Multiple Choice on Cell Signaling

MCQ on Cell Signaling

1.     Cell Signaling is the ability of a cell to  

a)     Receive signals from the environment

b)     Transmit signals to other cells

c)      Process signals within cells

d)     All of the above

2.     Signaling molecules in cell Signaling are often chemicals called as

a)     signals

b)     ligands

c)      effectors

d)     inducers

3.     Which of the following statement is incorrect regarding cell signaling?

a)     Sender cell secrete chemicals called ligands

b)     Target cell has a receptor to receive ligand

c)      Receptor is always on the plasma membrane of the target cell

d)     Hormones are signaling molecules or ligands

4.     If a cell targets itself as in the case of T cell proliferation by cytokines; then the signaling is called

a)     Autocrine signaling

b)     Paracrine signaling

c)      Endocrine signaling

d)     Direct signaling

5.     Which of the following is an example of paracrine signaling?

a)     T Cell Proliferation by Cytokines

b)     Secretion of IL-1 by macrophages

c)      Synaptic signaling

d)     Plasmodesmata

6.     A cell targets a distant cell through the bloodstream. This type of signaling is called

a)     Autocrine signaling

b)     Paracrine signaling

c)      Endocrine signaling

d)     Direct signaling

7.     Plasmodesmata in plants and gap junctions in animals are examples of  

a)     Autocrine signaling

b)     Paracrine signaling

c)      Endocrine signaling

d)     Direct signaling

8.     All the following are ligands except

a)     Nitric oxide

b)     Thromboxane

c)      Carbon monoxide

d)     Carbon dioxide

9. The four types of cell signaling; Autocrine, endocrine, paracrine and direct signaling is based on

a)     Types of ligands

b)     Chemical complexity of ligands

c)      Receptors on the target cell

d)     distance travelled by the ligands    

10.Signaling of hormones is an example of

a)     Autocrine signaling

b)     Paracrine signaling

c)      Endocrine signaling

d)     Direct signaling

 

Answers

Understand more: Diagram Quiz on Cell Signaling 

1.     d) All of the above

2.     b) ligands

3.     c) Receptor is always on the plasma membrane of the target cell

4.     a) Autocrine signaling

5.     c) Synaptic signaling

6.     c) Endocrine signaling

7.     d) Direct signaling

8.     d) Carbon dioxide

9.     d) distance travelled by the ligands

10.c) Endocrine signaling