BIO 235 MIDTERM 1 FINAL EXAM SCRIPT
2026 QUESTIONS AND COMPLETE
SOLUTIONS 100% VERIFIED
⩥ Which two cells are excitable? Answer: neurons and muscle cells
⩥ What are the 3 types of muscle cells? Answer: Skeletal (voluntary)
Cardiac (involuntary)
Smooth (involuntary)
⩥ Which of the following descriptions INCORRECTLY describes the
tissue type?
A) Muscle tissue is specialized for contraction and generation of force.
B) Epithelial tissue forms glands.
C) Nervous tissue is specialized for transmission of electrical impulses.
D) Connective tissue is specialized for exchange between the internal
and external environments.
E) Epithelial tissue lines the lumen of internal organs. Answer: D)
Connective tissue is specialized for exchange between the internal
,⩥ Negative feedback Answer: When a system's response opposes or
reverses a deviation
⩥ Positive feedback Answer: When a deviation from triggers events that
reinforce the deviation.
⩥ Which is prominent in physiology, especially
homeostasis? Answer: Negative feedback
⩥ Define reflex Answer: - specific
- involuntary
- unpremeditated
- unlearned
- built-in
RESPONSE
⩥ What are the 3 types of chemical messengers? Answer: 1.) Endocrine
2.) Paracrine
3.) Autocrine
⩥ Match!
,1.) Endocrine
2.) Paracrine
3.) Autocrine
----
a.) signal reaches neighboring cells via the ISF
b.) signal affects the cell that synthesized the signal
c.) signal reaches often - distant targets after transport in blood-
hormones Answer: 1.) C 2.) A 3.) B
⩥ The process of maintaining the internal environment in a state
compatible for life is called ________, and it occurs primarily through
________.
A) intrinsic control : homeostasis
B) negative feedback : intrinsic control
C) homeostasis : negative feedback
D) intrinsic control : negative feedback
E) positive feedback : intrinsic control Answer: C) homeostasis :
negative feedback
⩥ The ________ determines the extent of the error signal in a feedback
loop, in order to initiate the appropriate response.
, a) sensor
b) integrator
c) effector
d) set point
e) regulated variable Answer: b) integrator
⩥ Tissue type that functions in the transport of specific molecules from
one body compartment to another.
a) muscle tissue
b) epithelial tissue
c) connective tissue
d) nervous tissue
e) reticular tissue Answer: b) epithelial tissue
⩥ What separates the internal environment of the body from the external
environment?
a) skin
b) walls of blood vessels
c) membranes of blood cells
2026 QUESTIONS AND COMPLETE
SOLUTIONS 100% VERIFIED
⩥ Which two cells are excitable? Answer: neurons and muscle cells
⩥ What are the 3 types of muscle cells? Answer: Skeletal (voluntary)
Cardiac (involuntary)
Smooth (involuntary)
⩥ Which of the following descriptions INCORRECTLY describes the
tissue type?
A) Muscle tissue is specialized for contraction and generation of force.
B) Epithelial tissue forms glands.
C) Nervous tissue is specialized for transmission of electrical impulses.
D) Connective tissue is specialized for exchange between the internal
and external environments.
E) Epithelial tissue lines the lumen of internal organs. Answer: D)
Connective tissue is specialized for exchange between the internal
,⩥ Negative feedback Answer: When a system's response opposes or
reverses a deviation
⩥ Positive feedback Answer: When a deviation from triggers events that
reinforce the deviation.
⩥ Which is prominent in physiology, especially
homeostasis? Answer: Negative feedback
⩥ Define reflex Answer: - specific
- involuntary
- unpremeditated
- unlearned
- built-in
RESPONSE
⩥ What are the 3 types of chemical messengers? Answer: 1.) Endocrine
2.) Paracrine
3.) Autocrine
⩥ Match!
,1.) Endocrine
2.) Paracrine
3.) Autocrine
----
a.) signal reaches neighboring cells via the ISF
b.) signal affects the cell that synthesized the signal
c.) signal reaches often - distant targets after transport in blood-
hormones Answer: 1.) C 2.) A 3.) B
⩥ The process of maintaining the internal environment in a state
compatible for life is called ________, and it occurs primarily through
________.
A) intrinsic control : homeostasis
B) negative feedback : intrinsic control
C) homeostasis : negative feedback
D) intrinsic control : negative feedback
E) positive feedback : intrinsic control Answer: C) homeostasis :
negative feedback
⩥ The ________ determines the extent of the error signal in a feedback
loop, in order to initiate the appropriate response.
, a) sensor
b) integrator
c) effector
d) set point
e) regulated variable Answer: b) integrator
⩥ Tissue type that functions in the transport of specific molecules from
one body compartment to another.
a) muscle tissue
b) epithelial tissue
c) connective tissue
d) nervous tissue
e) reticular tissue Answer: b) epithelial tissue
⩥ What separates the internal environment of the body from the external
environment?
a) skin
b) walls of blood vessels
c) membranes of blood cells
