Functions and Composition of Blood
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Questions and Answers

Which function of blood is primarily responsible for maintaining acid-base balance?

  • Transport of nutrients
  • Buffering (correct)
  • Immunologic function
  • Coagulation

What percentage of whole blood is composed of plasma?

  • 45%
  • 50%
  • 60%
  • 55% (correct)

Which component of blood plays a crucial role in transporting hormones?

  • Red blood cells
  • White blood cells
  • Platelets
  • Plasma (correct)

In relation to systemic defenses, which blood components are vital for protecting against infections?

<p>Leukocytes and antibodies (A)</p> Signup and view all the answers

Which of the following is NOT a function of blood?

<p>Storage of genetic material (A)</p> Signup and view all the answers

What is the primary role of the buffy coat in the blood?

<p>Housing leukocytes and platelets (C)</p> Signup and view all the answers

How does blood assist in regulating core temperature?

<p>By heating and cooling the body (C)</p> Signup and view all the answers

Which process involves the removal of metabolic products from the body?

<p>Respiration (B)</p> Signup and view all the answers

What are the coagulation factors primarily responsible for?

<p>Protection against traumatic bleeding (D)</p> Signup and view all the answers

Study Notes

Basic Functions of Blood

  • Transports oxygen and carbon dioxide between the lungs and other tissues.
  • Delivers absorbed nutrients to tissues.
  • Removes metabolic products to the kidney, lung, skin, and intestines for excretion.
  • Regulates acid-base balance.
  • Maintains osmotic balance with the oncotic pressure of plasma proteins.
  • Regulates body temperature via blood heating and cooling.
  • Defends against infection through the action of leukocytes and antibodies.
  • Protects against traumatic bleeding through the use of coagulation factors.
  • Transports hormones and other metabolites.

Composition of Whole Blood

  • Plasma comprises 55% of whole blood.
  • The buffy coat contains leukocytes and platelets, representing less than 1% of whole blood.
  • Remaining 45% of whole blood is red blood cells or erythrocytes.

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Description

Explore the essential functions and composition of blood in this quiz. Learn how blood transports gases, nutrients, and hormones while also playing a crucial role in immune defense and temperature regulation. Test your knowledge on the components that make up whole blood, including plasma and red blood cells.

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