Question 1

When phagocytes ingest certain bacteria, they are stimulated to secrete a fever-producing substance called _____.

Accepted Answer

The answer of When phagocytes ingest certain bacteria, they are...

Question 2

Identify the true statement about evaporation.

Accepted Answer

The rate of evaporation is inversely related to relative humidity. This means that as relative humidity increases, the rate of evaporation decreases.

Question 3

Conduction is the heat exchange that occurs

Accepted Answer

Conduction involves the transfer of heat between molecules of two materials that are in direct contact with each other.

Question 4

Which hormone increases appetite and decreases energy expenditure?

Accepted Answer

Progesterone is known to increase appetite and decrease energy expenditure, particularly noted in the luteal phase of the menstrual cycle and during pregnancy.

Question 5

How does an increase in the levels of thyroid hormones cause an increase in the body temperature?

Accepted Answer

Thyroid hormones increase the metabolic rate of the body, leading to an increase in the production of heat. This increase in metabolic rate is due to increased oxygen consumption, which in turn leads to an increase in body temperature.

Question 6

A/an _____ is an elevation of the core temperature of a body caused by a resetting of the hypothalamic thermostat.

Accepted Answer

The answer of A/an _____ is an elevation of the...

Question 7

What is the core temperature of the human body?

Accepted Answer

The core temperature of the human body is 37°C. This is the temperature of the internal organs, including the brain, liver, and heart. It is important to maintain this temperature within a narrow range to ensure that the body functions properly. Deviations from this temperature can indicate illness or injury.

Question 8

Shivering increases the rate of heat production in the body.

Accepted Answer

Shivering is involuntary muscle movement in response to feeling cold. This movement generates heat and increases the rate of heat production in the body, which can help to maintain body temperature in cold conditions.

Question 9

Identify an example of heat transfer through convection.

Accepted Answer

Heat is transferred through convection when the heat from the stove causes the molecules in the pot to move faster and rise, creating a convection current that heats the water evenly throughout the pot.

Question 10

The control center that functions as the body's thermostat is a group of neurons in the anterior part of the hypothalamus, called the

Accepted Answer

The preoptic area of the anterior hypothalamus acts as the body's thermostat, regulating temperature by receiving input about the body's temperature and initiating responses to either cool or heat the body as necessary.

Question 11

_____ _____ is a chronic disorder characterized by self-induced weight loss, negative perception of body image, and physiological changes that result from nutritional depletion.

Accepted Answer

The answer of _____ _____ is a chronic disorder characterized...

Question 12

_____ are agents that relieve or reduce fever.

Accepted Answer

The answer of _____ are agents that relieve or reduce...

Question 13

_____ is a disorder characterized by overeating at least twice a week followed by purging via self-induced vomiting, strict dieting or fasting, vigorous exercise, or use of laxatives or diuretics.

Accepted Answer

The answer of _____ is a disorder characterized by overeating...

Question 14

How does vasoconstriction of blood vessels decrease the loss of heat from a body?

Accepted Answer

Vasoconstriction of blood vessels decreases the loss of heat from a body by decreasing the flow of warm blood from the internal organs to the skin. When blood vessels constrict, the diameter of the blood vessel decreases, reducing the amount of blood that can flow through it. This reduces the amount of warm blood that can flow to the skin, reducing the amount of heat lost to the environment.

Question 15

_____ temperature is the temperature near the body surface-in the skin and subcutaneous layer.

Accepted Answer

The answer of _____ temperature is the temperature near the...

Question 16

Accumulation of fat in the abdomen is associated with higher blood cholesterol level and other cardiac risk factors because adipose cells in this area appear to be more metabolically active.

Accepted Answer

Adipose cells in the abdominal area are more metabolically active than those in other areas of the body, leading to a higher risk of developing cardiac risk factors such as high blood cholesterol levels.

Question 17

Which of the following is true of the enzyme lipoprotein lipase?

Accepted Answer

Lipoprotein lipase is responsible for hydrolyzing triglycerides from circulating lipoproteins and facilitating their uptake and storage in adipose tissue. Therefore, it plays a key role in regulating triglyceride storage in adipose tissue.

Question 18

Identify a function of thyrotropin-releasing hormone.

Accepted Answer

Thyrotropin-releasing hormone stimulates the release of thyroid-stimulating hormone from the anterior pituitary gland.

Question 19

In the context of thermoregulation of a human body, what is a consequence of an increase in the core body temperature?

Accepted Answer

An increase in core body temperature stimulates the sweat glands in the skin to produce and release sweat, which cools the body through evaporation.

Question 20

A core body temperature that is too low causes

Accepted Answer

A core body temperature that is too low can cause cardiac arrhythmias. This is because low temperature can disrupt normal electrical impulses in the heart, leading to abnormal heart rhythms.

Quiz 22: Metabolic Adaptations, Energy Balance, and Temperature Regulation