Cytoskeleton, Extracellular Matrix and Cell Junctions Quiz

1

What is the monomer of microtubules?

1

Tubulin is a homodimer.

1

The addition of tubulin monomers to a microtubule is quicker at which end?

1

Microtubules are more rigid than microfilaments.

1

Is the positive or negative end of the microtubule embedded inside the centromere?

1

Microfilaments are a double helix of actin

1

A role of intermediate filaments is to provide strength and support to cells.

1

Intermediate filaments are:

1

Microtubule motors are energy dependent (i.e. they require ATP.)

1

Which of these microtubule motors are minus end directed?

1

Kinesin moves things towards the cell body/nucleus.

1

Which of the following statements are true regarding collagen:

i) it has a triple-helical structure
ii) collagen molecules run at right angles to each other
iii) there are approximately 20-40 variants
iv) collagen is made by ribosomes which are freely moving in the cytoplasm

1

Is elastin a highly hydrophobic or hydrophilic protein?

1

The extracellular matrix helps regulate cell differentiation

1

Tight junctions are which type of cell junction:

1

Tight junctions allow the specialisation of membranes.

1

Adheren junctions link to:

1

Desmosomes attach cells to the basal lamina.

1

Which molecule attaches desmosomes to each other?

1

Which molecule attaches tight junctions to each other?

1

Which molecule attaches hemidesmosomes to the basal lamina?

BSc Biomedical Science Year 1 Quiz am Cytoskeleton, Extracellular Matrix and Cell Junctions Quiz, erstellt von rachel-chads am 28/05/2014.

Cytoskeleton, Extracellular Matrix and Cell Junctions Quiz

Cytoskeleton, Extracellular Matrix and Cell Junctions Quiz

What is the monomer of microtubules?

Tubulin is a homodimer.

The addition of tubulin monomers to a microtubule is quicker at which end?

Microtubules are more rigid than microfilaments.

Is the positive or negative end of the microtubule embedded inside the centromere?

Microfilaments are a double helix of actin

A role of intermediate filaments is to provide strength and support to cells.

Intermediate filaments are:

Microtubule motors are energy dependent (i.e. they require ATP.)

Which of these microtubule motors are minus end directed?

Kinesin moves things towards the cell body/nucleus.

Which of the following statements are true regarding collagen: i) it has a triple-helical structure ii) collagen molecules run at right angles to each other iii) there are approximately 20-40 variants iv) collagen is made by ribosomes which are freely moving in the cytoplasm

Is elastin a highly hydrophobic or hydrophilic protein?

The extracellular matrix helps regulate cell differentiation

Tight junctions are which type of cell junction:

Tight junctions allow the specialisation of membranes.

Adheren junctions link to:

Desmosomes attach cells to the basal lamina.

Which molecule attaches desmosomes to each other?

Which of the following statements are true regarding collagen:

i) it has a triple-helical structure
ii) collagen molecules run at right angles to each other
iii) there are approximately 20-40 variants
iv) collagen is made by ribosomes which are freely moving in the cytoplasm