Question

A scientist is examining the role of an element found in fats and carbohydrates of living things. This element makes up 65% of human body mass. Which statement describes the element he is studying? He is studying oxygen, which can also be found in proteins. He is studying oxygen, which is the most abundant element in the atmosphere. He is studying nitrogen, which can also be found in proteins. He is studying nitrogen, which is the most abundant element in the atmosphere.

Answer 1

He is studying oxygen, which can also be found in proteins.

Answer 2

Answer:He is studying oxygen, which can also be found in proteins.

• Explanation Human body is made of many elements and oxygen is one of them.Its percentage in human being is 65% and this oxygen can easily bind with proteins .
• The best example that oxygen that can be found in proteins  is oxygenated hemoglobin .When oxygen combines with hemoglobin then the oxygen is transferred to the whole body for the gaseous exchange.
• This is the most important process as it provides oxygenated blood  from lungs to the whole body and deoxygenated blood from body to lungs.