Quiz 1 Form B

Front 1

1. Which of the following would be a physiological explanation for why birds sing?

Back 1

Testosterone causes the growth of certain brain areas which control singing in certain birds

Front 2

Someone who investigates how the functioning of the brain and other organs influences behavior is called a:

Back 2

behavioral neuroscientist

Front 3

A comparative psychologist:

Back 3

considers the evolutionary histories of different species and their behaviors

Front 4

Which of the following specialists would be MOST interested in changes in heart rate when students are taking an exam?

Back 4

psychophysiologist

Front 5

Suppose "A" is a dominant gene for the ability to curl the tongue lengthwise, and "a" is a recessive gene for inability to do so. Which of the following couples can be certain that all their children will be able to curl their tongue lengthwise?

Back 5

father aa, mother AA

Front 6

Almost all humans have 23 pairs of which of the following?

Back 6

chromosomes

Front 7

In humans, which chromosome(s) contain(s) few genes?

Back 7

Y chromosome

Front 8

Protein channels, allow ____ to cross the cell membrane

Back 8

small charged molecules

Front 9

The insulating material which covers many vertebrate axons is called the:

Back 9

myelin sheath

Front 10

Radial glia:

Back 10

guide the migration of neurons during embryonic development

Front 11

In the brain, an arrangement of endothelial cells:

Back 11

does not allow most molecules to pass because the cells are so tightly packed

Front 12

____ is the main source of nutrition for vertebrate neurons.

Back 12

glucose

Front 13

The neuron will produce an action potential only if the depolarization exceeds what level?

Back 13

the threshold of excitation

Front 14

What are the nodes of Ranvier?

Back 14

gaps in the myelin sheath

Front 15

A local neuron:

Back 15

is a small neuron with no axon or a very short one

Front 16

Avoiding foods with lecithin, such as eggs and peanuts, would affect which neurotransmitter level the most?

Back 16

acetylcholine

Front 17

If you eat a food containing tryptophan, what can you consume with it to increase its entry to the brain?

Back 17

carbohydrates

Front 18

In general, a single neuron releases ____ neurotransmitter(s), and can respond to ____ neurotransmitter(s).

Back 18

several; many

Front 19

Which of the following actions is most likely to be dependent on ionotropic effects?

Back 19

rapid muscle contraction

Front 20

Why do cocaine and amphetamine produce similar effects?

Back 20

Both increase the presence of dopamine in the synapses