Test Bank for Biology 2e by OpenStax by Mary Ann
Clark Texas Wesleyan University (Author), Jung Choi
Georgia Polytechnic University (Author), Matthew
Douglas Grand Rapids Community College
(Author)
1. Which characteristic is shared by all organisms?
A. Ability to move from place to place
B. Ability to reproduce
C. Presence of chloroplasts
D. Multicellularity
,Answer: B. Ability to reproduce
Reproduction is a fundamental characteristic of life, although
individual organisms may sometimes be sterile.
2. Which level of biological organization is immediately above the
cellular level?
A. Molecular
B. Tissue
C. Organ
D. Organism
Answer: B. Tissue
Tissues consist of groups of similar cells working together to perform
a specific function.
3. Which statement best describes homeostasis?
A. Growth of an organism
B. Maintenance of relatively stable internal conditions
C. Production of offspring
D. Movement toward a stimulus
Answer: B. Maintenance of relatively stable internal conditions
Homeostasis allows organisms to maintain internal conditions within
suitable ranges despite external changes.
4. Which process converts light energy into chemical energy in
plants?
A. Cellular respiration
B. Fermentation
C. Photosynthesis
D. Diffusion
,Answer: C. Photosynthesis
Photosynthesis captures light energy and stores it in chemical bonds,
primarily in carbohydrates.
5. Which molecule is considered the primary energy currency of
cells?
A. DNA
B. ATP
C. RNA
D. Cellulose
Answer: B. ATP
ATP provides readily accessible chemical energy for many cellular
processes.
6. A hypothesis is best described as:
A. A proven scientific law
B. A testable explanation for an observation
C. A personal opinion
D. A collection of experimental data
Answer: B. A testable explanation for an observation
A scientific hypothesis must be testable and capable of being
supported or rejected through evidence.
7. In an experiment, the variable deliberately changed by the
researcher is the:
A. Dependent variable
B. Control variable
C. Independent variable
D. Response variable
, Answer: C. Independent variable
The independent variable is intentionally manipulated to determine
its effect on another variable.
8. Which group contains organisms that lack membrane-bound
nuclei?
A. Eukaryotes
B. Plants
C. Animals
D. Prokaryotes
Answer: D. Prokaryotes
Prokaryotic cells lack a membrane-bound nucleus and include
bacteria and archaea.
9. Which domain contains organisms such as humans and fungi?
A. Bacteria
B. Archaea
C. Eukarya
D. Prokarya
Answer: C. Eukarya
Humans, fungi, plants, protists, and other organisms with eukaryotic
cells belong to Eukarya.
10. What is the smallest unit capable of carrying out all functions of
life?
A. Atom
B. Molecule
C. Cell
D. Tissue
Clark Texas Wesleyan University (Author), Jung Choi
Georgia Polytechnic University (Author), Matthew
Douglas Grand Rapids Community College
(Author)
1. Which characteristic is shared by all organisms?
A. Ability to move from place to place
B. Ability to reproduce
C. Presence of chloroplasts
D. Multicellularity
,Answer: B. Ability to reproduce
Reproduction is a fundamental characteristic of life, although
individual organisms may sometimes be sterile.
2. Which level of biological organization is immediately above the
cellular level?
A. Molecular
B. Tissue
C. Organ
D. Organism
Answer: B. Tissue
Tissues consist of groups of similar cells working together to perform
a specific function.
3. Which statement best describes homeostasis?
A. Growth of an organism
B. Maintenance of relatively stable internal conditions
C. Production of offspring
D. Movement toward a stimulus
Answer: B. Maintenance of relatively stable internal conditions
Homeostasis allows organisms to maintain internal conditions within
suitable ranges despite external changes.
4. Which process converts light energy into chemical energy in
plants?
A. Cellular respiration
B. Fermentation
C. Photosynthesis
D. Diffusion
,Answer: C. Photosynthesis
Photosynthesis captures light energy and stores it in chemical bonds,
primarily in carbohydrates.
5. Which molecule is considered the primary energy currency of
cells?
A. DNA
B. ATP
C. RNA
D. Cellulose
Answer: B. ATP
ATP provides readily accessible chemical energy for many cellular
processes.
6. A hypothesis is best described as:
A. A proven scientific law
B. A testable explanation for an observation
C. A personal opinion
D. A collection of experimental data
Answer: B. A testable explanation for an observation
A scientific hypothesis must be testable and capable of being
supported or rejected through evidence.
7. In an experiment, the variable deliberately changed by the
researcher is the:
A. Dependent variable
B. Control variable
C. Independent variable
D. Response variable
, Answer: C. Independent variable
The independent variable is intentionally manipulated to determine
its effect on another variable.
8. Which group contains organisms that lack membrane-bound
nuclei?
A. Eukaryotes
B. Plants
C. Animals
D. Prokaryotes
Answer: D. Prokaryotes
Prokaryotic cells lack a membrane-bound nucleus and include
bacteria and archaea.
9. Which domain contains organisms such as humans and fungi?
A. Bacteria
B. Archaea
C. Eukarya
D. Prokarya
Answer: C. Eukarya
Humans, fungi, plants, protists, and other organisms with eukaryotic
cells belong to Eukarya.
10. What is the smallest unit capable of carrying out all functions of
life?
A. Atom
B. Molecule
C. Cell
D. Tissue
