Cell Structure and Function

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Questions and Answers

What is the basic unit of living things?

  • Organs
  • Atoms
  • Molecules
  • Cells (correct)

What are living things composed of?

  • Systems
  • Cells (correct)
  • Organs
  • Tissues

Which organisms consist of many cells and are called multicellular organisms?

  • Human (correct)
  • Yeast
  • Amoeba
  • Paramecium

What are unicellular organisms?

<p>Organisms with a single cell (A)</p> Signup and view all the answers

What is the main difference between unicellular and multicellular organisms?

<p>$Number of cells$ in the organism (D)</p> Signup and view all the answers

What is an example of a unicellular organism?

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

What did Theodor Schwann and Matthias Schleiden contribute to the development of the cell theory?

<p>They proposed that cells are the basic unit of life (A)</p> Signup and view all the answers

What is a key difference between plant and animal cells?

<p>Plant cells have a cell membrane, while animal cells have a cell wall (C)</p> Signup and view all the answers

What defines eukaryotic and prokaryotic cells?

<p>Presence of a nucleus and other membrane-bound organelles (D)</p> Signup and view all the answers

Why do we study about cells?

<p>To comprehend the basis of life and the processes that occur at the cellular level (A)</p> Signup and view all the answers

What important biological activities take place in the cell?

<p>Cooperative work of muscle cells for movement and nerve cells for gathering information (D)</p> Signup and view all the answers

What is a result of the processes that occur at the cellular level in the human body?

<p>Every action and thought possible due to cooperative work of muscle and nerve cells (C)</p> Signup and view all the answers

Which structure is common to both plant and animal cells?

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

What is the function of the cell wall in a plant cell?

<p>Provide structural support and shape to the cell (C)</p> Signup and view all the answers

Which organelle is responsible for packaging of materials in a cell?

<p>Golgi apparatus (B)</p> Signup and view all the answers

What is the function of the cytoplasm in a cell?

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

Which structure is found external to the cell membrane in plant cells?

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

What is the function of the cell membrane?

<p>To control the entry and exit of substances into and out of the cell (A)</p> Signup and view all the answers

Where is the site for protein synthesis in a cell?

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

What is the function of the nucleus in a cell?

<p>To control cell division and protein synthesis (C)</p> Signup and view all the answers

Which organelle is responsible for transporting materials throughout the cell?

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

What distinguishes the rough endoplasmic reticulum from the smooth endoplasmic reticulum?

<p>The presence of ribosomes (B)</p> Signup and view all the answers

Which cellular structure is responsible for synthesizing proteins?

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

What is the main function of the cytoplasm in a cell?

<p>To provide a fluid-filled region containing organelles (B)</p> Signup and view all the answers

What is the primary role of the cell wall in plant cells?

<p>To provide structural support to the cell (D)</p> Signup and view all the answers

Which cellular component controls what enters into and leaves a cell?

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

Where are chromosomes found in the cell?

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

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