Question 1

Which type of membrane protein is primarily responsible for cell recognition, such as in blood group determination?

Accepted Answer

Glycoproteins

Question 2

A mutation causes a cell to lose its ability to respond to external signals. Which membrane protein is most likely affected?

Accepted Answer

Receptor proteins

Question 3

Which of the following is an example of a function performed by extracellular matrix proteins?

Accepted Answer

Contact between cells to help make tissues

Question 4

G-protein coupled receptors (GPCRs) are involved in which of the following processes?

Accepted Answer

Transmitting signals from outside to inside the cell

Question 5

Which membrane protein is associated with only one side of the membrane and does not pass through both layers?

Accepted Answer

Peripheral proteins

Question 6

Keratin and collagen are examples of which type of membrane protein?

Accepted Answer

Extracellular matrix proteins

Question 7

Which function is NOT typically associated with membrane proteins?

Accepted Answer

DNA replication

Question 8

A cell is unable to stretch and respond to mechanical forces. Which protein is most likely deficient?

Accepted Answer

Extracellular matrix protein

Question 9

Which of the following best describes the role of MHC proteins in the cell membrane?

Accepted Answer

Cell recognition for immune response

Question 10

If a cell cannot recognize neighboring cells, which process is most likely impaired?

Accepted Answer

Cell recognition

Question 11

Which membrane protein is most directly involved in the transport of substances across the cell membrane?

Accepted Answer

Transporter proteins

Question 12

A patient has a genetic disorder affecting the G-protein inside the cell membrane. Which cellular process is most likely disrupted?

Accepted Answer

Signal transduction

Question 13

Which of the following is a correct statement about peripheral membrane proteins?

Accepted Answer

They are only associated with one side of the membrane

Question 14

Which protein type is most likely to be involved in tissue formation?

Accepted Answer

Extracellular matrix proteins

Question 15

Which of the following is an example of a recognition protein in the cell membrane?

Accepted Answer

MHC

Question 16

Which membrane protein is most likely to be involved in the immune system's ability to distinguish self from non-self?

Accepted Answer

Recognition proteins

Question 17

A scientist is studying how cells communicate with each other. Which membrane protein should they focus on?

Accepted Answer

Receptor proteins

Question 18

Which of the following is NOT a function of extracellular matrix proteins?

Accepted Answer

Transporting ions

Question 19

Which protein is activated by a receptor on the inner side of the membrane and transmits a signal to the nucleus?

Accepted Answer

G-protein

Question 20

Which of the following best describes the role of glycoproteins in the cell membrane?

Accepted Answer

Cell recognition

Membrane Proteins: Types, Functions, and Examples

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