Human Biology (MindTap Course List)

11th Edition
Cecie Starr + 1 other
ISBN: 9781305112100



Human Biology (MindTap Course List)

11th Edition
Cecie Starr + 1 other
ISBN: 9781305112100
Textbook Problem

Which of the following statements about blood plasma is/are accurate?

  1. a. Blood plasma is mostly water.
  2. b. Blood plasma transports only a few substances, including blood cells, several proteins, and some hormones.
  3. c. Blood plasma transports blood cells, as well as proteins and many other substances.
  4. d. Molecules of albumin make up the majority of blood plasma proteins.

Summary Introduction

Introduction: Hematologic system comprises of blood, blood vessels, and blood-forming organs. Blood is a fluid connective tissue that carries oxygen, glucose, and nutrients throughout the body. It mainly consists of four types of components, namely red blood cells (RBCs), white blood cells (WBCs), plasma, and platelets.


Reasons for the correct answers:

The blood plasma is the fluid or liquid potion of the blood. Plasma is 50%-60% of the total volume of blood and 91-92% of the plasma volume is water. It functions to serve as solvent for easy transportation of blood components throughout the body. It mainly functions in transportation of the components present within it as follows:

  • • It transports the blood cells that play a critical role in maintaining the normal blood pressure of the body.
  • • It helps to deliver nutrients to various cells of the body and in the same way it carries waste products from various organs for excretion.
  • • It acts as a transporting medium for the transportation of platelets and over a hundred other substances such as proteins, hormones, amino acids, lipoproteins, simple sugars, and dissolved gases throughout the body.
  • • It participates in immunity and clot formation.

Option a. is given as “Blood plasma is mostly water”.

Blood plasma is mostly water. Hence, the correct answer is option a.

Option c...

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