Neurotransmitters affect postsynaptic cells by _____. I) initiating signal transduction pathways in the cells II) causing molecular changes in the cells III) affecting ion-channel proteins IV) altering the permeability of the cells

Which intermediate compound(s) in the citric acid cycle is/are often used for biosynthetic pathways as well as carbon catabolism?

A) ?-ketoglutarate B) oxaloacetate C) succinyl-CoA D) ?-ketoglutarate, oxaloacetate, and succinyl-CoA

The temporal lobe of the cerebral cortex ____

a. governs speech production b. is the vision center c. is associated with memory storage d. is responsible for hearing and smell e. is the primary motor area

Barotolerant

What will be an ideal response?

Nerve impulses travel along neurons by the opening of channels that allow sodium ions to flow inward, followed by an outward flow of potassium ions

In order to ensure that the impulse may be produced at any time, sodium is actively transported out of the cell and potassium is transported into the cell by the sodium/potassium pump. Which of the following types of work is performed by the sodium/potassium pump? A) mechanical B) electrical C) concentration D) synthetic E) bioluminescent