Chapter 12, Problem 1CA

Summary Introduction

Introduction: Blood is an essential component of life that has many important functions. It is a type of connective tissue where cells are suspended in a liquid extracellular matrix.

Answer to Problem 1CA

Correct answer: d. all of the above.

Explanation of Solution

Reason for the correct answer:

The important functions of blood include oxygen transport from the lungs and nutrients, from the digestive system. It maintains the homeostasis of the human body by maintaining the stability of interstitial fluid and heat distribution. It circulates the secreted hormone all over the body through blood. It also carries carbon dioxide and metabolic wastes from the body.

Option d. is given as “all of the above”.

Hence, the correct answer is option d.

Reasons for incorrect answers:

Option a. is given as “nutrient, hormone, and oxygen transport”.

The transport of nutrient, hormone, and oxygen is through blood is not only one of the major function but also helps to maintain fluid stability and heat distribution. Hence, option a is incorrect.

Option b. is given as “helping maintain the stability of interstitial fluid”.

Maintaining the interstitial fluid stability is one of the major functions of the blood. There is some other major function blood that includes transportation of nutrients, hormones, oxygen and heat distribution. Hence, option b is incorrect.

Option c. is given as “Heat distribution”.

Heat distribution is one of the major functions of the blood. There are some other major functions of blood that includes transportation of nutrients, hormones, oxygen and also maintain interstitial fluid stability. Hence, option c is incorrect.

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

Conclusion

Thus, the major function of the blood is to maintain interstitial fluid stability, nutrient, oxygen, and hormone transportation, and to maintain uniform heat distribution.