Unit 1 questions Flashcards
Which of the followingspecialties might focus on studying all of the structures of the ankle and foot?
a. microscopic anatomy
b. muscle anatomy
c. regional anatomy
d. systemic anatomy
Regional anatomy
A scientist wants to study how the body uses foods and fluids during a marathon run. This scientist is
most likely a(n) ________.
a. exercise physiologist
b. microscopic anatomist
c. regional physiologist
d. systemic anatomist
Exercise physiologist
The smallest independently functioning biological unit of an organism is a(n) ________.
a. cell
b. molecule
c. organ
d. tissue
Cell
A collection of similar tissues that performs a specific function is an ________.
a. organ
b. organelle
c. organism
d. organ system
Organ
The body system responsible for structural support and movement is the ________.
a. cardiovascular system
b.endocrine system
c. muscular system
d. skeletal system
skeletal
Metabolism can be defined as the ________.
a. adjustment by an organism to external or internal changes
b. process whereby all unspecialized cells become specialized to perform distinct functions
c. process whereby new cells are formed to replace worn-out cells
d. sum of all chemical reactions in an organism
Sum of all chemical reactions in an organism
Adenosine triphosphate (ATP) is an important molecule because it ________.
a. is the result of catabolism
b. release energy in uncontrolled bursts
c. stores energy for use by body cells
d. All of the above
Stores energy for use by body cells
Cancer cells can be characterized as “generic” cells that perform no specialized body function. Thus cancer cells lack ________.
a. differentiation
b. reproduction
c. responsiveness
d. both reproduction and responsiveness
differentation
Humans have the most urgent need for a continuous supply of ________.
a. food
b. nitrogen
c. oxygen
d. water
oxygen
Which of the following statements about nutrients is true?
a. All classes of nutrients are essential to human survival.
b. Because the body cannot store any micronutrients, they need to be consumed nearly every day.
c. Carbohydrates, lipids, and proteins are micronutrients.
d. Macronutrients are vitamins and minerals.
All classes of nutrients are essential to human survival
C.J. is stuck in their car during a bitterly cold blizzard. Their body responds to the cold by ________.
a. increasing the blood to the hands and feet
b. becoming lethargic to conserve heat
c. breaking down stored energy
d. significantly increasing blood oxygen levels
breaking down stored energy
After you eat lunch, nerve cells in your stomach respond to the distension (the stimulus) resulting from the food. They relay this information to ________.
a. a control center
b. a set point
c. effectors
d. sensors
a control center
Stimulation of the heat-loss center causes ________.
a. blood vessels in the skin to constrict
b. breathing to become slow and shallow
c. sweat glands to increase their output
d. All of the above
sweat glands ti increase their output
Which of the following is an example of a normal physiologic process that uses a positive feedback loop?
a. blood pressure regulation
b. childbirth
c. regulation of fluid balance
d. temperature regulation
childbirth
What is the position of the body when it is in the “normal anatomical position?”
a. The person is prone with upper limbs, including palms, touching sides and lower limbs touching at sides.
b. The person is standing facing the observer, with upper limbs extended out at a ninetydegree angle from the torso and lower limbs in a wide stance with feet pointing laterally
c. The person is supine with upper limbs, including palms, touching sides and lower limbs touching at sides.
d. None of the above
none of the above
