Cytoskeleton and Cell Surfaces

Question 1

What is the function of microtubules?

Answer 1

• Shape and support the cell

- Acts as tracks along which organelles equipped from the centrosome

Question 2

What is the centrosome made up of?

Answer 2

A pair of centrioles

Question 3

What are centrioles made up of?

Answer 3

A ring of microtubules

Question 4

What is the function of microtubules?

Answer 4

Support cell’s shape

Question 5

What is the function of microfilaments?

Answer 5

Muscle contractions and cell division (cytokinesis in animals)

Question 6

Tight junctions

Answer 6

Junctions that prevent leakage of fluid

Question 7

Anchoring junctions

Answer 7

Junctions that fasten cells together into sheets

Question 8

Gap junctions

Answer 8

Channels that allow small molecules to flow through protein-lined pores between cells

Question 9

Anchoring junctions are otherwise known as…

Answer 9

Desmosomes

Question 10

Answer 10

Microtubule

Question 11

Answer 11

Intermediate filament

Question 12

Answer 12

Microfilament

Question 13

Cilium

Answer 13

The appendages that propel protists

Question 14

Both flagella and cilia are composed of…

Answer 14

microtubules

Question 15

9 + 2 pattern

Answer 15

Where a ring of nine microtubules doublets surround a central pair of microtubules

Question 16

Dynein feet

Answer 16

Bending motor proteins which are moved by cilia and flagella bending them

Question 17

What is the function of extracellular matrices?

Answer 17

• Helping hold cells together

- Protecting and supporting the plasma membrane

Question 18

9 + 2 pattern

Answer 18

Arrangement of microtubules where there is 9 pairs of microtubules on the outside and 2 in the middle