Question 1

The subunits of the heterotrimeric G protein are called ___________ subunits.

Accepted Answer

A) $\alpha$,$\beta$ and $\chi$ 
B) $\alpha$,$\beta$ and  $\delta$ 
C) $\alpha$,$\beta$ and $\gamma$ 
D) $\alpha$,$\gamma$ and $\delta$ 
E) $\gamma$,$\delta$ and $\eta$ 
A) $\alpha$,$\beta$ and $\chi$ 
B) $\alpha$,$\beta$ and  $\delta$ 
C) $\alpha$,$\beta$ and $\gamma$ 
D) $\alpha$,$\gamma$ and $\delta$ 
E) $\gamma$,$\delta$ and $\eta$

Question 2

While bound to phosphorylated GPCRs,to what else can arrestins bind?

Accepted Answer

A) G proteins 
B) clathrin molecules in clathrin-coated pits 
C) other arrestins 
D) hormones 
E) GRKs 
A) G proteins 
B) clathrin molecules in clathrin-coated pits 
C) other arrestins 
D) hormones 
E) GRKs

Question 3

Which heterotrimeric G proteins function by inhibiting adenylyl cyclase?

Accepted Answer

A) Gs family 
B) Gq family 
C) Gi family 
D) G12/13 family 
E) Gr family 
A) Gs family 
B) Gq family 
C) Gi family 
D) G12/13 family 
E) Gr family

Question 4

The _________ pathway of apoptosis is one in which internal stimuli activate apoptosis.

Accepted Answer

A) extrinsic 
B) external 
C) intrinsic 
D) peripheral 
E) integral 
A) extrinsic 
B) external 
C) intrinsic 
D) peripheral 
E) integral

Question 5

The activation of a common effector by signals from a variety of unrelated receptors,each of which binds to its own ligand,is called _________.

Accepted Answer

A) divergence 
B) convergence 
C) crosstalk 
D) transvergence 
E) coherence 
A) divergence 
B) convergence 
C) crosstalk 
D) transvergence 
E) coherence

Question 6

How is Ras activity turned off?

Accepted Answer

A) It is turned off by phosphorylation. 
B) It is turned off by hydrolysis of its bound GTP to GDP. 
C) It is turned off by hydrolysis of its bound GDP to GTP. 
D) It is turned off by an allosteric inhibitor. 
E) It is turned off by hydrolysis of its bound GTP to GMP. 
A) It is turned off by phosphorylation. 
B) It is turned off by hydrolysis of its bound GTP to GDP. 
C) It is turned off by hydrolysis of its bound GDP to GTP. 
D) It is turned off by an allosteric inhibitor. 
E) It is turned off by hydrolysis of its bound GTP to GMP.

The subunits of the heterotrimeric G protein are called ___________ subunits.

While bound to phosphorylated GPCRs,to what else can arrestins bind?

Which heterotrimeric G proteins function by inhibiting adenylyl cyclase?

The _________ pathway of apoptosis is one in which internal stimuli activate apoptosis.

The activation of a common effector by signals from a variety of unrelated receptors,each of which binds to its own ligand,is called _________.

How is Ras activity turned off?

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics,enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

Exam 15: Cell Signaling and Signal Transduction: Communication Between Cells

The subunits of the heterotrimeric G protein are called ___________ subunits.

While bound to phosphorylated GPCRs,to what else can arrestins bind?

Which heterotrimeric G proteins function by inhibiting adenylyl cyclase?

The _________ pathway of apoptosis is one in which internal stimuli activate apoptosis.

The activation of a common effector by signals from a variety of unrelated receptors,each of which binds to its own ligand,is called _________.

How is Ras activity turned off?

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics,enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters