Chapter 16 The Cytoskeleton Cell and Molecular Biology

What is A Actin?

• A microfilament have twisted double chain of actin subunits.
• A actin subunits.
• I don't know.
• Doesn't have a double chain.

What is A Myosin?

• An actin fiber.
• making less cell.
• Pulling stacks of actin fiber together and making less cell.
• Making things come together.

In the order of the lesson what are the three main type of fiber.

• microfilaments, microtubuies, and intermediate filaments
• intermediate filaments, microfilaments, and microtubuies
• microfilaments, intermediate filaments, and microtubuies
• microtubules, microfilaments, and intermediate filaments.

What is the Microtubules?

• the losses fibers
• the thickest fibers
• the tightest fibers
• the middle fibers

what is the Microfilaments fiber.

• the smallest.
• the thinnest.
• the longest
• the thinnest and longest.

Which of the following cells lack a cytoskeleton?

• Eukaryotic plant cells
• Prokaryotic bacterial cells
• both a and b
• Prokaryotic cells and eukaryotic animal cells

Microfilaments are made of a protein(s) associated with muscle fibres

• Actin
• Tubulin and actin
• urease
• contractin

Chromosome movement in mitosis and meiosis is regulated by

• microtubules
• microfilaments
• intermediate filaments
• All of thiese

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Which filaments are built from molecules of protein actin?

• Microtubules

• Microfilaments

• Intermediate filaments

• Cilia and flagella

Which part of the cell is made up of a network of filaments that maintains the cell structure?

• Cytoplasm

• Endoplasmic reticulum

• Cytoskeleton

• Vacuoles

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