Biology: Structure and Function of Cells
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Questions and Answers

What is the primary function of oxygen in cells?

  • To regulate cell growth
  • To maintain cell shape
  • To synthesize proteins
  • To produce energy for cell function (correct)

    • What is the main difference between intracellular and extracellular fluid?

  • Extracellular fluid has a higher concentration of ions
  • Intracellular fluid is more alkaline
  • Intracellular fluid has a different ionic composition (correct)
  • Extracellular fluid is static, while intracellular fluid is dynamic

    • What is the term for the fluid surrounding cells that provides nutrients and ions?

  • Plasma
  • Extracellular fluid (correct)
  • Interstitial fluid
  • Intracellular fluid

    • What is the primary function of the bones of the skull?

    <p>To protect the brain</p> Signup and view all the answers

    What is the percentage of body weight that is composed of body fluids?

    <p>60%</p> Signup and view all the answers

    What is the term for the process by which cells generate energy from nutrients?

    <p>Cellular respiration</p> Signup and view all the answers

    What is the main function of fibrinogen in blood plasma?

    <p>Convert to fibrin for blood coagulation</p> Signup and view all the answers

    What is the approximate percentage of red blood cells in whole blood?

    <p>45%</p> Signup and view all the answers

    What is the primary function of immunoglobulins in blood plasma?

    <p>Form antigen-antibody complexes</p> Signup and view all the answers

    What is the approximate number of white blood cells per milliliter of blood?

    <p>7x103/mL</p> Signup and view all the answers

    What is the main function of albumin in blood plasma?

    <p>Maintain blood osmotic pressure</p> Signup and view all the answers

    What is the primary function of red blood cells?

    <p>Transport oxygen from lungs to tissues</p> Signup and view all the answers

    What is the primary function of red blood cells in the human body?

    <p>To transport oxygen from the lungs to the tissues</p> Signup and view all the answers

    What is the approximate number of cells in the entire human body?

    <p>100 trillion</p> Signup and view all the answers

    What is the term for the scientific study of functions and mechanisms in a living system?

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

    What is the main purpose of physiology?

    <p>To explain the physical and chemical factors that control the origin, development, and progression of life</p> Signup and view all the answers

    What is the term for the basic living unit of the body?

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

    What is the term for the study of the functions and mechanisms of the human body?

    <p>Human Physiology</p> Signup and view all the answers

    What percentage of the body's water is intracellular fluid?

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

    What is the function of the interstitial fluid?

    <p>to transport nutrients and ions to cells</p> Signup and view all the answers

    Which organ has the highest water content?

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

    What is homeostasis?

    <p>the maintenance of a stable internal environment</p> Signup and view all the answers

    What is the second largest component of body fluids?

    <p>interstitial fluid</p> Signup and view all the answers

    What is the function of the Blood Circulatory System in relation to extracellular fluid?

    <p>to transport extracellular fluid throughout the body</p> Signup and view all the answers

    What percentage of body weight is composed of body fluids?

    <p>60%</p> Signup and view all the answers

    What is the primary function of extracellular fluid?

    <p>To provide nutrients and ions to cells</p> Signup and view all the answers

    What is the term for the fluid that surrounds cells?

    <p>Extracellular fluid</p> Signup and view all the answers

    What is the approximate proportion of body fluids that is intracellular fluid?

    <p>2/3</p> Signup and view all the answers

    What is the term for the 'internal environment' in which cells live?

    <p>Internal environment</p> Signup and view all the answers

    What is in continuous movement in the body?

    <p>Extracellular fluid</p> Signup and view all the answers

    What is the primary function of the blood in the human body?

    <p>to circulate continually around the body, allowing constant communication between tissues</p> Signup and view all the answers

    What is the approximate volume of blood in a male's body?

    <p>5-6 liters</p> Signup and view all the answers

    What is the primary function of the interstitial fluid?

    <p>to provide nutrients and ions to the cells</p> Signup and view all the answers

    What is the primary mechanism of homeostasis in the body?

    <p>all of the above</p> Signup and view all the answers

    What is the main function of the second stage of fluid movement?

    <p>movement of fluid between the blood capillaries and the intercellular spaces between the tissue cells</p> Signup and view all the answers

    What is the percentage of body weight that is composed of blood?

    <p>8% of total body weight</p> Signup and view all the answers

    The brain has a water content of 80 percent.

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

    Blood plasma is the largest part of the extracellular fluid.

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

    The two stages of extracellular fluid transport and mixing involve the lymphatic system and the blood circulatory system.

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

    Homeostasis refers to the constant change in the internal environment.

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

    The interstitial fluid surrounds blood cells.

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

    The lungs have the highest water content among all organs in the human body.

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

    Plasma is the liquid portion of the blood that contains potassium, magnesium, and phosphate ions.

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

    The extracellular fluid is in a static state and does not move.

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

    Homeostasis is the process by which cells generate energy from nutrients.

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

    Interstitial fluid is a type of intracellular fluid that surrounds cells.

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

    The blood volume of a male is approximately 4 liters.

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

    Blood is thinner than water.

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

    The primary function of the interstitial fluid is to regulate body temperature.

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

    Homeostasis is the process of generating energy from nutrients.

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

    The brain has a water content of 70 percent.

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

    The blood circulatory system is responsible for regulating the water content of cells.

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

    Blood plasma is the largest part of the intracellular fluid.

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

    The two stages of extracellular fluid transport and mixing involve the lymphatic system and the respiratory system.

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

    Homeostasis refers to the constant change in the external environment.

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

    Interstitial fluid surrounds the entire human body.

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

    The brain has a water content of 95 percent.

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

    Blood plasma is a clear liquid that contains 45% water.

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

    Fibrinogen is responsible for maintaining blood osmotic pressure.

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

    Homeostasis is the process by which cells generate energy from nutrients.

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

    Interstitial fluid is a component of intracellular fluid.

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

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