Explore topic-wise MCQs in Life Sciences.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.

1.

Name the family of monomeric G-protein which regulates the growth of the cell?

A. Ras
B. Rab
C. Ran
D. Rho
Answer» B. Rab
2.

Arrange the following sequence of extracellular signaling in the correct order?1) Transport of signal to a target2) Start of signal transduction pathways3) Signaling cell synthesize and release signaling molecules4) Binding of the signal to the specific receptor

A. 2, 3, 4, 1
B. 3, 1, 4, 2
C. 1, 2, 3, 4
D. 1, 3, 4, 2
Answer» C. 1, 2, 3, 4
3.

NAME_THE_FAMILY_OF_MONOMERIC_G-PROTEIN_WHICH_REGULATES_THE_GROWTH_OF_THE_CELL??$

A. Ras
B. Rab
C. Ran
D. Rho
Answer» B. Rab
4.

Which of the following G-protein takes part in the regulation of vision?

A. Gs family
B. Gi family
C. Gq family
D. Golf
Answer» C. Gq family
5.

Name the largest family of cell surface receptor?

A. GPCR
B. Ion-channel receptor
C. Enzyme-linked receptor
D. Nuclear receptor
Answer» B. Ion-channel receptor
6.

Mark the signal molecule which does not interact with cell surface receptor.

A. Insulin
B. Glucagon
C. Testosterone
D. Gastrin
Answer» D. Gastrin
7.

Name the signaling which requires physical contacts between the cells involved.

A. Paracrine signaling
B. Intracellular signaling
C. Autocrine signaling
D. Juxtacrine signaling
Answer» E.
8.

Which of the following signaling pathway is followed by T-lymphocytes in response to antigenic stimulation?

A. Autocrine signaling
B. Juxtacrine signaling
C. Paracrine signaling
D. Endocrine signaling
Answer» B. Juxtacrine signaling
9.

Arrange the following sequence of extracellular signaling in the correct order?

A. Transport of signal to a target
B. Start of signal transduction pathways
C. Signaling cell synthesize and release signaling molecules
D. Binding of the signal to the specific receptor
Answer» C. Signaling cell synthesize and release signaling molecules
10.

In endocrine signaling, the signal molecule act on target cell only in close proximity.

A. True
B. False
Answer» C.
11.

Which of the following signal molecule is NOT used for extracellular signaling?

A. Autocrine
B. Endocrine
C. Paracrine
D. Cyclic AMP
Answer» E.