Lewis formulas. Later, it can also be used to recognize the spatial structure of the molecules. Original: "Wolfgang Dukorn" Original: German. All translations in this video have be
Molecules are compounds of non-metal atoms. But how does the bond come about? They cannot give up or absorb electrons completely, because both partners want to have more. Using the fluorine molecule as an example, the electron pair bond is explained with the help of the energy level diagram. Origin
Antibodies are the warriors inside our body. They are part of our immune system, recognising and fighting against bad foreign invaders, called antigens. Antibodies can bind to a broad range of antigens, and are produced by cells of the immune system, known as B-cells. To learn more about antibodies
Click here to see more videos: https://alugha.com/FuseSchool In the first part of this video we looked at diffusion to move gases and osmosis for the movement of water, from high concentration to low concentration down their concentration gradient. Active transport works in the opposite direction
Climate change, crises and conflicts: The challenges we face in our world today are big – too big for just one country to meet. That’s why we need the United Nations. It’s the sole forum in which all states take part as equals to find solutions together and make them binding for all. Germany is com
The hydrogen bonds among alcohol molecules are explained and compared with carbonyl compounds. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
The topics of this video are: alpha-amino acids, from which peptides and proteins are built. Peptide bond formation Cleavage of the peptide bond Peptide structure Structure of proteins The structures of the proteins are not explained: primary, secondary, tertiary and quaternary str
This narrated animation from Interactive NOVA: "The Secret of Life" shows the double helix structure of DNA and how the molecule replicates. The segment illustrates how DNA "unzips" to form templates for the new strands and how complementary nucleotides bind together like the rungs of a ladder. This
What is a coronavirus? Where do they come from? How can I protect myself? Watch this Q&A from the World Health Organization for the answers. For more information: https://www.who.int/health-topics/coronavirus Click here to see more videos: https://alugha.com/WHO WHO: Coronavirus - questions and
Click here to see more videos: https://alugha.com/WHO How to protect yourself against the new coronavirus? Learn how to wear and dispose of masks correctly. For more information, please visit : https://www.who.int/emergencies/diseases/novel-coronavirus-2019 What is the correct way to wear and dis
COVID-19 is an infectious disease caused by a new coronavirus introduced to humans for the first time. It is spread from person to person mainly through the droplets produced when an infected person speaks, coughs or sneezes. Click here to see more videos: https://alugha.com/WHO Watch this short
Click here to see more videos: https://alugha.com/WHO There are simple things we each must do to protect ourselves from #COVID19, including 👐 washing with 🧼 & 💦 or alcohol-based rub. WHO is launching the #SafeHands Challenge to promote the power of clean 👐 to fight #coronavirus. Join the chall
