Mention three substances which are transported in living things

Answer 1

Three substances that are commonly transported in living organisms are:

1. Oxygen (O2) - In animals, oxygen is transported by hemoglobin in red blood cells, while in plants, it may be transported through the air spaces within leaves during the process of respiration.

2. Carbon Dioxide (CO2) - This waste product of cellular respiration is transported in the bloodstream of animals, primarily in the form of bicarbonate ions (HCO3-), and in plants, it is absorbed for photosynthesis.

3. Nutrients - Various nutrients, including glucose, amino acids, vitamins, and minerals, are transported in the bloodstream of animals and through xylem and phloem in plants to nourish cells and support growth.