Active Transport
Biology: Edexcel IGCSE, topic 2.1.20
Active Transport in Humans and Plants
Active transport is important in many contexts.
Sugar absorption in human gut
- Active transport allows sugar molecules, which are needed for cell respiration, to be absorbed into the blood from the gut, even when the sugar concentration of the blood is higher.
Mineral absorption in plants
- Active transport in the root hairs of plants allows plants to absorb mineral ions, which are necessary for healthy growth, even though the concentration of minerals is usually lower in the soil than in the root hair.
Test yourself on Active Transport
Which of the following processes does NOT occur via active transport?