Endosymbiotic Theory Overview

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Questions and Answers

Which organelle is responsible for synthesizing and secreting proteins in the liver and hormones in the glands?

  • Golgi apparatus
  • Rough endoplasmic reticulum (correct)
  • Lysosome
  • Mitochondria

What is the main function associated with smooth endoplasmic reticulum?

  • ATP synthesis
  • Carbohydrate digestion
  • Phospholipid production (correct)
  • Protein synthesis

Which type of endoplasmic reticulum has ribosomes on its surface?

  • Lysosomal endoplasmic reticulum
  • Golgi endoplasmic reticulum
  • Smooth endoplasmic reticulum
  • Rough endoplasmic reticulum (correct)

What is the shape of the smooth endoplasmic reticulum?

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

Aside from protein synthesis, what is another important function of the rough endoplasmic reticulum?

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

Which organelle is responsible for transporting the products of rough endoplasmic reticulum to other cellular organelles like Golgi apparatus?

<p>Smooth endoplasmic reticulum (C)</p> Signup and view all the answers

What is the primary function of the smooth endoplasmic reticulum?

<p>Synthesizing essential lipids and steroid hormones (D)</p> Signup and view all the answers

How do prokaryotic cells differ from eukaryotic cells in terms of DNA organization?

<p>Prokaryotes have DNA enclosed in a nucleus, while eukaryotes have DNA in a central region called nucleoid (A)</p> Signup and view all the answers

Which statement accurately describes prokaryotic cells?

<p>They lack a true nucleus and membrane-bound organelles (A)</p> Signup and view all the answers

What do mitochondria and chloroplasts have in common based on the endosymbiont theory?

<p>They were once free-living cells (D)</p> Signup and view all the answers

Which organelle was NOT mentioned as an example of an endosymbiont in the text?

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

Why are smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER) important for cell function?

<p>SER synthesizes lipids, while RER synthesizes proteins (A)</p> Signup and view all the answers

What is the main idea behind the Endosymbiotic Theory?

<p>Mitochondria and chloroplasts were once aerobic bacteria ingested by a prokaryotic cell. (B)</p> Signup and view all the answers

What is the role of organelles in cells?

<p>To carry out life functions within the cell. (D)</p> Signup and view all the answers

How do cells become specialized for specific roles?

<p>Through a process called specialization. (B)</p> Signup and view all the answers

Which of the following is NOT one of the main types of tissues found in the human body?

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

What defines a group of tissues working together in the body?

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

From which prokaryotic organisms did mitochondria and chloroplasts in eukaryotic cells evolve?

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

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