Cell Structure and Function Biology Lecture 3 Quiz
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Questions and Answers

Which type of cell lacks a membrane-bound nucleus and organelles?

  • Animal cells
  • Prokaryotic cells (correct)
  • Eukaryotic cells
  • Plant cells

    • What is the basic unit of life?

  • Organs
  • Molecules
  • Atoms
  • Cells (correct)

    • According to cell theory, where do cells come from?

  • Non-living matter
  • Preexisting cells (correct)
  • Spontaneous generation
  • From the environment

    • Which domain contains organisms with eukaryotic cells?

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

    What is the function of ribosomes in a cell?

    <p>Protein synthesis</p> Signup and view all the answers

    Which type of cells have a membrane-bound nucleus and membranous organelles?

    <p>Eukaryotic cells</p> Signup and view all the answers

    What is the term for the genetic material in a cell that carries the instructions for cell function?

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

    What is the main function of the nucleus in a eukaryotic cell?

    <p>Genetic control</p> Signup and view all the answers

    What is the term for the basic units of structure and function in organisms?

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

    What is the term for the process of cells self-reproducing?

    <p>Cell division</p> Signup and view all the answers

    What are the two types of cells existing in nature?

    <p>Eukaryotic and Prokaryotic cells</p> Signup and view all the answers

    What is the term for cells that lack a membrane-bound nucleus and organelles?

    <p>Prokaryotic cells</p> Signup and view all the answers

    What is the main function of smooth ER?

    <p>Detoxification of drugs and poisons</p> Signup and view all the answers

    Which organelle is responsible for receiving, modifying, storing, and shipping products of the ER?

    <p>Golgi Apparatus</p> Signup and view all the answers

    Where do the secretory vesicles go after departing from the Golgi apparatus?

    <p>Plasma membrane</p> Signup and view all the answers

    What is the main function of lysosomes?

    <p>Digesting macromolecules</p> Signup and view all the answers

    In what process do lysosomes use their hydrolytic enzymes to recycle the cell's own organic material?

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

    What type of membrane-bound vesicles contain specialized enzymes to perform specific metabolic functions?

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

    What toxic molecule is broken down by the enzyme catalase in peroxisomes?

    <p>$H_2O_2$</p> Signup and view all the answers

    What do plant vacuoles contain besides water?

    <p>$C_6H_{12}O_6$</p> Signup and view all the answers

    What is the main function of the Golgi apparatus?

    <p>Macromolecule modification</p> Signup and view all the answers

    What do transport vesicles move from the ER to the Golgi apparatus?

    <p>Protein-filled vesicles</p> Signup and view all the answers

    Which organelle continuously maintains a low pH and contains powerful hydrolytic enzymes?

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

    What is the primary role of microbodies in eukaryotic cells?

    <p>Performing specific metabolic functions</p> Signup and view all the answers

    Which theory proposes that mitochondria and chloroplasts were independent prokaryotes that took up residence in a eukaryotic cell?

    <p>Endosymbiotic theory</p> Signup and view all the answers

    What is the function of the nuclear envelope?

    <p>To enclose the nucleus and separate its contents from the cytoplasm</p> Signup and view all the answers

    What is the primary function of ribosomes in the cell?

    <p>Protein synthesis</p> Signup and view all the answers

    What is the role of a nucleolus in a eukaryotic cell?

    <p>Synthesizing ribosomal RNA (rRNA) from instructions in the DNA</p> Signup and view all the answers

    What is the structure that contains thread-like structures known as chromatin in a eukaryotic cell?

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

    What is a characteristic feature of chromosomes in a eukaryotic cell?

    <p>They carry genetic information</p> Signup and view all the answers

    What is the function of the endomembrane system in a eukaryotic cell?

    <p>Compartmentalize the cell for specific enzymatic reactions</p> Signup and view all the answers

    Where does protein synthesis occur in a eukaryotic cell?

    <p>Ribosomes in the cytoplasm</p> Signup and view all the answers

    What are the two distinct regions of endoplasmic reticulum (ER) in a eukaryotic cell?

    <p>Rough ER and Smooth ER</p> Signup and view all the answers

    What is contained within a vesicle in a eukaryotic cell?

    <p>Molecules being transported within the endomembrane system</p> Signup and view all the answers

    What is the primary function of free ribosomes in a eukaryotic cell?

    <p>Make proteins that function within the cytoplasm</p> Signup and view all the answers

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