Comprehensive 2026/2027- Test Bank BIOL 189.docx Page 3 of 16 Test Bank BIOL 189.docx - Q&A 2026/2027
Biology 189 Exam 1 – Comprehensive Study
Guide, Practice Questions, and Answers for
Arizona College Biology 2025/2026
*Chapter 1*
Summarize the five characteristics of life
Answer:
1. Organization: atoms make up molecules, which make up cells, which make up tissues, and so
on.
2. energy use: a kitten uses the energy from its mothers milk to fuel its own groth
3. maintenance of internal consistency (homeostasis): your kidneys regulate your body's water
balance by adjusting the concentration of your urine
4. Reproduction, growth, and development: an acorn germinates, developed into an oak seedling,
and, at maturity, reproduces sexually to produce its own acorns
5. Evolution: increasing numbers of bacteria survive treatment with antibiotic drugs.
all of the following are characteristics of life EXCEPT:
a. evolution
b. reproduction
c. homeostasis
d. multicellularity
Answer:
d. multicellularity
the concentration of salts in blood remains relatively steady, regardless of a person's diet. This
situation best illustrates:
a. homeostasis
b. life organizational hierarchy
c. autotrophy
d. evolution
Answer:
a. homeostasis
illustrate life's organizational hierarchy - Answer: - atom
- molecule
- organelle
- cell
exam prep for Test Bank BIOL 189.docx Test
. Includes
Bank BIOL
all chapter
189 questions with answers, perfect for exam preparation and study.
, Comprehensive 2026/2027- Test Bank BIOL 189.docx Page 4 of 16 Test Bank BIOL 189.docx - Q&A 2026/2027
- tissue
- organ
- organ system
- organism
- population
- community
- ecosystem
- biosphere
atom
Answer:
smallest chemical unit of a pure substance
molecule - Answer: A group of atoms bonded together
organelle - Answer: a membrane bound structure that has a specific function within a cell
cell - Answer: fundamental unit of life, multicellular or unicellular
tissue - Answer: collection of specialized cells that function in a coordinated fashion
organ - Answer: structure consisting of tissues organized to interact and carry out specific
functions
organ system - Answer: organs connected physically or chemically that function together
organism - Answer: An individual living thing
Population - Answer: a group of the same species of organisms living in the same place and time
community - Answer: all populations that occupy the same region
ecosystem - Answer: living and nonliving things in an area
biosphere - Answer: the global ecosystem, the parts of the planet and its atmosphere where life is
possible
which of the following is smaller than an organelle?
a. an organ
b. a molecule
c. a cell
d. a tissue - Answer: b. a molecule
Autotroph vs Heterotroph - Answer: Autotrophs are organisms that can produce their own food
from the substances available in their surroundings using light (photosynthesis) or chemical
exam prep for Test Bank BIOL 189.docx Test
. Includes
Bank BIOL
all chapter
189 questions with answers, perfect for exam preparation and study.
Biology 189 Exam 1 – Comprehensive Study
Guide, Practice Questions, and Answers for
Arizona College Biology 2025/2026
*Chapter 1*
Summarize the five characteristics of life
Answer:
1. Organization: atoms make up molecules, which make up cells, which make up tissues, and so
on.
2. energy use: a kitten uses the energy from its mothers milk to fuel its own groth
3. maintenance of internal consistency (homeostasis): your kidneys regulate your body's water
balance by adjusting the concentration of your urine
4. Reproduction, growth, and development: an acorn germinates, developed into an oak seedling,
and, at maturity, reproduces sexually to produce its own acorns
5. Evolution: increasing numbers of bacteria survive treatment with antibiotic drugs.
all of the following are characteristics of life EXCEPT:
a. evolution
b. reproduction
c. homeostasis
d. multicellularity
Answer:
d. multicellularity
the concentration of salts in blood remains relatively steady, regardless of a person's diet. This
situation best illustrates:
a. homeostasis
b. life organizational hierarchy
c. autotrophy
d. evolution
Answer:
a. homeostasis
illustrate life's organizational hierarchy - Answer: - atom
- molecule
- organelle
- cell
exam prep for Test Bank BIOL 189.docx Test
. Includes
Bank BIOL
all chapter
189 questions with answers, perfect for exam preparation and study.
, Comprehensive 2026/2027- Test Bank BIOL 189.docx Page 4 of 16 Test Bank BIOL 189.docx - Q&A 2026/2027
- tissue
- organ
- organ system
- organism
- population
- community
- ecosystem
- biosphere
atom
Answer:
smallest chemical unit of a pure substance
molecule - Answer: A group of atoms bonded together
organelle - Answer: a membrane bound structure that has a specific function within a cell
cell - Answer: fundamental unit of life, multicellular or unicellular
tissue - Answer: collection of specialized cells that function in a coordinated fashion
organ - Answer: structure consisting of tissues organized to interact and carry out specific
functions
organ system - Answer: organs connected physically or chemically that function together
organism - Answer: An individual living thing
Population - Answer: a group of the same species of organisms living in the same place and time
community - Answer: all populations that occupy the same region
ecosystem - Answer: living and nonliving things in an area
biosphere - Answer: the global ecosystem, the parts of the planet and its atmosphere where life is
possible
which of the following is smaller than an organelle?
a. an organ
b. a molecule
c. a cell
d. a tissue - Answer: b. a molecule
Autotroph vs Heterotroph - Answer: Autotrophs are organisms that can produce their own food
from the substances available in their surroundings using light (photosynthesis) or chemical
exam prep for Test Bank BIOL 189.docx Test
. Includes
Bank BIOL
all chapter
189 questions with answers, perfect for exam preparation and study.
