Understanding Differentiation and Stem Cells

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Questions and Answers

Which of the following is NOT a factor that affects the rate of diffusion?

  • Surface area of the membrane
  • Concentration gradient
  • Temperature
  • Electrical charge of the particles (correct)

In the process of gas exchange in the lungs, where does oxygen move from?

  • Alveoli to the plasma
  • Plasma to the alveoli
  • Alveoli to the red blood cells (correct)
  • Red blood cells to the alveoli

What is the primary function of red blood cells in the process of respiration?

  • To transport carbon dioxide from the cells to the lungs
  • To produce energy through the process of cellular respiration
  • To transport oxygen from the lungs to cells across the body (correct)
  • To facilitate the exchange of gases between the alveoli and the blood

Which of the following processes is NOT mentioned in the given text?

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

In the context of the given text, what is the primary function of the kidneys?

<p>To remove waste products from the blood (D)</p> Signup and view all the answers

Which of the following statements about diffusion is NOT true, according to the given text?

<p>The rate of diffusion is unaffected by the size of the particles (B)</p> Signup and view all the answers

In the context of the given text, what is the primary function of the liver?

<p>To produce waste products like urea (A)</p> Signup and view all the answers

What is the term used in the text to describe the movement of gases between the lungs and the blood?

<p>Gas exchange (C)</p> Signup and view all the answers

Which of the following statements is true about the relationship between temperature and the rate of diffusion?

<p>Higher temperatures lead to a faster rate of diffusion (B)</p> Signup and view all the answers

Which of the following structures in the lungs is mentioned in the text as the site where gas exchange occurs?

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

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