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Mutation
A change in a DNA sequence. 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 concepts and key curriculum...
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Cytoplasm
The thick liquidy medium that fills all cells, and is contained by the cell membrane. The cytoplasm is where most of the cell's chemical reactions, such as glycolysis, take place. A Twig Science Glossary Film. Key scientific terms...
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Endocytosis
The process by which a cell can take in material from its environment by first engulfing it with its cell membrane. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Nucleic acid
A class of large polymer molecules consisting of repeating units called nucleotides. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Active transport
The use of energy to move particles across a cell membrane from a lower concentration to a higher concentration. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Antibiotic resistance
The ability of bacteria to survive exposure to an antibiotic, often by producing a protein that disables or prevents transport of the antibiotic into the cell. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds...
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Asexual reproduction
Reproduction involving just one parent, without the mixing of genetic material with another individual. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Algae: Simple Photosynthetic Organisms
Very simple organisms that can photosynthesise like plants, but do not have complex features such as roots, stems, or leaves. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise...
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Anaerobic Respiration: Energy Production Without Oxygen
Cellular respiration in the absence of oxygen. Like aerobic respiration, it converts glucose into usable energy, in the form of ATP. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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DNA replication
An essential stage in cell division and reproduction, allowing genetic material to be copied into a new cell. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
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Vacuole
A fluid-filled compartment inside a cell, surrounded by a membrane. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Multicellular
Made up of more than one cell. 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 concepts and key...
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Chromosome
A threadlike strand of DNA and associated proteins in the nucleus of eukaryotic cells, and the functional units of inheritance. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Cell division
The process by which a single parent cell divides into two or more daughter cells. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Electrolytic cell
An electrolytic cell is a system that breaks down chemical compounds by electrolysis. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Parts of the Plant: Leaves
Why are leaves commonly flat, spongy and strikingly green? Discover the different parts of a leaf and their function. Biology - Plants - Learning Points. A leaf is made of many layers sandwiched between tough outer layers. Gases enter...
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Neurons as Cells
Everything our brain does, from controlling movement to conscious thought, is achieved by the firing of electrical signals called neurons. Biology - Being Human - Learning Points. Everything our brain does is achieved by electrical...
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The Very First Cell
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....
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Pandemic Viruses
Pandemic viruses can spread around the world. Viruses invade our bodies destroying cells and infecting others, but how do they do it? Biology - Cells And DNA - Learning Points. Viruses are deadly, contagious and can spread easily around...
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Plant Transport
How does a tall tree draw water from its roots to its leaves? And how does food made in leaves reach the rest of a plant? Discover how plants transport resources via the xylem and phloem. Biology - Plants - Learning Points. Transpiration...
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What Plants Need to Grow
Plants produce oxygen and provide our food, but what do they need to live? Learn why nitrates, phosphates, potassium and magnesium are vital for plant health. Biology - Plants - Learning Points. Understanding how plants grow ensures we...
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How Does DNA Make Protein?
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...
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Genetic Modification
Genetic Modification allows scientists to manipulate the genetic information of cells, even swapping characteristics between different species. But it is a process which has caused a lot of controversy. Biology - Cells And DNA - Learning...
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What is Cancer?
Cancers claim more lives every year than any other disease, and come in many forms such as lung cancer, bowl cancer and breast cancer. Why are cancers so deadly and how can we treat them? Biology - Cells And DNA - Learning Points. There...