Unit 4: Cellular Processes - Protein Functions

Question 1

Attachment

Answer 1

Gives membrane a framework, attaches to the cytoskeleton on the inside and extracellular matrix on the outside. ADHERE.

Question 2

Glycoproteins

Answer 2

Cell-cell recognition, attached carbohydrates. NAME TAG (RECOGNITION).

Question 3

Junctions

Answer 3

Formed between cells.

Question 4

Enzymes

Answer 4

Carry out sequential steps in a pathway. REACTION

Question 5

Receptors

Answer 5

Receive messages from chemical messengers from other cells, protein triggers a chain reaction and relays the message to cell. SIGNAL.

Question 6

Transport

Answer 6

Selectively permeable: nonpolar, hydrophobic easily passes through; polar, hydrophilic cannot easily pass through, so they require proteins. ALLOWS FOR TRANSPORT.