Question

During actin polymerization, ATP hydrolysis is catalyzed by actin binding proteins occurs soon after actin subunits...

During actin polymerization, ATP hydrolysis is

catalyzed by actin binding proteins

occurs soon after actin subunits are added to filaments

occurs soon after G-actin binds ATP

occurs soon after F-actin binds ATP

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

During actin polymerization, ATP Hydrolysis takes place by actin binding proteins occurs soon after G actin binds ATP.

Monomer of actins are called g actin or globular actin which are in ATP bound form , some of the gactin assembles to form filamentous or F actin . Polymerization have three sequential phases such as nucleation, elongation and steady state . G actins forms head to tail to form F or filamentous actin. Actin filaments have two end one positive or growing end another is negative or barbed end. Rate of polymerization is high in positive end .

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Which of the following statements does NOT correctly match an actin-binding protein with its function? A....
Which of the following statements does NOT correctly match an actin-binding protein with its function? A. Cofilin binds to F-actin B. Profilin acts as a GTPase-activating protein (GAP) for G-actin C. The Arp2/3 protein complex nucleates the assembly of branched actin D. CapZ binds to the ends of actin filaments, preventing subunit addition or loss I have a feeling it's C as actin isn't branched. Or is it?
1. What is NOT TRUE regarding the structure of actin filaments? Group of answer choices A....
1. What is NOT TRUE regarding the structure of actin filaments? Group of answer choices A. The actin filament is formed from one type of protein monomer. B. The filament structure is helical. C. The ends of the filament are the same. D. The filament can breakdown once formed. 2. The concentration of cytoplasmic actin monomers is greater than what is necessary for actin filament polymerization. However, most of the actin protein in the cytoplasm remains in monomer form. Why...
1) Under which of the following conditions do you expect to see treadmilling of an actin...
1) Under which of the following conditions do you expect to see treadmilling of an actin filament? The critical concentrations of F-actin are: (+)-end: 0.12 microM (-)-end: 0.6 microM a) The cytosolic concentration of G-actin-ATP is 0.4 microM, but you have added 0.3 microM of the sequestering protein thymosin to your reaction. Thymosin binds to G-actin ATP at a ratio of 1:1. b) The cytosolic concentration of G-actin-ATP is 0.15 microM and of G-actin ADP is 0.2 microM. c) The...
You shiver when you are cold because the ATP hydrolysis that occurs during this (or any...
You shiver when you are cold because the ATP hydrolysis that occurs during this (or any other muscle contraction) produces heat. Newborn mammals lacking fur or hibernating mammals contain brown adipose tissue that generates heat via non shivering thermogenesis. Central to this mechanism is a mitochondrial protein called Thermogenin, which acts as a proton channel but does not synthesize ATP. How does this work? Can you think of another mechanism whereby heat could be generated without shivering?
After the stimulus voltage has been applied, what events occur during the latent period? CHECK ALL...
After the stimulus voltage has been applied, what events occur during the latent period? CHECK ALL THAT APPLY. a. troponin pulls tropomyosin off the myosin binding sites of actin b. Action potentials move down a motor neuron c. tropomyosin pulls troponin off the myosin binding sites on actin d. Action potentials move down the t-tubules e. calcium binds to troponin f. ACh is released from the motor neuron g. Calcium is released from the sarcoplasmic reticulum h. calcium binds to...
1. When an action potential reaches the T-tubule, it will activate the dihydropyridine receptor at the...
1. When an action potential reaches the T-tubule, it will activate the dihydropyridine receptor at the T-tubule to change conformational shape. Dihydropyridine receptor will trigger ryanodine receptor channel to secrete Ca2+ from the sarcoplasmic reticulum into the cytosol. When action potential is absent, Ca2+ ATPase at the sarcoplasmic reticulum will pump cytosolic Ca2+ into the sarcoplasmic reticulum. Select one: a. True b. False 2. What is TRUE about the myofibril? Select one: a. The thick and thin filaments on the...
7.)In G proteins, which form of the guanyl nucleotide is bound in the unactivated state? a.)...
7.)In G proteins, which form of the guanyl nucleotide is bound in the unactivated state? a.) GTP b.) GDP c.) GMP d.) dGTP e.) None of above 8.)which of the following amino acids can be phophorylated? a.) tyrosine, serine, theronine b.) tyrosine, serine, tryptophan c.) serine, threonine, asparagine d.) histidine, serine, phenylalanine e.) tyrosine, methionine, typrtophan 9.) most signal molecules: a.)easily diffuse through the membrane and bind to a receptor in the cytoplasm b.) bind to membrane receptors and transmit...
1. Which of the following in not directly involved in the production of proteins? a. Golgi...
1. Which of the following in not directly involved in the production of proteins? a. Golgi complex b. Plasma membrane c. Rough endoplasmic reticulum d. Nucleus 2. A new coach tells his team that the reason they get fatigued after three minutes of exercise is because they do not have enough oxygen in their red blood cells. He has no data to support his position. Therefore his advice is? a. Valid since he is an expert working with people b....
QUESTION 14 Given: Net Filtration Pressure = (PC – PIF) – (πC – πIF) IF: capillary...
QUESTION 14 Given: Net Filtration Pressure = (PC – PIF) – (πC – πIF) IF: capillary colloid osmotic pressure = +22 mmHg : interstitial fluid colloid osmotic pressure = +4 mmHg : capillary hydrostatic pressure = +30 mmHg : interstitial fluid hydrostatic pressure = -2 mmHg THEN, the Net Filtration Pressure is _____________ and there is _______________ across the capillary wall. a. -14 mmHg, Net Reabsorption b. 10 mmHg, Net Filtration c. None of the answers given here are correct...
Can you paraphrase the following rationale for me: Male Reproductive System 1. Which of the following...
Can you paraphrase the following rationale for me: Male Reproductive System 1. Which of the following accurately describes spermiogenesis? a. Occurs before puberty b. Involves stem cells, meiosis, and spermatogenesis c. Involves cytodifferentiation of early spermatids d. Occurs in diploid cells e. Results in the formation of primary spermatocytes Rationale: Spermatogenesis, the first part of sperm production involves mainly mitosis and meiosis and is followed by spermiogenesis, the final differentiation process occurring in the haploid male germ cells. Spermatogenesis begins...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT