Bisc160 SI Session 10/1/24

Which of the following is NOT a function of a plant's extracellular matrix?

• Limits volume

• Barrier to infection

• Hold tissues together

• Cell growth

An animal's extracellular matrix is composed of

• proteoglycan

• collagen

• cellulose fibers

• keratin

Ions can only move through

• tight junctions

• desmosomes

• gap junctions

• integrin

What protein links the extracellular matrix and cytoskeleton?

• integrin

• dynein

• nexin

• kenesin

Motor protein that slides microtubules

• dynein

• nexin

• kenesin

• integrin

Protein that links microtubules

• dynein

• integrin

• nexin

• kenesin

Motor protein that moves organelles toward the positive end

• dynein

• nexin

• kenesin

• integrin

Motor protein that moves organelles toward the negative end

• dynein

• nexin

• kenesin

• integrin

Which cell junction is composed of intermediate filaments?

• tight junctions

• desmosomes

• gap junctions

• plasmodesmata

Organelles move across

• microtubules

• intermediate filaments

• microfilaments

• desmosomes