Proteins are complex macromolecules that are considered 1 of the 4 macromolecules that make up life. Proteins have many functions beyond being structural components of cells.

What is an amino acid? Learn about the structure, classification, types and functions of amino acids in this fun video.

What is a disulfide bond? Why are disulfide bonds so important in biochemistry? Find out these answers and more in this video!

Ribosomes are cell organelles with a peculiar structure and function. In this video, will talk about many things ribosomes, especially their roles in protein production and the differences between the types of ribosomes.

Almost everything you could want to know about Saturn's sixth largest moon, Enceladus.

Hair resists decay even after death due to keratin, a structural protein. The structure and chemical composition of keratin make it difficult for organisms to break it down. Hair outlasts most other soft tissues due to the insoluble and...

A molecule made up of a relatively short chain of amino acid building blocks.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

Large molecules that are polymers of amino acids, linked in long chains by peptide bonds, and usually folded into a rough ball.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using...

The Earth is billions of years old and was once a very hostile place. Eventually, a single cell was formed that evolved and reproduced. What conditions produced this first life on Earth? Biology - Cells And DNA - Learning Points....

DNA carries genetic information to produce proteins and build new cells: a process at the heart of all life on Earth. Biology - Cells And DNA - Learning Points. Deoxyribonucleic Acid (DNA) carry the genetic code required to make protein...

Proteins are at the root of virtually all bodily functions, from growth to metabolism to transporting oxygen around the body. Learn how your body makes or ingests all the protein you need. Chemistry - Chemical Industries - Learning...

The structures inside cells that synthesize proteins. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...

The chemical reactions that occur in all living cells to extract, convert, and use the energy from food, to fuel all other cell processes. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...

This video is explaining how nitrogen cycle works for kids.

Naveen Jain reveals his unique collection of meteorites, showcasing the profound connection between space artifacts and human curiosity.

Dietary supplements have become a staple of the American diet, with half of all American adults taking a multivitamin or other dietary supplement regularly. But how much of the supplements craze is backed by research? With a panel of...

In this video, we cover:

- What nutrients are and why we need each of
them
- Specifically we cover carbohydrates, lipids, proteins, vitamins, minerals, fibre

and water

Exam
board specific info:
AQ
A -...

In this video, we cover:

- What enzymes
are
- How en
zymes work
- The difference between the lock and key model and the in

duced fit model


Exam board specific info:r/>AQA - Suitable for everyone
IG
CSE...

Photosynthesis. What is it? How does it work? Why do plants do it? What is all that glucose used for?

In this video we recap chromosomes and then explain what DNA is, what genes and the genome are, and how we can use them to track the migrations of early humans.

This video covers:

- The structure of the kidneys and urinary s
ystem
- The structure of t
he nephron
- How filtrate is filtered from the glomerulus to the B
owman's capsule
- Which substances are reabsorbed from...

This video covers:<br/>
- What happens when the kidneys stop working (kidn<br/>ey failure)
- How we can<br/> treat kidney failure
- What dialysis<br/> is, and how it cleans the blood
- How a kidneys transplant works

This video covers:

- Examples of polymers that occur naturally, inclu
ding:
- Polypeptides, which are made of a
mino acids
- DNA, which is made
of nucleotides
- Carbohydrates, which
are made of sugars
-...

Dr. Algae talks about the importance of choosing healthy foods to eat. He revisits The Fabulous Five Food Groups and focuses this lesson on the meat group.