1. Allow cells to identify other cells or other molecules. a) Marker molecules b

ID: 144382 • Letter: 1

Question

1. Allow cells to identify other cells or other molecules.

a) Marker molecules
b) Receptor proteins
c) Channel proteins
d) Carrier Proteins
e) ATP-powered pumps
f) Enzymes
g) Attachment Proteins

2. Anchor cells to other cells or extracellular molecules.

a) Marker molecules
b) Channel proteins
c) Attachment Proteins
d) Receptor proteins
e) Carrier Proteins
f) ATP-powered pumps
g) Enzymes

3. Form passageways through the plasma membrane

a) Marker molecules
b) Attachment Proteins
c) ATP-powered pumps
d) Enzymes
e) Channel proteins
f) Receptor proteins
g) Carrier Proteins

4. Move ions or molecules across the membrane

a) Marker molecules
b) Receptor proteins
c) Carrier Proteins
d) Channel proteins
e) Attachment Proteins
f) ATP-powered pumps
g) Enzymes

5. Move specific molecules across the membrane; require ATP

a) Marker molecules
b) Carrier Proteins
c) Enzymes
d) Channel proteins
e) ATP-powered pumps
f) Receptor proteins
g) Attachment Proteins

6. Binding sites for chemical signals in the extracellular fluid.

a) Receptor Proteins
b) Attachment Proteins
c) Channel proteins
d)Enzymes
e) Marker molecules
f) Carrier Proteins
g) ATP-powered pumps

7. Catalyze chemical reactions either inside or outside cells

a) Marker molecules
b) Enzymes
c) Channel proteins
d) Carrier Proteins
e) Attachment Proteins
f) ATP-powered pumps
g) Receptor Proteins

1. Marker molecules

2. Attachment Proteins

3. Channel proteins

4. d) Channel proteins - membrane proteins are integral proteins that move ions or molecules across plasma membrane.

5. ATP-powered pumps

6. Receptor proteins - Receptor identified cell cell or other molecules.

7. b) Enzymes

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