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The UAS of the GAL system plays a role in ______ regulation and Gal4 plays a role in ______ regulation.
Cis or trans
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- Purple foxglove is a plant containing chemicals that slow the activity of the Ca2+-Na+ antiport. What will ingestion offoxglove increase or decrease levels of Nat in the ICF?"In the regulation of molecular switches, protein kinases and guanine nucleotide exchange factors (GEFs) always turn proteins on, whereas protein phosphatases and GTPase activating proteins (GAPS) always turn proteins off" is true or false.Diacylglycerol activates which of the following? RTK PKA Adenylyl cyclase Ras PKC
- what type of glucose transport protein is found mainly in neurons and the placenta? SGLUT-1 GLUT-2 GLUT-3 GLUT-4 GLUT-5What is a secondary transporter? Why are they called secondary? What is [3 H]Leu? Explain both 3H and Leu.In a person with diabetes mellitus, what would be causing polyuria? Glucose has saturated the secondary active transporters in the PCT that move glucose into the cells, increasing the concentration gradient between the filtrate and the ISF or Glucose has saturated the secondary active transporters in the PCT that move glucose into the cells, reducing the concentration gradient between the filtrate and the ISF
- Cyclic-AMP stimulates which of the following? a) PKA b) PKC c) Ras d) RTKThe sodium-glucose cotransporter is an example of _____________. The Na/K pump participates in ______ transport. Select one: a. Symport, active b. Antiport, active c. Symport, passive d. Antiport, passiveWhen the _________ of G-protein is bound to ___________, it binds and activates the intracellular protein Adenylyl cyclase. a. alpha subunit ....... GTP b. gamma subunit ....... GTP c. alpha subunit ....... GDP d. gamma subunit ....... GDP
- The Na+/glucose cotransporter in ION-GRADIENT-DRIVEN ACTIVE TRANSPORT, ________moves down its gradient and _______ against its gradient. Na+/K+ Na+/Na+ Na+/glucose glucose/glucoseWhich of the following regarding GPCR's is FALSE? GPCR ligand binding stimulates phosphorylation of the heterotrimeric G protein GPCR's have seven transmembrane domains The alpha subunit of the heterotrimeric G protein is active in its GTP bound state The beta-gamma subunit of the heterotrimeric G protein performs signaling functionsChoose high or low When the ion binding sites pumps are open to the inside of the cell the pump has a high/low affinity to potassium and a high/low affinity for sodium. When the ion binding sites are open on the outside the pump has a high/low affinity to potassium and a high/low affinity to sodium