Cell Differentiation and Specialization Quiz
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Questions and Answers

What is the purpose of a feedback system in the body?

  • To maintain the volume and composition of body fluid
  • To initiate chemical reactions in the body
  • To regulate the concentration of glucose in the blood
  • To monitor and evaluate the status of the body's condition (correct)
  • Which component of the feedback system is responsible for detecting changes in the body's environment?

  • Receptor (correct)
  • Control Centre
  • Effector
  • Stimulus
  • What is the primary function of negative feedback systems in the body?

  • To amplify the effects of a stimulus
  • To initiate chemical reactions in the body
  • To increase glucose concentration in the blood
  • To maintain stability and prevent excessive change (correct)
  • In which part of the body do the highest proportions of water compose 80–85 percent of their masses?

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

    Which of the following is NOT a basic cell function related to obtaining nutrients and oxygen?

    <p>Synthesizing proteins needed for cell structure and growth</p> Signup and view all the answers

    What is the primary function of performing chemical reactions that use nutrients and O2?

    <p>To provide energy for the cells</p> Signup and view all the answers

    Why is obtaining food (nutrients) and oxygen (O2) crucial for all cells?

    <p>To perform chemical reactions that provide energy for the cells</p> Signup and view all the answers

    Which of the following is a key part of a cell's response to changes in the surrounding environment?

    <p>Being sensitive and responsive to changes in the surrounding environment</p> Signup and view all the answers

    Which atoms make up 96% of the total body chemistry?

    <p>Oxygen, carbon, hydrogen, and nitrogen</p> Signup and view all the answers

    At which level of organization in the human body do cells become the basic units of life?

    <p>The cellular level</p> Signup and view all the answers

    Which atoms and molecules are the inanimate raw ingredients from which all living things arise?

    <p>Oxygen, carbon, hydrogen, nitrogen, proteins, carbohydrates, fats, and nucleic acids</p> Signup and view all the answers

    What is the fundamental unit of both structure and function in a living being?

    <p>The cell</p> Signup and view all the answers

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