Chapter 24, Problem 1TQ

Summary Introduction

Blood tissue is an important carrier in the body. Blood contains white blood cells (WBC), red blood corpuscles (RBC) and platelets. Blood is pumped by heart from one part to another. Blood is involved in carrying oxygen through the hemoglobin pigment present in the RBCs.

Answer to Problem 1TQ

Blood plasma transports waste products, water and solutes.

Therefore, option (d) is correct.

Explanation of Solution

Justify reasons for the correct statement:

Blood plasma is a fluid, which comprises of 92% water, anti-hemophilic factors, vital proteins and blood components along with some salts, sugars, vitamins, hormones and fats. Blood plasma contains dissolved ions, gases and certain important molecules, which altogether play a role in homeostasis.

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

Hence, option (d) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “waste products”.

Blood not only carry waste products as tissue wastes, but it also carries other vital nutrients and immunoglobulins. Hence, it is a wrong answer.

Option (b) is given as “water”.

Blood plasma constitutes 92% water. The rest of the things are comprised of nutrients, RBC and WBC cells etc. Hence, it is a wrong answer.

Option (c) is given as “solutes”.

Since blood plasma contains 92% water and solute is just 8%. Hence, it is a wrong answer.

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

Conclusion

Blood plasma is watery fluid which acts as a carrier to transport nutrients, waste products, ions and other components in the blood.