Question 1

In order for a cell to respond to the signaling molecule epinephrine, it must have ____. ​

Accepted Answer

A) ion channels 
B) a lipid bilayer through which epinephrine can pass 
C) receptors with an epinephrine binding site on the cytoplasmic side of the  plasma membrane 
D) receptors with an epinephrine binding site on the plasma membrane surface 
E) nuclear membrane receptors 
A) ion channels 
B) a lipid bilayer through which epinephrine can pass 
C) receptors with an epinephrine binding site on the cytoplasmic side of the  plasma membrane 
D) receptors with an epinephrine binding site on the plasma membrane surface 
E) nuclear membrane receptors

Question 2

The insulin receptor is an example of a(n)____. ​

Accepted Answer

A) G-protein-coupled receptor 
B) hydrophobic receptor 
C) hormone receptor 
D) receptor tyrosine kinase 
E) ion channel receptor 
A) G-protein-coupled receptor 
B) hydrophobic receptor 
C) hormone receptor 
D) receptor tyrosine kinase 
E) ion channel receptor

Question 3

How does cAMP regulate glucose levels in mammals?

Accepted Answer

Glucagon, which is released fr

Question 4

Match between columns
                        Premises: G protein activated by a receptor tyrosine kinase

Accepted Answer

The Answer of cAMP and Ras and hormone receptors and is...

Question 5

Why is cell communication considered evolutionarily ancient?

Accepted Answer

Some protein components of cell communic

Question 6

In plants, the IP3/DAG pathways control the organism's responses to water loss and changes in light intensity.

Accepted Answer

A) True 
 B)False

Question 7

A neuron synthesizes and secretes substance D, which binds to a receptor on the neuron cell membrane, triggering an influx of calcium. Substance D therefore is a ligand for a ____.

Accepted Answer

A) a receptor tyrosine kinase 
B) a G-protein-coupled receptor 
C) a hormone receptor 
D) a ligand-gated ion channel 
E) guanylyl cyclase 
A) a receptor tyrosine kinase 
B) a G-protein-coupled receptor 
C) a hormone receptor 
D) a ligand-gated ion channel 
E) guanylyl cyclase

Question 8

Inactive G proteins are ____. ​

Accepted Answer

A) bound to GMP 
B) bound to GDP 
C) bound to GTP 
D) phosphorylated 
E) unphosphorylated 
A) bound to GMP 
B) bound to GDP 
C) bound to GTP 
D) phosphorylated 
E) unphosphorylated

Question 9

G-protein-coupled receptors are found in both prokaryotes and eukaryotes.

Accepted Answer

A) True 
 B)False

Question 10

In the first step of signal transduction, what is the trigger for the cellular response? ​

Accepted Answer

A) target protein 
B) kinase 
C) ligand 
D) second messenger 
E) effector 
A) target protein 
B) kinase 
C) ligand 
D) second messenger 
E) effector

Question 11

G proteins are inactivated when ____. ​

Accepted Answer

A) GDP is converted to GTP 
B) GTP is converted to GDP 
C) the G protein rebinds the receptor 
D) the G protein is released from the receptor 
E) the receptor is broken down 
A) GDP is converted to GTP 
B) GTP is converted to GDP 
C) the G protein rebinds the receptor 
D) the G protein is released from the receptor 
E) the receptor is broken down

Question 12

How many transmembrane domains are present in a G-protein-coupled receptor? ​

Accepted Answer

A) one 
B) three 
C) five 
D) seven 
E) nine 
A) one 
B) three 
C) five 
D) seven 
E) nine

Question 13

The effects of protein kinases are reversed by another group of enzymes called ____. ​

Accepted Answer

A) hydrolases 
B) catalases 
C) isomerases 
D) phosphatases 
E) proteases 
A) hydrolases 
B) catalases 
C) isomerases 
D) phosphatases 
E) proteases

Question 14

Match between columns
                        Premises: binds to acetylcholine

Accepted Answer

The Answer of IPS1U1B13S1U1B0 /DAG and ligand-gated ion channel and is...

Question 15

Match between columns
                        Premises: communication used by cardiac muscle cells to synchronize heart contractions

Accepted Answer

The Answer of  a and  b and  is...

Question 16

A pathway for cell growth control is conserved between Drosophila and humans, indicating that the pathway is ____.

Accepted Answer

A) also found in prokaryotes 
B) also found in all animals 
C) at least 800 million years old 
D) at least 3.8 billion years old 
E) at least 8 million years old 
A) also found in prokaryotes 
B) also found in all animals 
C) at least 800 million years old 
D) at least 3.8 billion years old 
E) at least 8 million years old

Question 17

In the cAMP pathway, the G protein activates ____. ​

Accepted Answer

A) adenylyl cyclase 
B) diacylglycerol 
C) phospholipase C 
D) inositol triphosphate 
E) phosphodiesterase 
A) adenylyl cyclase 
B) diacylglycerol 
C) phospholipase C 
D) inositol triphosphate 
E) phosphodiesterase

Question 18

In breast cancer, ERα is often lost, which increases cell proliferation.

Accepted Answer

A) True 
 B)False

Question 19

Match between columns
                        Premises: binds to and activates the enzyme guanylyl cyclase

Accepted Answer

The Answer of IPS1U1B13S1U1B0 /DAG and cAMP and hormone receptors is...

Question 20

Ras proteins are of interest to researchers because of their role in ____. ​

Accepted Answer

A) reproduction 
B) linking plant hormones to germination 
C) the development of many types of cancer 
D) relieving cluster headaches 
E) eliciting the fight-or-flight response 
A) reproduction 
B) linking plant hormones to germination 
C) the development of many types of cancer 
D) relieving cluster headaches 
E) eliciting the fight-or-flight response

Exam 9: Cell Communication

In order for a cell to respond to the signaling molecule epinephrine, it must have ____. ​

The insulin receptor is an example of a(n)____. ​

How does cAMP regulate glucose levels in mammals?

Why is cell communication considered evolutionarily ancient?

In plants, the IP3/DAG pathways control the organism's responses to water loss and changes in light intensity.

A neuron synthesizes and secretes substance D, which binds to a receptor on the neuron cell membrane, triggering an influx of calcium. Substance D therefore is a ligand for a ____.

Inactive G proteins are ____. ​

G-protein-coupled receptors are found in both prokaryotes and eukaryotes.

In the first step of signal transduction, what is the trigger for the cellular response? ​

G proteins are inactivated when ____. ​

How many transmembrane domains are present in a G-protein-coupled receptor? ​

The effects of protein kinases are reversed by another group of enzymes called ____. ​

A pathway for cell growth control is conserved between Drosophila and humans, indicating that the pathway is ____.

In the cAMP pathway, the G protein activates ____. ​

In breast cancer, ERα is often lost, which increases cell proliferation.

Ras proteins are of interest to researchers because of their role in ____. ​

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

DNA Structure, Replication, and Organization

From DNA to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technologies: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Animal Nutrition

Regulating the Internal Environment

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

In order for a cell to respond to the signaling molecule epinephrine, it must have ____.

The insulin receptor is an example of a(n)____.

In plants, the IP₃/DAG pathways control the organism's responses to water loss and changes in light intensity.

Inactive G proteins are ____.

In the first step of signal transduction, what is the trigger for the cellular response?

G proteins are inactivated when ____.

How many transmembrane domains are present in a G-protein-coupled receptor?

The effects of protein kinases are reversed by another group of enzymes called ____.

In the cAMP pathway, the G protein activates ____.

Ras proteins are of interest to researchers because of their role in ____.