HUMAN BODY, 11TH EDITION BY GERARD J.
TORTORA , BRYAN H. DERRICKSON
# TEST BANK: INTRODUCTION TO THE HUMAN BODY, 11TH EDITION
## By Gerard J. Tortora & Bryan H. Derrickson
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### CHAPTER 1: AN INTRODUCTION TO THE HUMAN BODY
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**1) The science dealing with body functions is called**
a) physiology
b) cytology
c) anatomy
d) histology
e) biology
**Answer: a**
**Rationale:** Physiology is the science that deals with the functions of the body—how the body parts
work and carry out their life-sustaining activities. Cytology is the study of cells, anatomy is the study of
body structure, histology is the study of tissues, and biology is the study of living organisms in general.
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**2) The level of organization when different multiple types of tissues join together is called the**
a) chemical level
b) cellular level
c) tissue level
d) organ level
e) system level
**Answer: d**
**Rationale:** The organ level of structural organization occurs when different types of tissues join
together to form organs. The chemical level involves atoms and molecules, the cellular level involves
cells, the tissue level involves groups of similar cells, and the system level consists of related organs with
a common function.
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**3) A group of related organs that have a common function is called a/an**
a) organ
b) system
c) tissue
d) group
e) organism
**Answer: b**
,**Rationale:** A system (organ system) is a group of related organs that work together to perform a
common function. An organ is a structure composed of different tissues, a tissue is a group of similar
cells, and an organism is the highest level of organization comprising all body systems.
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**4) The process by which unspecialized cells become specialized cells is called**
a) anabolism
b) catabolism
c) metabolism
d) differentiation
e) homeostasis
**Answer: d**
**Rationale:** Differentiation is the process by which unspecialized cells become specialized in
structure and function. Anabolism and catabolism are components of metabolism, and homeostasis is
the maintenance of stable internal conditions.
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**5) The sum of all chemical processes that occur in the human body is referred to as**
a) anabolism
b) catabolism
c) metabolism
d) differentiation
e) homeostasis
, **Answer: c**
**Rationale:** Metabolism is the sum of all chemical processes that occur in the body, including
catabolism (breakdown of complex molecules) and anabolism (building of complex molecules).
Differentiation is cell specialization, and homeostasis is the maintenance of stable internal conditions.
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**6) All of the following are examples of organs EXCEPT**
a) stomach
b) heart
c) epithelium
d) brain
e) gallbladder
**Answer: c**
**Rationale:** Epithelium is a type of tissue, not an organ. The stomach, heart, brain, and gallbladder
are all organs composed of multiple tissue types. Epithelium is one of the four basic tissue types.
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**7) The maintenance of relatively stable conditions within the body is known as**
a) responsiveness
b) homeostasis
c) differentiation
d) growth
e) all of the choices are correct