When and why do bees sting? And what happens in the human body when they do? Why are bee stings only a nuisance to some people, but life threatening to others? Biology - Cells And DNA - Learning Points. Bees sting people to protect...

How enzymes power the everyday chemical reactions our bodies rely on.
<

br/>

Biology - Cells And DNA - L
ea
rning Points.
/> A Twig FactPack Film.
Open a discussion on what has been already learnt in a topic,...

Not all plants exist simply on sunlight and water. Carnivorous plants eat meat. Discover how some of these carnivores trap and kill their prey. Biology - Plants - Learning Points. Some plants, often in harsh conditions, have adapted to...

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...

We demonstrate denaturing by adding the enzyme trypsin to photographic film. Strips of photographic film are added to trypsin solution at different temperatures to determine the optimum conditions for the enzyme. In the right conditions...

DNA profiling is one of the world's most powerful forensic tools, but how was it developed and how does it work? Biology - Cells And DNA - Learning Points. DNA profiling helps us to link individuals to crimes and free those that are...

DNA profiling can match individuals to a crime scene using only a few cells. A brief history of DNA profiling and the breakthroughs that have made this possible. Biology - Cells And DNA - Learning Points. DNA is described as a...

A biological catalyst. Enzymes are specialised proteins that speed up biochemical reactions. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

Follow the incredible journey of food inside the body.
<

br/>

Life processes - Body systems - The di
g

estive system />

Learning Points
The digestive system breaks do
w

n food and extracts the...

Case study of the role of the intestines in digestion.
<

br/>

Life processes - Body systems - The di
g

estive system />

Learning Points
The intestine is divided i
n

to the large and small intestine....

यह वीडियो एंजाइमों के विकृतिकरण और उनकी अनुकूलतम स्थिति पर चर्चा करता है। एंजाइमों का विकृतिकरण तब होता है जब उनकी संरचना परिवर्तित होती है, जिससे उनकी गतिविधि प्रभावित होती है। वीडियो में बताया गया है कि प्रत्येक एंजाइम की अपने काम करने...

Zoom into the world of 'Enzymes,' where kids will learn how these tiny but mighty helpers speed up reactions in our bodies! It's a microscopic journey to see the science that makes us work.

This video discusses the advancements in modern medicine related to gene therapy, which aims to replace defective genes with correctly functioning ones to address the root causes of various diseases. By targeting the genes responsible...

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...

Learn what the digestive system does, how it works, the organs involved, and how the villi are adapted for absorbing nutrients.

This video covers:<br/>
- How temperature affects enzymes and the rate <br/>of reaction
- How pH affects enzymes an<br/>d the rate of re<br/>action
- Why enzymes denature
- Was optimum temperature and optimum pH mean

Learn how we digestive enzymes such as amylase, proteases and lipases to break down carbohydrates, proteins and lipids. We also cover where the enzymes are made and what they break each food group down to.

Let's learn about the anatomy of your pancreas!

Visual demonstration of the lab factors that affect enzymes

It introduces enzymes as the biological catalyst. It also describes their chemical structure, types, nomenclature and mechanism of action.

Factors Affecting Enzyme Function explains how changes in pH, temperature, and concentration levels can affect enzyme function.

Have you ever wondered why pineapples sting your tongue? It's because they contain an enzyme called bromelain, which can break down proteins. This means that every time you eat a pineapple, it eats a little bit of you!



In this...

Fertilization. How does it happen? In this video, we discuss the male and female reproductive systems and how they work together to create an entire new human.<br/>

This video explores five fun facts about mouth.