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

What is the function of ribosomes in a cell?

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

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

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

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

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

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

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

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

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

What are the two types of cells existing in nature?

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

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

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

What is the main function of smooth ER?

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

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

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

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

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

What is the main function of lysosomes?

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

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

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

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

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

What do plant vacuoles contain besides water?

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

What is the main function of the Golgi apparatus?

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

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

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

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

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

What is the primary role of microbodies in eukaryotic cells?

<p>Performing specific metabolic functions (D)</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 (B)</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 (C)</p> Signup and view all the answers

What is the primary function of ribosomes in the cell?

<p>Protein synthesis (C)</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 (D)</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 (A)</p> Signup and view all the answers

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

<p>They carry genetic information (A)</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 (D)</p> Signup and view all the answers

Where does protein synthesis occur in a eukaryotic cell?

<p>Ribosomes in the cytoplasm (C)</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 (C)</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 (A)</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 (B)</p> Signup and view all the answers

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