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Cytoskeleton Definition and Functions

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Questions and Answers

What is the main function of the cytoskeleton?

Cell division

Extracellular matrix adhesion

Transporting organelles

Providing structural support for the cell (correct)

How does the cytoskeleton aid in cell motility?

By helping cells move in their environment (correct)

By forming a nucleus

By transporting vesicles

By storing genetic material

Which statement accurately describes the appearance of the cytoskeleton?

It is only found outside the cell

It appears as small spherical structures

It resembles tent poles inside a circus tent (correct)

It looks like a smooth surface inside the cell

Besides providing structural support, what other function does the cytoskeleton perform?

Anchoring the cell to the extracellular matrix Signup and view all the answers

How does the cytoskeleton contribute to cell to cell contact?

By facilitating intracellular communication Signup and view all the answers

What is the main function of microfilaments in the cytoskeleton?

Cell motility and muscle contraction Signup and view all the answers

Which protein makes up the intermediate filaments in the cytoskeleton?

Keratin Signup and view all the answers

What is the function of myosins in the cytoskeleton?

Sliding actin filaments in muscle cells Signup and view all the answers

Which component of the cytoskeleton is essential for moving chromosomes during cell division?

Microtubules Signup and view all the answers

In what direction do dyneins move along microtubules?

From the plus end to the minus end Signup and view all the answers

What is the function of taxol, a toxin produced by a tree?

Prevents microtubules from destabilizing Signup and view all the answers

Why is cytoplasmic streaming particularly prominent in plant cells?

To optimize photosynthesis Signup and view all the answers

What is the bacterial homolog of actin involved in prokaryotic cytoskeleton?

MreB/Mbl Signup and view all the answers

How does taxol contribute to cancer treatment?

By preventing cancer cells from dividing Signup and view all the answers

In what process does myosin movement along actin cytoskeleton fibers play a role?

Cytoplasmic streaming Signup and view all the answers