Biology 112 Exam 1 Review - Blood
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Questions and Answers

What is the primary function of blood related to protection?

  • Balancing fluid levels
  • Transporting nutrients
  • Regulating body temperature
  • Defending against pathogens (correct)
  • What percentage of blood is made up of plasma?

  • 45%
  • 55% (correct)
  • 60%
  • 50%
  • Which of the following is NOT a function of blood?

  • Distribution of hormones
  • Regulation of pH
  • Exchange of oxygen and carbon dioxide
  • Storage of energy (correct)
  • How does blood assist in regulating body temperature?

    <p>By transporting heat from the core to the surface</p> Signup and view all the answers

    Which component makes up the majority of plasma?

    <p>Water</p> Signup and view all the answers

    Which of the following describes a key regulatory function of blood?

    <p>Maintain acid-base balance in the body.</p> Signup and view all the answers

    In terms of blood components, which statement accurately reflects the primary characteristics of plasma?

    <p>Plasma contains water, proteins, and other solutes.</p> Signup and view all the answers

    Which characteristic of blood contributes to its ability to protect the body?

    <p>The presence of plasma proteins.</p> Signup and view all the answers

    How does blood contribute to the distribution function in the body?

    <p>By transporting nutrients to tissues.</p> Signup and view all the answers

    What is the significance of blood volume in the circulatory system?

    <p>It impacts blood pressure and flow efficiency.</p> Signup and view all the answers

    Study Notes

    Functions of Blood

    • Distribution of nutrients, oxygen, hormones, and waste products throughout the body
    • Regulation of body temperature, pH levels, and fluid balance
    • Protection against blood loss through clotting and infection via immune response

    Blood Volume and Composition

    • Total blood volume varies by individual; generally around 5-6 liters for an adult male and 4-5 liters for an adult female
    • Normal blood pH ranges from 7.35 to 7.45, essential for enzymatic functions
    • Average blood temperature is approximately 38°C (100.4°F), slightly warmer than normal body temperature

    Blood Components

    • Plasma constitutes about 55% of total blood volume
    • Major constituents of plasma include:
      • Water (about 90% of plasma volume)
      • Plasma proteins such as albumin, globulins, and fibrinogen, which play roles in osmotic balance, immune function, and blood clotting
      • Various dissolved substances, including electrolytes, nutrients, gases, and wastes

    Functions of Blood

    • Distribution of nutrients, oxygen, hormones, and waste products throughout the body
    • Regulation of body temperature, pH levels, and fluid balance
    • Protection against blood loss through clotting and infection via immune response

    Blood Volume and Composition

    • Total blood volume varies by individual; generally around 5-6 liters for an adult male and 4-5 liters for an adult female
    • Normal blood pH ranges from 7.35 to 7.45, essential for enzymatic functions
    • Average blood temperature is approximately 38°C (100.4°F), slightly warmer than normal body temperature

    Blood Components

    • Plasma constitutes about 55% of total blood volume
    • Major constituents of plasma include:
      • Water (about 90% of plasma volume)
      • Plasma proteins such as albumin, globulins, and fibrinogen, which play roles in osmotic balance, immune function, and blood clotting
      • Various dissolved substances, including electrolytes, nutrients, gases, and wastes

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    Description

    Prepare for your Biology 112 Exam 1 with this review focused on Chapter 17 chapter 20 and chapter 21 covering the functions of blood, its components, and key physiological aspects. Understand blood volume, pH, and temperature regulation, along with the roles of plasma and proteins found within, as well as the lymphatic sys system and the immune system This quiz is essential for mastering the concepts that will be tested.

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