A fluid-filled compartment inside a cell, surrounded by a membrane.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

We look at the effects of osmosis on the volume of potato and the appearance of red onion cells. Two cylinders of potato are measured and weighed before one is placed in salt water and the other in fresh water. We can see how osmosis...

We use vinegar to remove the shells from eggs without breaking them. Two eggs are placed in a beaker of vinegar, but one is half coated with clear nail polish. The exposed shells dissolve over time and the eggs swell as more water moves...

Find out how reptiles evolved from early amphibians, and the adaptations that allowed them to thrive on dry land. Biology - Animal Kingdom - Learning Points. A Twig Curriculum Film. Delivering key learning points. Get straight to the...

Journey inside the cell to see how the cell membrane acts as both a barrier and an entrance. How does it take in nutrients while keeping out potentially damaging molecules? Biology - Cells And DNA - Learning Points. The cell membrane...

The movement of water from a less concentrated solution to a more concentrated one, through a partially permeable membrane. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...

Every organism is made up of cells, but what exactly is a cell?
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Life processes - Living pro
c

esses - Cells />

Learning Points
A c
e

ll is the most basic unit of life.


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Do you know complex our complement system is? Check out "The Complement System Song"

This song goes over the entire process from the complement system being made up of proteins that are...

Spread your wings and soar with the 'Bald Eagle,' discovering the fascinating life of America's majestic bird! This video promises an exciting flight into the world of strength and freedom, perfect for curious young minds.

Delve into the fascinating process of hearing and how our ears transform sound waves into signals for our brains to interpret. Learn about the intricate anatomy of the ear and how it enables us to experience the richness of...

Winter sports can be lots of fun but when it s wet and cold playing with wet socks is no fun at all. Now, a British company as scored a goal after creating what it s claiming to be the world s first waterproof football socks.

Dive into the fascinating history of portable music players and the technological advances in remote controls. From the revolutionary Walkman of the late 1970s to the intricacies of cassette mechanics and the progression from infrared...

Explore the transformative history of telecommunications technology, from the invention of the telephone by Alexander Graham Bell to the modern smartphone. Discover how early devices like the phone and TV revolutionized communication...

What do we do if the foetal sac tears during pregnancy? Doctors can do surgery on a foetus before it’s born. That’s amazing. But, to do this, they need to pierce the sac that holds the amniotic fluid around the foetus. Patching up this...

This video covers

- What diffusi
on is
- How
it works
- How it applies to
cell membranes
- The 3 factors that affect the rate of diffusion (concentration gradient, temper

ature, surface...

This lesson covers:

- What active transpor
t it
- How it's different to
diffusion
- How root hair cells are adapted to absor

b mineral ions


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

Learn all about the Prokaryotic and Eukaryotic Cells with this fun educational music video Human Cells . Brought to you by KLT.

PICV Pressure Independent Control Valves, in this video we learn how PICV's work, where we use PICV's, what they look like, the basic working principles behind them to help you learn mechanical engineering.<br/>

Cell Material Transport describes the functions of membrane-bound cellular organelles by explaining how each facilitates transport of materials within cells.

The Prokaryotic Cell examines a prokaryotic cell by describing its structure.

Cellular Respiration analyzes the process of cellular respiration by describing how cells and organisms acquire and release energy.

Plastids and Mitochondria examines energy transformations by describing the fundamental roles of plastids and mitochondria.

The Endosymbiosis Theory explains evidence supporting the scientific theory of the origin of eukaryotic cells by describing the process of endosymbiosis.

This brief video tutorial briefly discusses resting membrane potential: 0:00​​. Introduction 0:53. What is a resting membrane potential? 1:33. How is a RMP measured? 4:12. How do we get a RMP at cell membranes? 9:04. How is the RMP...