Chapter 6 Key Terms

Question 1

Integral membrane proteins

Answer 1

Hydrophobic and hydrophilic regions, some extend through bilateral others partially embedded

Question 2

Peripheral membrane Proteins

Answer 2

Lack Hydrophobic regions so do not penetrate bilayer

Question 3

Glycoprotein

Answer 3

Sugar + protein, important in signaling, and cells recognizing other cells

Question 4

Transmembrane domains

Answer 4

Extend all the way through membrane

Question 5

Transmembrane protein

Answer 5

Type of integral protein, Inner or outer side of Bilayer

Question 6

Cell adhesion

Answer 6

Connection between cells is strengthened, substances can easily separate then come back together. Ex: sponge cells

Question 7

Cell recognition

Answer 7

One cell specifically recognizes another and bind with it

Question 8

desmosome

Answer 8

“Spot welds” type of cell adhesion that allows materials to move in the extra cellular matrix

Question 9

Gap Junction

Answer 9

Type of cell adhesion allows cells to communicate

Question 10

Tight Junction

Answer 10

Type of cell adhesion, quilted structure prevents substances from moving through. Ex: Lining of bladder to prevent urine leaks

Question 11

Integrin

Answer 11

Type of transmembrane protein that binds to matrix outside to actin filaments inside

Question 12

Endocytosis

Answer 12

The cell engulfs extra cellular material

Question 13

Exocytosis

Answer 13

The cell expels into extracellular space

Question 14

Receptor-mediated-endocytosis

Answer 14

Macromolecules bind to receptor proteins

Question 15

Phagocytosis

Answer 15

The cell “eats” Ex:White blood cells