BIOLOGY 12TH ED (LL) W/ CONNECT
12th Edition
ISBN: 9781264898091
Author: Raven
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 9, Problem 2U
Signal transduction pathways
a. are necessary for signals to cross the membrane.
b. include the intracellular events stimulated by an extracellular signal.
c. include the extracellular events stimulated by an intracellular signal.
d. are only found in cases where the signal can cross the membrane.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
All cells of a multicellular organism may not respond in the same wayto a particular ligand (signaling molecule) that binds to a cell surfacereceptor. The difference in response may be due toa. the type of receptor for the ligand that the cell expresses.b the affinity of the ligand for the receptor in a given cell type.c. the type of signal transduction pathways that the cell expresses.d. the type of target proteins that the cell expresses.e. all of the above.
Carbon monoxide is a deadly gas. This is due to its quick activation of specific signaling pathways in cells of our body. Since this is a gas, it most likely uses....
Select one:
a. A transmembrane cell surface receptor since it cannot pass through cell membranes
b. A voltage-gated ion channel receptor since it creates a charge when crossing the cell membrane
c. An intracellular receptor since it can easily diffuse across a membrane
Paracrine signaling is characterized by ligands that are
a. produced by the cell itself.
b. secreted by neighboring cells.
c. present on the plasma membrane of neighboring cells.
d. secreted by distant cells.
Chapter 9 Solutions
BIOLOGY 12TH ED (LL) W/ CONNECT
Ch. 9.1 - Prob. 1LOCh. 9.1 - Prob. 2LOCh. 9.2 - Prob. 1LOCh. 9.3 - Prob. 1LOCh. 9.3 - Prob. 2LOCh. 9.4 - Prob. 1LOCh. 9.4 - Describe how information crosses the membrane in...Ch. 9.4 - Prob. 3LOCh. 9.4 - Prob. 4LOCh. 9.5 - Prob. 1LO
Ch. 9.5 - Prob. 2LOCh. 9 - Paracrine signaling is characterized by ligands...Ch. 9 - Signal transduction pathways a. are necessary for...Ch. 9 - The function of a ____is to add phosphates to...Ch. 9 - Which of the following receptor types is NOT a...Ch. 9 - How does the function of an intracellular receptor...Ch. 9 - Signaling through receptor tyrosine kinases often...Ch. 9 - Prob. 7UCh. 9 - Which of the following best describes the...Ch. 9 - Prob. 1ACh. 9 - The ion Ca2+ can act as a second messenger because...Ch. 9 - Different receptors can have the same effect on a...Ch. 9 - In comparing small G proteins like Ras and GPCR...Ch. 9 - Prob. 5ACh. 9 - The receptors for steroid hormones and peptide...Ch. 9 - Describe the common features found in all examples...Ch. 9 - The sheet of cells that form the gut epithelium...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Explain the three stages of cell signaling. a. receptor b. transduction c. response. Attach imagesarrow_forwardThe receptor-associated proteins called G proteins... A. bind GTP. B. can activate or inhibit an effector protein, e.g. adenyl cyclase. C. interact with membrane-associated proteins to influence their function. D. both a and b E. a, b, and carrow_forwardA biochemist is designing a new drug that will mimic the shape and function of a particular intercellular signaling molecule. Therefore she must produce a molecule that will bind to the receptor protein and... A. produce a cellular response by altering the Na+/K+ pump located near the receptor site. B. induce a change in the receptor molecule shape, which will ultimately prevent a cellular response. C. induce a change in the receptor molecule shape, which will ultimately produce a cellular response. D. induce a change in the phospholipid bilayer that causes a polar reversal allowing the molecules to be endocytose (engulfed).arrow_forward
- What is the specific cause of hypertension (the communication breakdown at the molecular level): The type of cell communication breakdown that causes this disease is through: a. Losing the signal - b. Signal not reaching its target - c. Target ignoring the signal d. Too much signal e. Multiple breakdowns f. Other (please describe)arrow_forwardWhich of the following statements regarding polarized membranes is incorrect? a. There is a separation of the charge by a membrane, resulting in its ability to do work. b. An RMP of –60 mV indicates that there are more positive ions inside the axon than an RMP of –70 mV. c. A resting membrane potential (RMP) of –90 mV indicates the there are more positive ions inside the axon than an RMP of –70 mV. d. There is a difference in the charges found on the inside of the membrane to the outside.arrow_forwardIdentify which of the following statements is a lie? Select one: a. The docking of ligands to the receptor causes receptor-associated proteins to activate another protein to continue the signaling cascade and one example of this event is the binding of epidermal growth factor (EGF) to the EGF receptor . b. Ligands are important to initiate signal Transduction pathway. c. Ligands detach from the cell surface receptor in order to change the conformation of the receptor and initiate the signaling pathway.arrow_forward
- Which of the following elements may be in the transduction part of cell signaling? Select one: a. A phosphatase b. A kinase c. cyclin AMP d. ions e. All answers are correctarrow_forwardMatch the following description of a cell signal with signal type A. signals across gap junctions B. signal involves a neurotransmitter, short lived C. signal can travel long distances and to many cell types D. communication between neighboring cells, signals short lived E. None of the Above A 1. Paracrine select 2. Direct contact select v 3. Endocrine select - 4. synaptic select 5. Cyclic AMParrow_forwardWhich of the following questions regarding second messengers is false? a. They are needed to mediate the action of nonpolar regulatory molecules. b. They are released from the plasma membrane into the cytoplasm of cells. c. They are produced in response to the binding of regulatory molecules to receptors in the plasma membrane. d. They produce the intracellular actions of polar regulatory molecules.arrow_forward
- In the light of the mechanisms of signal transduction pathways, describe how: 1. the immune system is alerted and responds 2. immune responses against infected cells can lead to organ failurearrow_forwardFor a signal to be sent down an axon of a nerve cell, an action potential must be generated. This is done by.. Select one: a. G-protein coupled receptors bind ligand, a phosphorylation cascade occurs, this causes a change in charge of the membrane due to the addition of phosphates allowing Na+ channels to open. b. Ligand-gated K+ channels open, allowing K+ to rush out of the cell and depolarize that part of the membrane. This change in charge opens neighboring voltage-gated channels. c. Ligand-gated Na+ channels open, allowing Na+ to rush in. This then depolarizes that region of the membrane resulting in opening neighboring voltage-gated channels. d. Receptor tyrosine kinases have two Na+ molecules bind, this opens voltage-gated channels allowing the “signal” to pass down the axon.arrow_forwardYou perform a competition study on a GPCR. You have isolated the plasma membrane from cells which contains the GPCR of interest. If an agonist and an inverse agonist are at equal concentrations in your study but the inverse agonist has a 10 x higher affinity for the receptor than the agonist, what would you expect to be the overall outcome to be? More of the agonist is bound and so most of the receptor is in its active conformation and is stimulated More of the inverse agonist is bound and so most of the receptor is in its inactive conformation and is unstimulated.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license