Pka signaling - Study guides, Class notes & Summaries

Molecular Drug Targets - ANSWER-Receptors-45% Enzymes-28% Hormones-11% Unknown-7% Ion Channels-5% DNA-4% Channel-Linked (Ionotropic) Receptors - ANSWER-Produce cellular effects in milliseconds Nicotinic ACh receptor GPCRs - ANSWER-Effects happen in seconds Muscarinic ACh receptor Kinase-linked receptors - ANSWER-Effects happen in minutes Insulin receptor Receptors linked to gene transcription - ANSWER-Effects happen in hours Estrogen receptor Heterotrimeric G proteins - A...

what kind of receptors recognize hydrophobic signals such as steroid hormones? A. cell surface receptors B. intracellular receptors C. any of the above Correct Answer-b which type of signaling uses secreted signals that function as local mediators? A. endocrine signaling B. paracrine signaling C. contact dependent signaling D. neuronal signaling Correct Answer-paracrine signaling in a signal transduction pathway controlled by G protein coupled receptors, PKA is located A. upstr...

Biochemistry and Metabolism Exam 1 Questions with Complete Solutions. What are proteins made from? -Answer- amino acids What are some functions of proteins? (5) -Answer- structural, enzymatic, transport, defense, contractile Which isomer of carbohydrates is used in animals? -Answer- D What are DNA and RNA made of? -Answer- nucleic acids All lipids are formed from... -Answer- acetyl Co-A Complex lipids -Answer- phospholipids and glycolipids Simple lipids -Answer- triglycerides functions ...

Biochemistry and Metabolism Exam 1 Questions with Complete Solutions. What are proteins made from? -Answer- amino acids What are some functions of proteins? (5) -Answer- structural, enzymatic, transport, defense, contractile Which isomer of carbohydrates is used in animals? -Answer- D What are DNA and RNA made of? -Answer- nucleic acids All lipids are formed from... -Answer- acetyl Co-A Complex lipids -Answer- phospholipids and glycolipids Simple lipids -Answer- triglycerides functions ...

Describe endocrine, paracrine, and autocrine signaling. correct answers Endocrine: An endocrine cell releases a hormone into the blood stream to target a receptor on the target cell. Paracrine: A signaling cell releases a local mediator to target cells (neighboring cells). Autocrine: A cell releases a chemical signal to target itself. How does a hormone that is released generally throughout the body end up having different effects on (or no effects on) different cells? correct answers H...

Biochemistry Test 1 Questions and Answers Graded A+ What is the role of allosteric sites in enzyme regulation? Allosteric sites are regions where molecules can bind and influence enzyme activity by changing its shape. How do competitive inhibitors affect enzyme function? Competitive inhibitors compete with substrates for binding at the active site, reducing enzyme activity. What determines the tertiary structure of a protein? The tertiary structure is determined by interactio...

MTM-Final Exam Basic Science Ionized forms like A- and BH+ are ________ and ______ diffusible across membrane water; poorly generic equation used to calculate week acidic and basic drugs 10 ^(pka-pH) = protonated/unprotonated equation to calculate weak acidic drugs 10^(pka-pH) = [nonionized(HA)]/[ionized(A-)] equation to calculate weak basic drugs 10^(pka-pH) = [ionized (BH+)]/[nonionized(B0] if the pka and pH difference is 1 or -1: ionization is 90% or 10% if the pka and pH differe...

Biochemistry and Metabolism Exam 1 Questions with Complete Solutions. What are proteins made from? -Answer- amino acids What are some functions of proteins? (5) -Answer- structural, enzymatic, transport, defense, contractile Which isomer of carbohydrates is used in animals? -Answer- D What are DNA and RNA made of? -Answer- nucleic acids All lipids are formed from... -Answer- acetyl Co-A Complex lipids -Answer- phospholipids and glycolipids Simple lipids -Answer- triglycerides functions ...

What is the difference between the net number of ATP generated by glycolysis from glucose produced by the glycogen phosphorylase enzyme reaction as compared to glucose obtained from the diet? correct answers One less net ATP is generated in glycolysis from dietary glucose as compared to glucose from glycogen. Part 1: Glycogen metabolism is regulated by both allosteric control and covalent modification. Circle the best underlined words describing glycogen regulation and record the number. corr...

Insulin increases glucose transport into skeletal muscle cells by: - Increasing translocation of GLUT- 4-containing vesicles to the plasma membrane An inhibitor of the serine kinase GSK-3beta will have all of the following effects on insulin-resistant skeletal muscle except: - Cause decreased serine phosphorylation of IRS-1 in the presence of insulin. - Cause increased insulin-stimulated glucose transport. - Cause decreased insulin-stimulated tyrosine phosphorylation. - Cause reduced seri...