Mitochondria in Eukaryotic Cells

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Questions and Answers

What is the characteristic of mitochondria that suggests they originated from bacteria?

  • Having two distinct membranes (correct)
  • Having a single membrane
  • Having a fixed shape
  • Being found in the nucleus

What is the function of the enzymes in the inner mitochondrial membrane?

  • Breaking down food
  • Carrying out ATP production (correct)
  • Storing genetic information
  • Regulating cell growth

Where is the mitochondrial DNA located?

  • In the cytoplasm
  • In the outer membrane
  • In the matrix (correct)
  • In the intermembrane space

What is the term for the highly folded inner membrane of mitochondria?

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

What is the primary function of mitochondria in the cell?

<p>Producing energy currency (ATP) (D)</p> Signup and view all the answers

What is the site for material exchange between the mitochondria and the cytoplasm?

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

What is the role of mitochondria in apoptosis?

<p>To release cytochrome C and initiate a chain of reactions that ends with cell death (D)</p> Signup and view all the answers

How do enzymes lower the activation energy of a reaction?

<p>By binding with the substrate and forming an enzyme-substrate complex (D)</p> Signup and view all the answers

What is the result of meiosis in sexually reproducing organisms?

<p>Gametes with half the genetic information of the parents (A)</p> Signup and view all the answers

What is the difference between mitosis and meiosis?

<p>Mitosis produces genetically identical cells while meiosis produces genetically diverse cells (C)</p> Signup and view all the answers

What is the function of an antheridium in plants?

<p>To store and produce sperm cells (B)</p> Signup and view all the answers

What is a characteristic of Bryophytes?

<p>They are non-vascular plants without xylem and phloem systems (C)</p> Signup and view all the answers

What is the term for the process by which ferns reproduce?

<p>Alternation of generations (B)</p> Signup and view all the answers

What is the purpose of water in fern reproduction?

<p>To allow sperm cells to swim to the egg (C)</p> Signup and view all the answers

What is the result of fertilization in ferns?

<p>Development of a zygote with a diploid number of chromosomes (B)</p> Signup and view all the answers

What is the number of chromosomes in the gametes produced during meiosis?

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

What is the purpose of crossing over during prophase I of meiosis?

<p>To increase genetic variation (A)</p> Signup and view all the answers

What is the term for the process by which cells multiply?

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

What is the stage of the cell cycle where DNA synthesis and duplication occur?

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

What is the result of endoreplication?

<p>Retention of four copies of each chromosome in the non-dividing cell (D)</p> Signup and view all the answers

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