Green plants and algae use light energy to make glucose and oxygen from carbon dioxide and water. Temperature, carbon dioxide concentration and light intensity can affect the rate of photosynthesis.

Many cells in multicellular organisms are specialised. They have specific roles in the organism of which they are part. Their structure is adapted to their function. They are often grouped together ...

Peptides, short chains of amino acids, help with blood pressure and wound healing. Some peptide supplements can reduce inflammation and boost muscle growth. Peptides in foods like eggs, milk, and soy ...