Which of the following statements is true? A) Profilin delivers G-actin monomers to the (-) end...
Which of the following statements is true?
A) Profilin delivers G-actin monomers to the (-) end of an existing F-actin filament.
B) Filamin bind to filament ends, promoting a change in their length
C) Profilin decreases exchange of ADP for ATP on G-actin monomers
D) Thymosin-β4 binds G-actin to provide reserve actin
Homework Answers
The true statement is :D) Thymosin-β4 binds G-actin to provide reserve actin
Reason:Thymosin binds to ATP G-actin , prevents its polymerisation so as to maintain a reserve pool of it.
Add Answer to:
Which of the following statements is true?
A) Profilin delivers G-actin monomers to the (-) end...
biochem help plz. The balance between the association of actin monomers to form a filament and...
biochem help plz.
The balance between the association of actin monomers to form a filament and dissociation of monomers from the actin filament is a Myosin independent b. Myosin dependent c. ATP independent d.ATP dependent e. charge dependent QUESTION 2 Which statement about actin is correct? a Actin is expressed only in muscle b. Actin is expressed at low levels in most cells. GNo known function has been described for actin in nonmuscle cells. d. Nonmuscle cells only contain G...
An explanation would be appreciated. Thank you! Compared to the normal situation, in which actin monomers...
An explanation would be appreciated. Thank you!
Compared to the normal situation, in which actin monomers carry ATP, what do you predict would happen if actin monomers that bind a nonhydrolyzable form of ATP were incorporated into actin filaments? (a) Actin filaments would grow longer. (b) Actin filaments would grow shorter because depolymerization would be enhanced. (c) Actin filaments would grow shorter because new monomers could not be added to the filaments. (d) No change, as addition of monomers binding...
Question 1 of 8 2.0 Points Which of the following statements about the cytoskeleton is false?...
Question 1 of 8 2.0 Points Which of the following statements about the cytoskeleton is false? A. The cytoskeleton is made up of three types of protein filaments. B. The cytoskeleton controls the location of organelles in eukaryotic cells. C. Covalent bonds between protein monomers hold together cytoskeletal filaments. D. The cytoskeleton of a cell can change in response to the environment. Reset Selection Question 2 of 8 2.0 Points Which of the following statements about the function of the...
b) Which of the following are true statements about myosin? Select all the true statements. Each...
b) Which of the following are true statements about myosin? Select all the true statements. Each myosin head has a binding site for actin and ATP The interaction between myosin and actin converts chemical energy to mechanicall work muscle contraction, thick and thin filaments slide past each other causing an overall lengthening of the muscle. In a muscle cell, myosin tails group together to form a thick filament The myosin-actin reaction cycle is powered by ATP hydrolysis The tail of...
For each of the following statements, decide whether it is True or False AND provide a...
For each of the following statements, decide whether it is True or False AND provide a justification for your decision The hydrolysis of ATP is required both for the contraction and relaxation of skeletal muscles. ANSWER: An actin filament will grow as long as actin monomers continue to be added to the plus end. ANSWER: In most animal cells, dyneins transport materials to the periphery of the cell, whereas kinesins transport material to the cell’s interior. ANSWER:
5. For each of the following statements, decide whether it is True or False AND provide...
5. For each of the following statements, decide whether it is True or False AND provide a justification for your decision A. The hydrolysis of ATP is required both for the contraction and relaxation of skeletal muscles. B. An actin filament will grow as long as actin monomers continue to be added to the plus end. C. In most animal cells, dyneins transport materials to the periphery of the cell, whereas kinesins transport material to the cell's interior.
5. For each of the following statements, decide whether it is True or False AND provide...
5. For each of the following statements, decide whether it is True or False AND provide a justification for your decision (10 points each). A. The hydrolysis of ATP is required both for the contraction and relaxation of skeletal muscles. ANSWER: B. An actin filament will grow as long as actin monomers continue to be added to the plus end. ANSWER: C. In most animal cells, dyneins transport materials to the periphery of the cell, whereas kinesins transport material to...
18. Which of the following statements is not true concerning glycolysis in anaerobic muscle A. Its...
18. Which of the following statements is not true concerning glycolysis in anaerobic muscle A. Its rate is slowed by a high (ATP]/(ADP) ratio B. It results in no change of NADH C. It results in net synthesis of ATP D. It is an endergonic process 19. Which of the following enzymes catalyzes the first committed step of glycolysis? A. phosphofructokinase B. hexokinase C. phosphoglucomutase D. glucose-6-phosphate isomerase E. triose phosphate isomerase
BIOCHEMISTRY please answers the both questions Q1: Which of the following statements about enzymes are true?...
BIOCHEMISTRY please answers the both questions Q1: Which of the following statements about enzymes are true? (Check all that apply) A) Enzymes affect the activation energy of the reaction. b) Enzymes affect the equilibrium position of a chemical reaction. c) Enzymes affect the Gibbs Free Energy change of a chemical reaction. d) Enzymes decrease the time needed for a reaction to reach equilibrium. Q2: What best describes the nature of the active site. a) It is a rigid pocket that...
open to look at all pictures Multiple Choice Which of the following are true of G...
open to look at all pictures
Multiple Choice Which of the following are true of G protein coupled receptors (GPCRs) A) peripheral membrane protein B) Activates G proteins on cytoplasmic side C) Receptors to lipid soluble hormones D) Binds ligands on cytoplasmic side Submit CASTILLO NAVA Invoice Soon Multiple Choice Which of the following are true of G proteins A) Are integral membrane proteins B) Works with G protein coupled receptors C) dimer D) On the exoplasmic side of membrane...
biochem help plz.
The balance between the association of actin monomers to form a filament and dissociation of monomers from the actin filament is a Myosin independent b. Myosin dependent c. ATP independent d.ATP dependent e. charge dependent QUESTION 2 Which statement about actin is correct? a Actin is expressed only in muscle b. Actin is expressed at low levels in most cells. GNo known function has been described for actin in nonmuscle cells. d. Nonmuscle cells only contain G...
An explanation would be appreciated. Thank you!
Compared to the normal situation, in which actin monomers carry ATP, what do you predict would happen if actin monomers that bind a nonhydrolyzable form of ATP were incorporated into actin filaments? (a) Actin filaments would grow longer. (b) Actin filaments would grow shorter because depolymerization would be enhanced. (c) Actin filaments would grow shorter because new monomers could not be added to the filaments. (d) No change, as addition of monomers binding...
b) Which of the following are true statements about myosin? Select all the true statements. Each myosin head has a binding site for actin and ATP The interaction between myosin and actin converts chemical energy to mechanicall work muscle contraction, thick and thin filaments slide past each other causing an overall lengthening of the muscle. In a muscle cell, myosin tails group together to form a thick filament The myosin-actin reaction cycle is powered by ATP hydrolysis The tail of...
5. For each of the following statements, decide whether it is True or False AND provide a justification for your decision A. The hydrolysis of ATP is required both for the contraction and relaxation of skeletal muscles. B. An actin filament will grow as long as actin monomers continue to be added to the plus end. C. In most animal cells, dyneins transport materials to the periphery of the cell, whereas kinesins transport material to the cell's interior.
5. For each of the following statements, decide whether it is True or False AND provide a justification for your decision (10 points each). A. The hydrolysis of ATP is required both for the contraction and relaxation of skeletal muscles. ANSWER: B. An actin filament will grow as long as actin monomers continue to be added to the plus end. ANSWER: C. In most animal cells, dyneins transport materials to the periphery of the cell, whereas kinesins transport material to...
18. Which of the following statements is not true concerning glycolysis in anaerobic muscle A. Its rate is slowed by a high (ATP]/(ADP) ratio B. It results in no change of NADH C. It results in net synthesis of ATP D. It is an endergonic process 19. Which of the following enzymes catalyzes the first committed step of glycolysis? A. phosphofructokinase B. hexokinase C. phosphoglucomutase D. glucose-6-phosphate isomerase E. triose phosphate isomerase
open to look at all pictures
Multiple Choice Which of the following are true of G protein coupled receptors (GPCRs) A) peripheral membrane protein B) Activates G proteins on cytoplasmic side C) Receptors to lipid soluble hormones D) Binds ligands on cytoplasmic side Submit CASTILLO NAVA Invoice Soon Multiple Choice Which of the following are true of G proteins A) Are integral membrane proteins B) Works with G protein coupled receptors C) dimer D) On the exoplasmic side of membrane...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago