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Importance of Oxygen and Water in Human Body

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Importance of Oxygen and Water in Human Body

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Questions and Answers

Why is oxygen necessary for human cells?

To facilitate oxidative reactions that release energy from foods (correct)

To maintain normal body temperature

To generate body heat

To provide the watery environment for chemical reactions

What percentage of the air we breathe is oxygen?

40%

30%

20% (correct)

10%

How does the body lose water?

By evaporation from the lungs and skin (correct)

Through ingested foods

Through body excretions

By metabolic reactions

Why is maintaining normal body temperature crucial for metabolic reactions?

To prevent death Signup and view all the answers

What primarily generates body heat in the human body?

The muscular system Signup and view all the answers

What is the role of atmospheric pressure in breathing?

It is essential for gas exchange in the lungs Signup and view all the answers

Which part of the body includes the head, neck, and trunk?

Axial part Signup and view all the answers

Which type of plane divides the body into anterior and posterior parts?

Frontal plane Signup and view all the answers

What is a section produced by cutting along a sagittal plane called?

Sagittal section Signup and view all the answers

What is a frontal plane also known as?

Coronal plane Signup and view all the answers

Which type of plane divides the body into superior and inferior parts?

Transverse plane Signup and view all the answers

What does a median plane divide the body into?

Right and left parts Signup and view all the answers