Chapter 25, Problem 1DYKB

Summary Introduction

Introduction:

The concentration and percentage of body fluids and water varies according to the age. The percentage of body fluids decreases with the increase in the age of the person.

Answer to Problem 1DYKB

Correct answer:

The percentage of water is highest in an individual (lean) male athlete with age of $\text{35years}$. Therefore, option d. is correct.

Explanation of Solution

Reasons for the correct statement:

Option d. is given as “a lean $\text{35years}$-year old athlete”.  The concentration and volume of water decreases with age therefore the percentage of water will be highest in an individual of $\text{35years}$ of age.

Hence, option d. is correct.

Reasons for incorrect statements:

Option a. is given as “a frail $76$- year-old woman”. The percentage of body weight will be less in a $76$ year old person. Hence, option a. is incorrect.

Option b. is given as “a chunky $52$-year old male athlete”. The percentage of water will be less in an $52$ old male athlete. Hence, option b. is incorrect.

Option c. is given as “a healthy $88$-year old man”. The percentage of water will be less in a person of age $88$ year of age. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.

Conclusion

Volume and concentration of fluid and water decreases with increasing age, as with the increasing age the amount of skeletal tissue and adipose tissue deposited in the body degrades.