17 Questions
What is the basic unit of structure and organisation in living organisms?
Cells
What is the heritable material in cells according to the text?
DNA
Which of the following is NOT a major cellular organelle as mentioned in the text?
ATP
What is the basic energy source for cells according to the text?
ATP
In terms of size and organelles, what distinguishes eukaryotic cells from prokaryotic cells?
Eukaryotic cells have membrane-bound organelles and are much larger
Which part of the cell is considered as everything inside the plasma membrane but excluding the nucleus?
Cytoplasm
What type of filaments are comprised of actin molecules assembled in two long chains twisted around each other?
Microfilaments
Which type of fibers are involved in intracellular transportation and cell movement?
Microtubules
What is the function of intermediate filaments in a cell?
Bear tension and weight by anchoring cytoskeleton to plasma membrane proteins
Which type of filaments are found in the cytoplasm of the cell and have a diameter of 8-12 nm?
Intermediate filaments
In what way do microfilaments bear tension and weight in a cell?
By anchoring cytoskeleton to plasma membrane proteins
Which type of filaments function to maintain the size, shape, and integrity of the cell by acting as scaffolding across the cell?
Microtubules
Which of the following best describes microtubules?
Dynamic structures that can assemble and disassemble as required
What is the primary function of microtubules?
To transport and move cellular components within the cell
What is the diameter of a microtubule structure?
25 nm with a central lumen of 15 nm
Which of the following is NOT a function of microtubules?
Facilitating muscle contraction and movement
Which of the following best describes the structure of microtubules?
Comprised of tubulin dimers coiled to form a tubular structure
Test your knowledge about the energy production in cells, the role of mitochondria, and the significance of the cytoskeleton in maintaining cell structure and integrity.
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