8th Grade Biology Review: Digestive System, Mitosis, and Meiosis

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Questions and Answers

Where does most of the chemical digestion of food take place?

  • Small intestine (correct)
  • Mouth
  • Esophagus
  • Stomach

What is the process called when a cell makes an exact copy of its DNA?

  • Mitosis
  • Replication (correct)
  • Meiosis
  • Gene expression

What is the purpose of the villi in the small intestine?

  • To produce mucus
  • To mix food with digestive enzymes
  • To store bile
  • To absorb nutrients into the bloodstream (correct)

How many daughter cells are produced during mitosis?

<p>2 (D)</p> Signup and view all the answers

What is the purpose of the digestive enzyme amylase?

<p>To break down carbohydrates (D)</p> Signup and view all the answers

What is the main difference between mitosis and meiosis?

<p>Mitosis produces diploid cells, while meiosis produces haploid cells. (B)</p> Signup and view all the answers

During which stage of mitosis do the sister chromatids separate?

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

What is the result of meiosis in humans?

<p>Four haploid daughter cells (C)</p> Signup and view all the answers

What is the function of the spindle fibers in mitosis?

<p>To separate sister chromatids (A)</p> Signup and view all the answers

Which process is responsible for genetic variation in offspring?

<p>Meiosis (D)</p> Signup and view all the answers

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