Biology Chapter: Cell Structures and Tissues
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Questions and Answers

Which organelle is primarily responsible for producing proteins?

  • Chloroplast
  • Rough ER (correct)
  • Mitochondria
  • Lysosome
  • What is the primary function of chloroplasts in plant cells?

  • Synthesis of lipids
  • Protein transport
  • Cellular respiration
  • Photosynthesis (correct)
  • Which organelle is described as containing hydrolytic enzymes for breaking down substances?

  • Golgi apparatus
  • Nucleus
  • Mitochondria
  • Lysosome (correct)
  • What role do centrioles play within a cell?

    <p>Facilitating cell division</p> Signup and view all the answers

    Which organelle functions as the 'powerhouse' of the cell?

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

    What is the primary role of chloroplasts in plant cells?

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

    Which of the following statements is true about specialised cells?

    <p>Most cells are specialised for a specific job.</p> Signup and view all the answers

    Which statement accurately describes tissues?

    <p>Tissues consist of similar cells that perform a unified function.</p> Signup and view all the answers

    Which component is unique to plant cells but not found in animal cells?

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

    How is the statement 'cells come from pre-existing cells' significant in biology?

    <p>It emphasizes the continuity of life through cell division.</p> Signup and view all the answers

    What is the primary function of connective tissue in the human body?

    <p>Connects and supports different parts of the body</p> Signup and view all the answers

    Where can epithelial tissue be primarily located in the human body?

    <p>In the skin and lining of digestive organs</p> Signup and view all the answers

    Which type of tissue is responsible for the contraction that allows movements?

    <p>Muscle tissue</p> Signup and view all the answers

    What role does nervous tissue play in the human body?

    <p>Carries electrical messages between the brain and other parts</p> Signup and view all the answers

    Which of the following tissues is NOT a primary type of tissue in the human body?

    <p>Cuboidal tissue</p> Signup and view all the answers

    Which organelle is primarily responsible for synthesizing proteins?

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

    What is a key function of the Golgi Apparatus?

    <p>Modification and packaging of proteins</p> Signup and view all the answers

    Which characteristic is unique to mitochondria compared to other organelles?

    <p>Double membrane structure</p> Signup and view all the answers

    What do lysosomes primarily contain?

    <p>Digestive enzymes</p> Signup and view all the answers

    Where are ribosomes produced within the cell?

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

    What is the primary role of the cell membrane?

    <p>To control movement of substances in and out of cells</p> Signup and view all the answers

    Which of the following statements about the nucleus is true?

    <p>It is the control center of the cell</p> Signup and view all the answers

    What distinguishes rough endoplasmic reticulum (Rough ER) from smooth endoplasmic reticulum (Smooth ER)?

    <p>Rough ER has ribosomes on its surface, while Smooth ER does not</p> Signup and view all the answers

    What form does DNA take when packaged within the nucleus?

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

    How many nuclei are typically found in a single cell?

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

    What is the primary function of the mitochondria in a cell?

    <p>Producing chemical energy in the form of ATP</p> Signup and view all the answers

    Which cell component is primarily responsible for protein synthesis?

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

    Which organelle acts like a cellular post office by sorting and dispatching proteins?

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

    What is the main role of lysosomes within a cell?

    <p>Recycling waste materials and breaking down unwanted components</p> Signup and view all the answers

    Which of the following accurately describes the rough endoplasmic reticulum (RER)?

    <p>Involved in the production and transport of proteins</p> Signup and view all the answers

    What features distinguish chromosomes within the cell?

    <p>Composed of DNA wrapped around protein scaffolds</p> Signup and view all the answers

    Which cell component is characterized as a network of flattened membranes and plays a role in lipid production?

    <p>Smooth Endoplasmic Reticulum (SER)</p> Signup and view all the answers

    Which structure is most directly involved in mitosis and positioning the nucleus?

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

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