Biology Chapter: Cell Structure and Function
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Questions and Answers

What is the primary function of the cell membrane?

  • To store genetic material
  • To synthesize proteins
  • To regulate the passage of materials (correct)
  • To provide structural support

What is cytoplasm made up of?

  • Ribosomes and chromatin
  • The nucleus and cell membrane
  • Organelles suspended in cytosol (correct)
  • Only organelles

Which component of the cell contains the genetic material?

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

What is the role of ribosomes within a cell?

<p>To synthesize proteins (C)</p> Signup and view all the answers

What is the function of the nuclear envelope?

<p>To separate the nucleus from the cytoplasm (B)</p> Signup and view all the answers

What is the main purpose of the endomembrane system?

<p>Manufacturing, storing, distributing, and breaking down lipids and proteins (B)</p> Signup and view all the answers

Which part of the cell directs all activities, including protein synthesis?

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

What is the gel-like substance that fills the cell called?

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

What is the primary function of the Rough Endoplasmic Reticulum?

<p>Protein synthesis for secretion (D)</p> Signup and view all the answers

Which of the following characteristics is true about Smooth Endoplasmic Reticulum?

<p>It synthesizes lipids and detoxifies poisons (B)</p> Signup and view all the answers

What is the main role of the Golgi apparatus in the cell?

<p>Sorting and packaging proteins and lipids (A)</p> Signup and view all the answers

What distinguishes vacuoles in plant cells from those in animal cells?

<p>Animal cells have many small vacuoles and plants have a central vacuole (B)</p> Signup and view all the answers

Which organelle is described as a membrane-bound structure containing enzymes for material breakdown?

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

Which of the following organelles is primarily involved in detoxification in cells?

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

What is a primary function of vesicles within cells?

<p>Short-term storage and transport of proteins (D)</p> Signup and view all the answers

What role does the central vacuole serve in plant cells?

<p>Regulates water concentration and supports cell structure (D)</p> Signup and view all the answers

What is the primary function of lysosomes within a cell?

<p>Break down damaged or worn-out cell parts (B)</p> Signup and view all the answers

What distinguishes peroxisomes from lysosomes?

<p>Digestive enzymes for breaking down toxic materials (A)</p> Signup and view all the answers

What role do centrioles play in the cell?

<p>Aid in cell division by forming the mitotic spindle (B)</p> Signup and view all the answers

Which statement about cilia and flagella is true?

<p>Both structures contain nine microtubule doublets arranged in a circle (D)</p> Signup and view all the answers

How do microfilaments primarily contribute to cellular function?

<p>Enable cellular movement (A)</p> Signup and view all the answers

What is the largest structure among the three types of fibers in the cytoskeleton?

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

Which of the following best describes the main purpose of the cytoskeleton?

<p>To maintain the shape of the cell and organize organelles (D)</p> Signup and view all the answers

What key feature differentiates mitochondria from peroxisomes?

<p>Generation of cellular energy through ATP (A)</p> Signup and view all the answers

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