Homework Answers
1. The molecule A binds to B and the molecule B becomes active and stimulats the intracellular signal molecule C that is converted to molecule D. Therefore, the intracellular signal is molecule C. Option c is correct.
2. The molecules A and E bind to plasma membrane protein B. The ligand binding to receptor brings the changes in intracellular signals. Thus, the plasma membrane protein B is receptor. Option b is correct.
3. The molecules A and E bind to plasma membrane protein B molecule. Binding of E to B no changes are resulted. The binding of A to B changes the intracellular molecule C to D. Therefore, the molecule a is an extracellular signal. Option a is correct.
Add Answer to:
1,2, and 3
The following paragraph is for questions #1-3. Extracellular molecules A and E bind...
What molecules enable cells to respond to a specific extracellular signaling molecule? a. Specific receptor carbohydrates...
What molecules enable cells to respond to a specific extracellular signaling molecule? a. Specific receptor carbohydrates localized to the inner plasma membrane surface b. Plasma lipid bilayer c. Ion channels d. Receptors that specifically recognize and bind that particular messenger molecule
or each of the following sentences, select the best word or phrase from the list below to fill in the blanks ot all words or phrases will be used; each word or phrase should be used only once 38....
or each of the following sentences, select the best word or phrase from the list below to fill in the blanks ot all words or phrases will be used; each word or phrase should be used only once 38. (3) An extracellular signal molecule can act to change a cell's behavior by acting through cell that control intracellular signaling proteins. These intracellular proteins that bring surface signaling proteins ultimately change the activity of about cell responses. Intracellular signaling proteins can...
1. A person has a mutation in their leptin gene, such that the leptin they make...
1. A person has a mutation in their leptin gene, such that the leptin they make cannot bind to the leptin receptor. What do you predict about their weight/BMI? WHY? 2. A person has a mutation in their leptin receptor, such that it can bind to leptin, but then the receptor fails to activate. Will leptin be a viable treatment for this person? WHY? 3. Insulin binds to an insulin receptor on a cell. The receptor dimerizes and becomes phosphorylated...
Which of the following statements accurately describe receptor tyrosine kinases (RTKs)? There is more than one...
Which of the following statements accurately describe receptor tyrosine kinases (RTKs)? There is more than one correct answer. Select all the true statements. A) A ligand binds to the extracellular domain. B) RTKs are usually (but not always) monomeric in the absence of ligand. C) Ligand binding is required for autophosphorylation (cross-phosphorylation). D) The intracellular domain has phosphatase domains. E) The alpha subunit contains seven alpha helices that span the membrane. F) The structure includes a transmembrane helix.
Answer all questions Following graphs, the cellular response, as measured in real time by the concentration...
Answer all questions
Following graphs, the cellular response, as measured in real time by the concentration of a certain active effector protein, is plotted over time for five cell types (A to E) that are treated with three different concentrations of a signal molecule. During the time period indicated by the horizontal gray bar. the signal molecule is present in the culture media at a concentration of 1 nM (dotted curve), 5 nM (gray curve), or 25 nM (solid curve)....
1. In allosteric enzyme inhibition, the active site is blocked by another molecule a. True b....
1. In allosteric enzyme inhibition, the active site is blocked by another molecule a. True b. False 2. In the second-messenger system of hormonal action, a. The presence of a small amount of one hormone (the second messenger) is essential to permit another hormone (the first messenger) to exert its full effect. b. A tropic hormone (the first messenger) stimulates secretion of another hormone (the second messenger). c. The hormone first binds to a specific surface receptor (the first messenger),...
4. The protein shown below is an enzyme-linked receptor. This means that this protein... Circle your...
4. The protein shown below is an enzyme-linked receptor. This means that this protein... Circle your answer a) can speed up chemical reactions. b) can bind to certain signaling molecules. c) all of the above. D. Think about the enzyme-linked receptor we discussed in class. After the signaling molecules binds to this receptor, it causes the active site on the receptor to become available. What binds to this active site? E. Consider the molecule you named in the previous question....
1. True or False: Scavenger and C-type lectin receptors bind pathogens and induce phagocytosis by macrophages....
1. True or False: Scavenger and C-type lectin receptors bind pathogens and induce phagocytosis by macrophages. 2. Which of the following is a location of Toll-like receptor (TLR) expression in the cell? a. Plasma membrane b. Mitochondrial membrane c. Cytoplasm d. Nucleus 3. True or False: Between the four different inflammasome complexes, bacterial byproducts and DNA can be recognized to induce inflammation. 4. Pattern recognition receptors that detect viral infections have primarily ___________ expression. 1. Intracellular 2. Extracellular 3. Free...
18. Which of the following statements correctly describe the role of transcription in the initiation of...
18. Which of the following statements correctly describe the role of transcription in the initiation of transcription in eukaryotes? A. Some transcription factors must bind to the promoter before RNA polymerası bind. B. Some transcription factors must bind to the promotor proximal element to en significant levels of mRNA production C. Some transcription factors can bind to enhancer elements thousands of base away from the gene D. Some transcription factors can bind to silencer elements that might be locate thousands...
1. secreted by postganglionic sympathetic neurons at Islet alpha cells 2. extracellular binding site for (1.)...
1. secreted by postganglionic sympathetic neurons at Islet alpha cells 2. extracellular binding site for (1.) 3. type of membrane protein defined by the topology of (2.) 4. type of (2.) binding site based on its ultimate function 5. found bound to the intracellular face of UN-liganded (2.) 6. immediate consequence of (2.)’s GEF action on (5.) 7. what (6.) directly activates 8. product of (7.) 9. what (8.) directly binds to 10. what (9.) inhibits with its …RRGAI… peptide...
or each of the following sentences, select the best word or phrase from the list below to fill in the blanks ot all words or phrases will be used; each word or phrase should be used only once 38. (3) An extracellular signal molecule can act to change a cell's behavior by acting through cell that control intracellular signaling proteins. These intracellular proteins that bring surface signaling proteins ultimately change the activity of about cell responses. Intracellular signaling proteins can...
Answer all questions
Following graphs, the cellular response, as measured in real time by the concentration of a certain active effector protein, is plotted over time for five cell types (A to E) that are treated with three different concentrations of a signal molecule. During the time period indicated by the horizontal gray bar. the signal molecule is present in the culture media at a concentration of 1 nM (dotted curve), 5 nM (gray curve), or 25 nM (solid curve)....
4. The protein shown below is an enzyme-linked receptor. This means that this protein... Circle your answer a) can speed up chemical reactions. b) can bind to certain signaling molecules. c) all of the above. D. Think about the enzyme-linked receptor we discussed in class. After the signaling molecules binds to this receptor, it causes the active site on the receptor to become available. What binds to this active site? E. Consider the molecule you named in the previous question....
18. Which of the following statements correctly describe the role of transcription in the initiation of transcription in eukaryotes? A. Some transcription factors must bind to the promoter before RNA polymerası bind. B. Some transcription factors must bind to the promotor proximal element to en significant levels of mRNA production C. Some transcription factors can bind to enhancer elements thousands of base away from the gene D. Some transcription factors can bind to silencer elements that might be locate thousands...
Most questions answered within 3 hours.
-
A study is conducted
to determine the simple linear regression relation (if any) between
average temperature...
asked 13 minutes ago -
Twenty percent of all telephones of a certain type are submitted
for service while under warranty....
asked 43 minutes ago -
Which is a method of transmitting pathogens from one host to
another by carrying microorganisms inside...
asked 22 minutes ago -
In a memo written to a US trade policy maker, outline an
argument for the role...
asked 14 minutes ago -
Ten young adults living in California rated the taste of a newly
developed sushi pizza topped...
asked 33 minutes ago -
In a titration experiment, 29.9 mL of 0.797 M HCOOH neutralizes
20.6 mL of Ba(OH)2. What...
asked 30 minutes ago -
A
roller coaster cart of mass 312 kg travels around a horizontal
curve of radius 41.3...
asked 43 minutes ago -
M1=7/Hr ==> M2=6/Hr ==> M3=9/Hr ==> M4=8/Hr ==>
Demand = 10/Hr
The diagram shows the hourly...
asked 29 minutes ago -
(Cash Flow Statement) Consider the following potential events
that might have taken place at Global Conglomerate...
asked 35 minutes ago -
What kinds of transitions form the basis for AA and AE?
Can the detector differentiate wavelengths...
asked 43 minutes ago -
If I have a function in python, say show(B), how would I code it
so that...
asked 44 minutes ago -
Size properly the power supply that you need to purchase if you
have the following equipment....
asked 45 minutes ago