WSU BIOLOGY 106 EXAM 1 ACTUAL EXAM 2 LATEST
VERSIONS (VERSION A & B)2025-2026 ACTUAL EXAM
150 QUESTIONS AND CORRECT ANSWERS |ALREADY
GRADED A+
Overview
The WSU Biology 106 Exam 1 Study Guide (2025–2026 Edition) provides an in-depth,
accurate, and up-to-date review of core introductory biology concepts. This resource includes
two complete practice versions (Version A & Version B), each designed to reflect the
structure, difficulty, and style of the official course assessments at Washington State University.
With 150 high-quality practice questions, verified answers, and clear rationales, this guide
helps students strengthen conceptual understanding and build the confidence needed to excel in
Biology 106.
Key Features
✅ 150 Biology 106 Exam-Style Questions (Versions A & B)
✅ Verified Correct Answers Included
✅ Detailed Rationales for Every Question
✅ Modeled After WSU Biology 106 Exam 1 Format & Content Emphasis
✅ Covers Cells, Genetics, Evolution, Ecology, Biochemistry & More
✅ Two Unique Versions for a Complete Practice Experience
✅ A+ Rated for Accuracy, Relevance & Educational Quality
Purpose
• To support WSU Biology 106 students in preparing effectively for Exam 1
• To reinforce foundational biological concepts through realistic practice
• To improve critical thinking, application skills, and test performance
• To provide a comprehensive and reliable study resource aligned with 2025–2026 course
expectations
Recommended For
,• WSU students enrolled in Biology 106
• Learners seeking extra practice before major biology exams
• Tutors, instructors, and study groups developing review materials
• Anyone wanting a structured, high-yield biology study guide
Your Complete Biology 106 Study Resource
With two full practice versions, 150 exam-style questions, correct answers, and thorough
rationales, the WSU Biology 106 Exam 1 Study Guide (2025–2026 Edition) offers a trusted,
high-quality tool for mastering introductory biology and achieving top academic results.
What types of meristems do you find in a plant body and how do they differ in function? -
ANSWERThe meristems found in a plant body are apical meristems and lateral meristems. Apical
meristems provides additional cells that allow growth in length, this is called primary growth and it is
found in tips of roots, shoots, and auxiliary buds. Lateral meristems add thickness to woody plants
through a process called secondary growth.
The primary growth of a root is mainly accomplished by what process and in which zone? - ANSWER-
The primary growth of a root is mainly accomplished by cell division and elongation in the zone of
elongation.
What is a basic difference in the organization of vascular tissue in eudicots when you compare root and
shoot tissues? - ANSWER-In eudicots, root vascular tissue is always in the center, if it is anything else it
is a shoot
In a leaf, what cell type is mainly necessary for CO2 and water vapor exchange with the atmosphere? a.
bark
b. mesophyll
c. trichome
d. epidermis
e. stomata - ANSWER-e. stomata
,c.
If you look at Figure 28.19 (primary and secondary growth of a stem), what two meristems are required
for secondary growth, and where are they located in the shoot? - ANSWER-The vascular cambium
and cork cambium are required for secondary growth. The vascular cambium is a thin layer located
between the secondary xylem and and the secondary phloem. The cork cambium is located toward the
outside helping create the bark.
What does a woody tree trunk that is many years old mainly consist of? - ANSWER-A woody tree
trunk that is many years old mainly consist of heartwood and sapwood.
What part of a tree trunk contains the majority of the living cells? - ANSWER-The sapwood (or
secondary phloem) contains the majority of living cells in a tree trunk.
What are the two key tissues that allow plants to transport water or organic nutrients, respectively, over
long distances?
a. mesophyll and dermal tissue
b. xylem and phloem
c. trichomes and stomata
d. sclerenchyma and phloem
e. plants lack in general such tissues - ANSWER-b. xylem and phloem
Gas exchange
(a) In the root, plants need to take up more CO2 or O2? - ANSWER-In the root, plants need to
take up more O2
Gas exchange
(b) Is the need for CO2 and O2 in leaves the same when compared to roots? - ANSWER-no, plants
need CO2
, Gas exchange
(c) Why do you think there is/is not a difference in gas exchange when you compare roots with
leaves? - ANSWER-CO2 is needed for leaves and the shoot system to take in so that O2 is released in
photosynthesis whereas roots just use the available nutrients in the soil and take in O2 while discharging
CO2
If you look at the apoplast and the symplast, which of the following statements are true?
a. The apoplast is always smaller than the symplast.
b. The apoplast is the continuum of cytosol connected by plasmodesmata.
The symplast does not allow the exchange of material with the apoplast.
d. Plasmodesmata connect the cytosol from neighboring cells to form the symplast, but they do not
connect to the apoplast.
e. In the symplastic route, water and solutes move along the continuum of cell walls and extracellular
spaces - ANSWER-d. Plasmodesmata connect the cytosol from neighboring cells to form the
symplast, but they do not connect to the apoplast.
If you add sugar to water does the water potential increase or decrease? a.
increase
b. decrease
c. no change at all - ANSWER-b. decrease
How is osmosis defined? - ANSWER-the diffusion of free water across a membrane
What is a protoplast?
a. It defines stomata cells that pro-actively loose water
b. This relates to the plastic elongation growth in the root differentiation zone
c. It is the long-distance transport of organic material in the phloem
d. This is the entire cell, excluding the cell wall.
VERSIONS (VERSION A & B)2025-2026 ACTUAL EXAM
150 QUESTIONS AND CORRECT ANSWERS |ALREADY
GRADED A+
Overview
The WSU Biology 106 Exam 1 Study Guide (2025–2026 Edition) provides an in-depth,
accurate, and up-to-date review of core introductory biology concepts. This resource includes
two complete practice versions (Version A & Version B), each designed to reflect the
structure, difficulty, and style of the official course assessments at Washington State University.
With 150 high-quality practice questions, verified answers, and clear rationales, this guide
helps students strengthen conceptual understanding and build the confidence needed to excel in
Biology 106.
Key Features
✅ 150 Biology 106 Exam-Style Questions (Versions A & B)
✅ Verified Correct Answers Included
✅ Detailed Rationales for Every Question
✅ Modeled After WSU Biology 106 Exam 1 Format & Content Emphasis
✅ Covers Cells, Genetics, Evolution, Ecology, Biochemistry & More
✅ Two Unique Versions for a Complete Practice Experience
✅ A+ Rated for Accuracy, Relevance & Educational Quality
Purpose
• To support WSU Biology 106 students in preparing effectively for Exam 1
• To reinforce foundational biological concepts through realistic practice
• To improve critical thinking, application skills, and test performance
• To provide a comprehensive and reliable study resource aligned with 2025–2026 course
expectations
Recommended For
,• WSU students enrolled in Biology 106
• Learners seeking extra practice before major biology exams
• Tutors, instructors, and study groups developing review materials
• Anyone wanting a structured, high-yield biology study guide
Your Complete Biology 106 Study Resource
With two full practice versions, 150 exam-style questions, correct answers, and thorough
rationales, the WSU Biology 106 Exam 1 Study Guide (2025–2026 Edition) offers a trusted,
high-quality tool for mastering introductory biology and achieving top academic results.
What types of meristems do you find in a plant body and how do they differ in function? -
ANSWERThe meristems found in a plant body are apical meristems and lateral meristems. Apical
meristems provides additional cells that allow growth in length, this is called primary growth and it is
found in tips of roots, shoots, and auxiliary buds. Lateral meristems add thickness to woody plants
through a process called secondary growth.
The primary growth of a root is mainly accomplished by what process and in which zone? - ANSWER-
The primary growth of a root is mainly accomplished by cell division and elongation in the zone of
elongation.
What is a basic difference in the organization of vascular tissue in eudicots when you compare root and
shoot tissues? - ANSWER-In eudicots, root vascular tissue is always in the center, if it is anything else it
is a shoot
In a leaf, what cell type is mainly necessary for CO2 and water vapor exchange with the atmosphere? a.
bark
b. mesophyll
c. trichome
d. epidermis
e. stomata - ANSWER-e. stomata
,c.
If you look at Figure 28.19 (primary and secondary growth of a stem), what two meristems are required
for secondary growth, and where are they located in the shoot? - ANSWER-The vascular cambium
and cork cambium are required for secondary growth. The vascular cambium is a thin layer located
between the secondary xylem and and the secondary phloem. The cork cambium is located toward the
outside helping create the bark.
What does a woody tree trunk that is many years old mainly consist of? - ANSWER-A woody tree
trunk that is many years old mainly consist of heartwood and sapwood.
What part of a tree trunk contains the majority of the living cells? - ANSWER-The sapwood (or
secondary phloem) contains the majority of living cells in a tree trunk.
What are the two key tissues that allow plants to transport water or organic nutrients, respectively, over
long distances?
a. mesophyll and dermal tissue
b. xylem and phloem
c. trichomes and stomata
d. sclerenchyma and phloem
e. plants lack in general such tissues - ANSWER-b. xylem and phloem
Gas exchange
(a) In the root, plants need to take up more CO2 or O2? - ANSWER-In the root, plants need to
take up more O2
Gas exchange
(b) Is the need for CO2 and O2 in leaves the same when compared to roots? - ANSWER-no, plants
need CO2
, Gas exchange
(c) Why do you think there is/is not a difference in gas exchange when you compare roots with
leaves? - ANSWER-CO2 is needed for leaves and the shoot system to take in so that O2 is released in
photosynthesis whereas roots just use the available nutrients in the soil and take in O2 while discharging
CO2
If you look at the apoplast and the symplast, which of the following statements are true?
a. The apoplast is always smaller than the symplast.
b. The apoplast is the continuum of cytosol connected by plasmodesmata.
The symplast does not allow the exchange of material with the apoplast.
d. Plasmodesmata connect the cytosol from neighboring cells to form the symplast, but they do not
connect to the apoplast.
e. In the symplastic route, water and solutes move along the continuum of cell walls and extracellular
spaces - ANSWER-d. Plasmodesmata connect the cytosol from neighboring cells to form the
symplast, but they do not connect to the apoplast.
If you add sugar to water does the water potential increase or decrease? a.
increase
b. decrease
c. no change at all - ANSWER-b. decrease
How is osmosis defined? - ANSWER-the diffusion of free water across a membrane
What is a protoplast?
a. It defines stomata cells that pro-actively loose water
b. This relates to the plastic elongation growth in the root differentiation zone
c. It is the long-distance transport of organic material in the phloem
d. This is the entire cell, excluding the cell wall.
