A, B and C start running at the same time and at the same point in the same direction in a circular stadium. A completes a round in 252 seconds, B in 308 seconds and C in 198 seconds. After what time will they meet again at the starting point?

#Question id: 11206

#Part-B Specialized Branches in Biotechnology

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?

#Question id: 11207

#Part-B Specialized Branches in Biotechnology

In multiple sclerosis, the myelin sheaths around the axons of the brain and spinal cord are damaged and demyelination results. How does this disease manifest at the level of the action potential?

 I) Action potentials move in the opposite direction on the axon.

 II) Action potentials move more slowly along the axon.

 III) No action potentials are transmitted.

#Question id: 11208

#Part-B Specialized Branches in Biotechnology

Neurotransmitters are released from axon terminals via ________.

#Question id: 11209

#Part-B Specialized Branches in Biotechnology

Acetylcholine released into the junction between a motor neuron and a skeletal muscle binds to a sodium/potassium channel and opens it. This is an example of ________.

#Question id: 11210

#Part-B Specialized Branches in Biotechnology

An inhibitory postsynaptic potential (IPSP) occurs in a membrane made more permeable to ________.

#Question id: 11212

#Part-B Specialized Branches in Biotechnology

The activity of acetylcholine in a synapse is terminated by its ________.