What are cell junctions?

how cells adhere, interact, and communicate

What are 4 types of Junctions?

1. Plasmodesmata 2. Adhesive 3. separate/tight 4. communication

What is plasmodesmata?

found in plant cells, unifies the plant into one living continuum

What are adhesive junctions?

attaches the cytoskeleton to the ECM

What are some examples of adhesive junctions?

1. Adherens 2. Desmosomes 3. hemidesmosomes 4. Cadherens

How do Adhesive junctions function?

like "rivets" Cell specific

What are separate/tight junctions?

ropes of protein that connect the plasma membranes of cells together to form water-tight barriers

What is the purpose of the tight junctions?

prevents leakage of extracellular fluid

What are communication junctions?

membrane protein that surrounds a pore

what is the purpose of communication junctions?

allow ions, sugar, and amino acids to pass through.

What are communication junctions necessary for?

communication between cells