Question

which of these is false about g protein systems IP3 opens calcium channels adenlyate cyclase produces...

which of these is false about g protein systems

IP3 opens calcium channels

adenlyate cyclase produces cAMP

one messenger and receptor can cause a large response

PIP2 activates protein kinase C

DAG is a second messenger

NONE OF THE ABOVE

Science   Anatomy-And-Physiology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer :- PIP2 activates protein kinase C

Explanation :- Phospholipase activate PIP2 and convert it into the IP3 and DAG.

• PIP2--> IP3 + DAG

simultaneously IP3 opens calcium channels and increases cytoplasmic calcium level which combine with protein kinase C and initiate biological response while DAG (diacetyl glycerol )  act as secondary messenger that also activates enzyme called Phosphokinase C  that phosphorylate a bunch of enzymes and cause muscle contraction....Thanks

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
Please answer all parts. A.) GTP-bound G-protein will interact with an effector molecule. Name two effector...
Please answer all parts. A.) GTP-bound G-protein will interact with an effector molecule. Name two effector molecules. What change occurs in the GTP once effector interaction occurs? B.) Phosphorylation of GPCR (by GRK) results in binding sites for what molecule? What happens to the receptor at this point? C.) Trimeric protein reforms in this part (what is the state of the guanine nucleotide (GTP or GDP)? How would a non-hydrolyzable GTP influence this signalling? What about if only GDP was...
1. Which sentence best defines signal transduction in a biochemical context? a. Alteration of cell functions...
1. Which sentence best defines signal transduction in a biochemical context? a. Alteration of cell functions in response to the environment b. Generation of a chemical change in response to information c. Induction of cell death upon nutrient starvation d. Responses to stimuli 2. Which statement is correct? a. G protein-coupled receptors produce second messengers indirectly while receptor enzymes catalyse second messenger generation b. Second messengers stimulate the activity of G protein-coupled receptors. c. Receptor enzymes produce second messengers through...
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...
QUESTION 1 This source of Calcium ions provides 80-90% of the Ca++ needed for cardiac excitation...
QUESTION 1 This source of Calcium ions provides 80-90% of the Ca++ needed for cardiac excitation contraction coupling: a. the Nucleus b. the Extracellular Fluid and the fluid inside T-tubules c. the Mitochondria d. the Sarcoplasmic Reticulum QUESTION 2 During Isovolumetric Contraction, which one of the following statements is FALSE a. The ventricle is in SYSTOLE b. The Left-AV valve is CLOSED c. The Aortic Valve is CLOSED d. The Ventricular Pressure is Increasing e. The Ventricle is in DIASTOLE...
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...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT