Respiratory system in plants

• In plants, food that is manufactured in the form of starch needs to be broken down to release energy.
• Respiration is a vital function in plants. It is represented as:

Starch (Sugar) + Oxygen → Energy + Carbon dioxide + Water

Respiratory system in plants

• Plants use carbon dioxide gas in the process of photosynthesis, and release oxygen gas, a waste product of photosynthesis.
• Respiration is the opposite of that. Plants also respire as humans do; taking in oxygen and producing carbon dioxide.

• Plants take in carbon dioxide through holes on the undersides of their leaves known as stomata (sing: stoma) or pores. However, most plants require little air.

How do plants/animals live in water:

• Aquatic plants have special adaptations to take in dissolved carbon dioxide in water absorbed directly from the atmosphere.
• Aquatic animals take in dissolved oxygen released by aquatic plants during photosynthesis.
• Aquatic animals breathe through their skins, while many have gills.
• Aquatic plants directly exchange gases with the water surrounding their leaves, stems, and roots.