Question

What is the importance of respiration?

O It transports oxygen from the air to the cells.
O It breaks down food that is ingested to its building blocks.
O It produces energy that is needed for normal functioning of the cells.
It builds glucose molecules that are needed for producing energy in cells.

Answer 1

Respiration is vital for transporting oxygen, breaking down food, and producing energy in cells.

Step-by-step explanation:

Respiration is a vital process in living organisms as it serves several important functions. The most significant is the transport of oxygen from the air to the cells, which is achieved through breathing. Oxygen is essential for cellular respiration, a process that occurs in the mitochondria and produces energy in the form of ATP.

Additionally, respiration also involves breaking down food molecules, such as glucose, into their building blocks through a process called digestion. These building blocks are then utilized by the cells for various metabolic activities, including the synthesis of proteins and the production of energy. Lastly, respiration plays a role in the formation of glucose molecules through a process known as gluconeogenesis, where other precursor molecules are converted into glucose when needed.

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