The glycolytic pathway oxidizes glucose to two molecules of pyruvate and also produces a net of two molecules of ATP. ATP allosterically inhibits the enzyme, PFK-1, that catalyzes the third step of glycolysis. This is an example of ________.

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#Question id: 11201

#I Life Science/ Life Sciences Group – I-V

Why are action potentials usually conducted in one direction?

TLS Online TPP Program

#Question id: 11202

#I Life Science/ Life Sciences Group – I-V

If you experimentally increase the concentration of K+ inside a cell while maintaining other ion concentrations as they were, what would happen to the cell's membrane potential?

TLS Online TPP Program

#Question id: 11203

#I Life Science/ Life Sciences Group – I-V

Which of the following statements about action potentials is correct?

TLS Online TPP Program

#Question id: 11204

#I Life Science/ Life Sciences Group – I-V

Why do Na+ ions enter the cell when voltage-gated Na+ channels are opened in neurons?

TLS Online TPP Program

#Question id: 11205

#I Life Science/ Life Sciences Group – I-V

What would probably happen if a long neuron had one continuous myelin sheath down the length of the axon with no nodes of Ranvier?

TLS Online TPP Program

#Question id: 11206

#I Life Science/ Life Sciences Group – I-V

Tetrodotoxin blocks voltage-gated sodium channels, and ouabain blocks sodium-potassium pumps. If you added both tetrodotoxin and ouabain to a solution containing neural tissue, what responses would you expect?