Biopsych Chapter 9

Which items incorrectly paired?

Bulimia nervosa; significant weight loss region

involves periodic binge eating followed by or taking laxatives to avoid weight gain.

Bulimia vomiting

Long-term energy storage is accomplished by storage of fat in tissue.

adipose

38. The hormone acts to conserve sodium by acting on the

aldosterone kidneys.

The hormone generated in the kidney via a cascade of enzymatic actions in response to hypovolemia.

angiotensin Il

Which pancreatic hormone promotes the conversation of glucose to glycogen?

Insulin.

Which statement about leptin is false?

It is believed to exert short-term control over appetite.

Which event will trigger osmotic thirst?

? A salty meal

Leptin inhibits the secretion of neurons, which works in opposition to POMC neurons.

NPY

Angiotensin II acts on the to provoke the release of

Adrenals; aldosterone

Which hormone causes blood vessels to constrict?

Angiotensin II

Which statement correctly describes osmotic pressure?

The tendency of a solvent to move across a membrane in order to equalize the concentration of solute on both sides of the membrane

Which molecule is known as antidiuretic hormone?

Vasopressin

Which hormone monitors the body's longer-term energy reserves in the form of fat?

Leptin

Neuropeptide Y (NPY) neurons and pro- opiomelanocortin (POMC) neurons have opposing effects on and

appetite metabolism.

The stimuli associated with food, such as its smell, provoke the release of insulin during the phase.

cephalic

Sweet urine is symptomatic of:

diabetes mellitus.

Injecting PYY3-36 into rats causes them to:

eat less.

One of the selective advantages of endothermy appears to be: high

increased capacity to sustain a high level of muscular activity.

Physiological saline is also sometimes described as:

isotonic.

The response to increase in the salt concentration of the extracellular solution is called thirst.

omsotic

Thermoregulation is considered a negative feedback system because:

restoring the desired temperature turns off the response.

The brain responds to hypovolemia by triggering both thirst and hunger for

salt

When a cell comes into contact with pure water it:.

swells.

great When an animal loses a lot of blood, there is a tendency of baroreceptors to signal:

thirst.

A drop in extracellular volume is detected by specialized:

baroreceptors

Two physiological responses to hypovolemia are of blood vessels and the secretion of by the posterior pituitary.

constriction vasopressin

The body fluid compartments change withupon severe water loss:

decreased blood pressure and decreased plasma volume

Animals whose body temperature mainly by internal bodily processes are called

endotherms

: Amino acids that are not manufactured by our bodies are classified as

essential.

In mammals, the saltiness of the environment

extracellular; is similar across species

Endotherms may show a significant departure from their average body temperatures as a consequence of:

fever.

People suffering from bulimia nervosa

get caught in binge- purge eating cycles.

The body stores glucose for later use after first converting it to a more complex form called:

glycogen.

28. One of the reasons we know that insulin is not the only cue for satiety is that:

high doses of insulin initiate eating

and have opposing effects on "hunger" neurons.

hypovolemia. Ghrelin PYY 3-36

A(n) solution is a solution with the same concentration as physiological saline.

isotonic

Under conditions of prolonged food deprivation, fat can be converted into glucose and a secondary form of fuel, called

ketones

People with a BMI of 25-30 are in the body weight level of:

overweight.

In rats, lesions of the ventromedial hypothalamus (VMH) lead to all of the following except:

self- maintenance of normal weight

Research on the effects of leptin indicates that activation of POMC neurons in the hypothalamus:

suppresses hunger.

The type of diabetes called is characterized by a cessation of insulin production early in life.

type I diabetes

One of the reasons we know that glucose cannot be the only cue for satiety is that

untreated diabetics are hungry

Lesions to which brain region would impair physiological responses to temperature in endotherms?

Preoptic area

Which intervention or research findings has not been an effective weight loss strategy?

? Drugs that block the visual appeal of food

Which example demonstrates ectothermic behavior?

A turtle basking on a sunny log

volume Which method is NOT a current strategy for treating obesity?:

Drugs that increase digestive acid levels in the stomach High sirsulating

refers to the active process of maintaining a relatively stable internal environment.

Homeostasis

Which pancreatic hormone promotes the conversion of glycogen to glucose? glucose into glycogen is done by

Glucagon, insulin

High circulating levels of leptin activate the satiety neurons and simultaneously inhibit the_hunger neurons:

POMC;NPY

: Which statement about anorexia nervosa is true?

People with anorexia think about food a great deal