15 results for “protein”
Chemistry
The Chemistry of Life
Proteins: the workers Proteins are chains of building blocks called amino acids. There are twenty kinds
Article · 3 min read
Life & Biology
DNA and Genes
protein, and proteins are what cells are made of and what they use to do everything
Article · 4 min read
Life & Biology
The Origin of Life
proteins to do the work, but DNA cannot copy itself without proteins, and proteins cannot be made
Article · 4 min read
The Human Body
The Immune System
proteins whose tips are shaped to lock onto one particular target, a specific protein on the surface
Article · 4 min read
The Human Body
Digestion
proteins and fats, far too large to pass into the blood. Digestion is the process of taking
Article · 4 min read
The Human Body
Muscles
protein filament, thick and thin, interleaved like the fingers of two hands. When a nerve signal
Article · 4 min read
The Human Body
The Heart and Blood
proteins, hormones and waste. The rest is cells. Red cells, about 25 trillion of them, are packed
Article · 4 min read
Life & Biology
What Is Life? The Cell
proteins, and proteins do almost everything: they are the enzymes that speed up chemical reactions, the fibres
Article · 4 min read
Plants & Fungi
Photosynthesis: How Plants Eat Light
proteins like a hot potato, with each handoff used to do work: pumping ions across a membrane
Article · 3 min read
Life & Biology
Bacteria and Viruses
protein molecule in your body contains nitrogen that was fixed by a microbe. Photosynthetic bacteria in the ocean
Article · 4 min read
Plants & Fungi
Carnivorous Plants
proteins and DNA, are nearly absent. Sunlight is plentiful, so the plants can make sugar, but they
Article · 4 min read
The Human Body
Skin, Hair and Nails
protein called keratin, flatten and die. The surface you can touch is a protective coat of dead
Article · 3 min read
The Human Body
The Skeleton and Bones
protein, mostly collagen fibres, which give it flexibility and stop it shattering. The rest is mineral
Article · 5 min read
Plants & Fungi
Seeds
protein, enough to feed the seedling until it can make its own. The whole package is sealed
Article · 4 min read
The Human Body
The Senses
protein; bitter warns of poisons, which is why children, who have more taste buds, dislike bitter
Article · 4 min read
