Cell Biology Quiz - Eukaryotic vs Prokaryotic Cells
50 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What structure is absent in prokaryotic cells?

  • Cytoplasm
  • Organelles
  • Cell membrane
  • Nucleus (correct)

    • Where is DNA located in eukaryotic cells?

  • In the cytoplasm
  • In the cell membrane
  • In ribosomes
  • In the nucleus (correct)

    • Which of the following is a characteristic of eukaryotic cells?

  • Absence of cell membrane
  • Presence of organelles (correct)
  • DNA located in the cytoplasm
  • Lack of cytoplasm

    • What is the surface area to volume ratio for a cube-shaped cell measuring 1 nm on each side?

    <p>6:1</p> Signup and view all the answers

    What significant discovery is attributed to Robert Brown?

    <p>Discovery of the nucleus</p> Signup and view all the answers

    What is the primary function of mitochondria in an animal cell?

    <p>Produces and releases energy</p> Signup and view all the answers

    Which organelle is responsible for synthesizing proteins in an animal cell?

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

    What role does the cell membrane play in an animal cell?

    <p>Controls what enters and leaves the cell</p> Signup and view all the answers

    What is the primary role of the smooth endoplasmic reticulum (ER) in an animal cell?

    <p>Synthesizes steroids and breaks down toxins</p> Signup and view all the answers

    Which organelle is primarily involved in controlling what enters and leaves the nucleus?

    <p>Nuclear pores</p> Signup and view all the answers

    What is the primary function of cilia in cells?

    <p>To help move the cell</p> Signup and view all the answers

    Which organelle is responsible for photosynthesis in plant cells?

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

    What components make up the cytoskeleton?

    <p>Microtubules and microfilaments</p> Signup and view all the answers

    Which of the following statements is true regarding plant cells?

    <p>They have a box-shaped structure</p> Signup and view all the answers

    What is the purpose of microfilaments in the cytoskeleton?

    <p>To maintain the shape of the cell</p> Signup and view all the answers

    What is the first step in the process of Binary Fission?

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

    What is produced at the end of the Binary Fission process?

    <p>Two identical cells</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Asexual Reproduction?

    <p>Involves meiosis</p> Signup and view all the answers

    In the Binary Fission diagram, what do the symbols represent?

    <p>An unicellular organism dividing</p> Signup and view all the answers

    Which type of reproduction involves Mitosis and Meiosis?

    <p>Sexual Reproduction</p> Signup and view all the answers

    Who coined the term 'cells'?

    <p>Robert Hooke</p> Signup and view all the answers

    What did Theodor Schwann contribute to cell theory?

    <p>All animals are made of cells.</p> Signup and view all the answers

    Which of the following is NOT a postulate of cell theory?

    <p>Cells can only come from non-living matter.</p> Signup and view all the answers

    Who was the first person to observe living cells through a microscope?

    <p>Anton van Leeuwenhoek</p> Signup and view all the answers

    What happens to molecules once equilibrium is obtained?

    <p>They move to maintain equilibrium.</p> Signup and view all the answers

    Which scientist is associated with the idea that all plants are made of cells?

    <p>Mathias Schleiden</p> Signup and view all the answers

    Which term describes a solution with a greater concentration of solute than another?

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

    What is the definition of concentration?

    <p>The amount of solute in a given amount of solvent.</p> Signup and view all the answers

    Which process involves the movement of materials from high concentration to low concentration without using energy?

    <p>Passive transport</p> Signup and view all the answers

    What is the effect of cold temperatures on most solutions?

    <p>They contract.</p> Signup and view all the answers

    What is osmosis specifically the diffusion of?

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

    What unit is used to measure concentration?

    <p>Grams per milliliters</p> Signup and view all the answers

    Turgor pressure occurs as a result of what process?

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

    What happens to molecules during diffusion?

    <p>They move from high concentration to low concentration.</p> Signup and view all the answers

    What is equilibrium in the context of molecule distribution?

    <p>When molecules are evenly distributed.</p> Signup and view all the answers

    What occurs when a cell is placed in a hypotonic solution?

    <p>The cell expands</p> Signup and view all the answers

    In which direction does water typically move in relation to cell concentrations?

    <p>From hypotonic to hypertonic</p> Signup and view all the answers

    What describes the process of a cell shrinking in a hypertonic solution?

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

    What term describes the breakdown of a cell due to osmotic pressure?

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

    What happens to the concentration of solutions when water moves from a hypotonic side to a hypertonic side?

    <p>The concentration on the hypertonic side increases</p> Signup and view all the answers

    What type of transport requires energy to move materials?

    <p>Active transport</p> Signup and view all the answers

    Which method is NOT a form of passive transport?

    <p>Sodium-Potassium Pump</p> Signup and view all the answers

    What is the primary purpose of endocytosis?

    <p>To transport materials into the cell</p> Signup and view all the answers

    Which type of endocytosis involves the transportation of large particles?

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

    Which process moves sodium ions ($Na^+$) out of the cell?

    <p>Active transport</p> Signup and view all the answers

    What role do carbohydrate chains play in the diffusion process?

    <p>Act as chemical identifiers</p> Signup and view all the answers

    Which of the following factors would most likely increase the rate of diffusion?

    <p>Raising the temperature</p> Signup and view all the answers

    How do protein channels facilitate diffusion?

    <p>Change shape to allow larger molecules to pass</p> Signup and view all the answers

    What is the relationship between the size of molecules and the rate of diffusion?

    <p>Larger molecules diffuse slower than smaller ones</p> Signup and view all the answers

    Which statement is true regarding pH and the rate of diffusion?

    <p>pH is a factor influencing diffusion, but details are limited</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser