Organelles- extracellular metrices

Question 1

functions of the ECM and cell wall

Answer 1

support, adhesion, protection, and a gateway for intercellular communication

Question 2

what is the only cell that doesn’t have a cell wall (has ECM instead)

Answer 2

Animal cells

Question 3

what is the extracellular matrix made of

Answer 3

mostly proteins, glycoproteins

Question 4

3 animal cell junctions

Answer 4

anchoring, tight, and gap junctions

Question 5

anchoring junction

Answer 5

holds cells together

Question 6

tight junctions

Answer 6

seals cells together

Question 7

gap junctions

Answer 7

allows passage (like a pore)

Question 8

plant cell walls are made of

Answer 8

cellulose

Question 9

fungi cell walls are made of

Answer 9

chitin (polysaccharide)a

Question 10

bacteria cell walls made of

Answer 10

peptidoglycans (polysaccharides with peptides attached)

Question 11

cell walls mostly made of

Answer 11

cellulose and other polysaccharides and proteins

Question 12

cell wall structure (2)

Answer 12

middle lamella, plasmodesmata

Question 13

middle lamella

Answer 13

joins adjacent cells

Question 14

perforations in the cell wall that allows intercellular transport and communication

Answer 14

plasmodesmata

Question 15

bacteria cell wall is coated in

Answer 15

polysaccharides called a capsule

Question 16

purpose of a capsule slime layer

Answer 16

aid in surface adhesion and biofilm formation in bacteria