BIOS 251 Week 4 Anatomy and Physiology I
with Lab Midterm Exam| Actual Questions
and Correct Answers
Question 1
Structures of the body that can function without a direct neural connection are referred to as:
A. Autonomic organs
B. Involuntary muscles
C. Endocrine glands
D. Sensory receptors
Correct Answer: C. Endocrine glands
Explanation: Endocrine glands (e.g., thyroid, adrenal) can function without a direct neural
connection by secreting hormones into the bloodstream, which act on distant target cells, unlike
organs requiring direct neural innervation.
Question 2
Which of the following are life processes in humans? Select all that apply:
A. Metabolism
B. Responsiveness
C. Movement
D. Reproduction
E. Growth
F. Photosynthesis
Correct Answer: A, B, C, D, E
Explanation: Life processes in humans include metabolism (chemical reactions for energy),
responsiveness (reacting to stimuli), movement (locomotion or internal motion), reproduction
, (producing offspring), and growth (increasing size or cell number). Photosynthesis is not a
human process, as it occurs in plants.
Question 3
______ is the condition of equilibrium in the body’s internal environment.
A. Homeostasis
B. Metabolism
C. Adaptation
D. Osmosis
Correct Answer: A. Homeostasis
Explanation: Homeostasis is the maintenance of a stable internal environment (e.g.,
temperature, pH, glucose levels) despite external changes, ensuring optimal physiological
function.
Question 4
This directional term means on the opposite side of the body from another structure:
A. Contralateral
B. Ipsilateral
C. Bilateral
D. Proximal
Correct Answer: A. Contralateral
Explanation: Contralateral refers to structures on the opposite side of the body (e.g., the right
arm is contralateral to the left leg), while ipsilateral refers to the same side.
Question 5
Changing the number of neutrons in an atom will change the atom’s:
A. Isotope
B. Atomic number
C. Charge
with Lab Midterm Exam| Actual Questions
and Correct Answers
Question 1
Structures of the body that can function without a direct neural connection are referred to as:
A. Autonomic organs
B. Involuntary muscles
C. Endocrine glands
D. Sensory receptors
Correct Answer: C. Endocrine glands
Explanation: Endocrine glands (e.g., thyroid, adrenal) can function without a direct neural
connection by secreting hormones into the bloodstream, which act on distant target cells, unlike
organs requiring direct neural innervation.
Question 2
Which of the following are life processes in humans? Select all that apply:
A. Metabolism
B. Responsiveness
C. Movement
D. Reproduction
E. Growth
F. Photosynthesis
Correct Answer: A, B, C, D, E
Explanation: Life processes in humans include metabolism (chemical reactions for energy),
responsiveness (reacting to stimuli), movement (locomotion or internal motion), reproduction
, (producing offspring), and growth (increasing size or cell number). Photosynthesis is not a
human process, as it occurs in plants.
Question 3
______ is the condition of equilibrium in the body’s internal environment.
A. Homeostasis
B. Metabolism
C. Adaptation
D. Osmosis
Correct Answer: A. Homeostasis
Explanation: Homeostasis is the maintenance of a stable internal environment (e.g.,
temperature, pH, glucose levels) despite external changes, ensuring optimal physiological
function.
Question 4
This directional term means on the opposite side of the body from another structure:
A. Contralateral
B. Ipsilateral
C. Bilateral
D. Proximal
Correct Answer: A. Contralateral
Explanation: Contralateral refers to structures on the opposite side of the body (e.g., the right
arm is contralateral to the left leg), while ipsilateral refers to the same side.
Question 5
Changing the number of neutrons in an atom will change the atom’s:
A. Isotope
B. Atomic number
C. Charge
