Biology: Bioenergetics & Cell Functions
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Questions and Answers

Which scientist was the first to observe cells using a microscope?

  • Theodore Schwann
  • Robert Hooke (correct)
  • Rudolf Virchow
  • Matthias Schleiden
  • Why is a cell called the fundamental structural and functional unit of life?

  • Because it can perform basic life functions independently (correct)
  • Because it is the largest unit in living organisms
  • Because it is transparent under a microscope
  • Because it is composed of non-living material
  • What secret is revealed through the study of cells according to the text?

  • Secrets of life itself (correct)
  • Secrets of the Earth's core
  • Secrets of outer space
  • Secrets of the plant kingdom
  • Who added the concept of the formation of cells to the cell theory?

    <p>Rudolf Virchow</p> Signup and view all the answers

    According to the cell theory, what is the smallest living unit structure and function of all organisms?

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

    Why did Robert Hooke name cells 'cells' after observing them under a microscope?

    <p>Because they resembled rooms in appearance</p> Signup and view all the answers

    Where are chloroplasts mainly found in plants?

    <p>In the leaves</p> Signup and view all the answers

    What is the role of thylakoids in a chloroplast?

    <p>Contain chlorophyll and conduct photosynthesis</p> Signup and view all the answers

    What is the function of stomata in photosynthesis?

    <p>Exchange gases like carbon dioxide and oxygen</p> Signup and view all the answers

    What is the primary source of energy for photosynthesis?

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

    Which part of a plant exports sugar to roots and non-photosynthetic parts?

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

    What does a stoma refer to in a plant cell?

    <p>A pore for gas exchange</p> Signup and view all the answers

    Which part of a plant has about half a million chloroplasts in just 1 mm²?

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

    Which type of cells lack distinct nuclei and have few organelles that are not membrane-bound?

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

    What is the main function of the Golgi Apparatus in a eukaryotic cell?

    <p>Sorting, packaging, and secreting cellular products</p> Signup and view all the answers

    What is the main function of lysosomes in a cell?

    <p>Digestion of excess or worn-out organelles</p> Signup and view all the answers

    What organelle is responsible for translocating materials within the cell and in and out of the nucleus?

    <p>Endoplasmic reticulum</p> Signup and view all the answers

    Which structure is known as the 'command center' of a eukaryotic cell?

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

    What component of a eukaryotic cell is composed of a fluid mosaic of proteins floating in a phospholipid bilayer?

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

    What surrounds the nucleus of a eukaryotic cell and has many nuclear pores for mRNA and proteins to pass through?

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

    What is the function of centrioles in a cell during cell division?

    <p>Formation of the spindle fiber during cell division</p> Signup and view all the answers

    What organelle provides mechanical support and maintains cell shape in plant cells?

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

    What is contained within the nucleolus of a eukaryotic cell?

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

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