06 - Cytoskeleton and motors

Question 1

Cytoskeleton

Answer 1

A network of microtubules, microfilaments, and intermediate filaments that extend throughout the cytoplasm

Question 2

Motor proteins

Answer 2

A protein that interacts with cytoskeleton elements and other cell components, producing movement of the whole cell or parts of the cell

Question 3

Microtubules

Answer 3

A hollow rod composed of tubulin proteins that makes up part of the cytoskeleton in all eukaryotic cells and is found in cilia and flagella

Question 4

Microtubules VS actin filaments

Answer 4

in contrast to microtubules, actin filaments bear tension (pulling forces)

Question 5

Microtubules VS intermediate filaments

Answer 5

Doesn’t have directionality, in the middle of microtubules and actin filaments

Question 6

Tubulin

Answer 6

A dimer consisting of an alpha tubulin and beta tubulin

Question 7

Actin

Answer 7

A globular protein that links into two chains, which twist helically, forming microfilaments

Question 8

Microtubule nucleators

Answer 8

Centrosome- Microtubule organizing center, important during cell division

Centriole - A structure in the centrosome composed of cylinder of microtubule

Question 9

Cilia

Answer 9

Cellular extensions that contain microtubules

Question 10

Flagella

Answer 10

Microscopic hair like structures involved in the locomotion of a cell