Cincinnati-Main Biology 2: 1082 Evolution, Physiology, and
Ecology essentials ACTUAL EXAM 2 PREP QUESTIONS
COMPLETE ACCURATE EXAM 2026-2027 APPROVED
QUESTIONS AND CORRECT VERIFIED SOLUTIONS WITH
DETAILED RATIONALES (100% CORRECT VERIFIED
ANSWERS) LATEST UPDATED VERSION 2026 EDITION
In your group: The waterproof cuticle covering the epidermis of land
plants helps prevent dehydration, much like the skin of some land
animals. As a consequence, what other evolutionary adaptation was
important for most land plants?
A. the endodermis in the root
B. root hairs on the root epidermis
C. collenchyma fibers just beneath the surface of the epidermis
D. stomata in the leaves
D
In your group: Which of the following does not function as a site of
active cell division?
A. Shoot apical meristem
B. Root apical meristem
C.Parenchyma meristem
D.Cork cambium
C
In plants with only primary growth, the epidermis is not
A. one cell thick.
B. the outer protective coating of the plant.
C. covered by a waxy layer that constitutes the cuticle.
D. covered with bark.
D
,Primary growth in plants originates in
A. apical meristems.
B. lateral meristems.
C. vascular cambium.
D. cork cambium.
A
Which of the following cell types is not directly involved in transport,
i.e. part of xylem and phloem?
A.Parenchyma
B.Vessel elements
C.Sieve tube elements
D.Tracheids
E.Companion cells
A
The widening of a tree trunk is mostly due to the activity of its
A.apical meristem.
B.secondary phloem.
C.vascular cambium.
D.primary xylem
C
Photosynthesis occurs mostly in ______ cells.
A.Parenchyma
B.Sclerenchyma
C.Collenchyma
D.Phloem
A
,Which of the following consists of dead cells with thick cells walls, that
are primarily used to support the plant?
A.Parenchyma
B.Collenchyma
C.Sclerenchyma
D.Trienchyma
C
Most of the water taken up by a plant is __ _.
A.used as a solvent
B.used as a hydrogen source in photosynthesis
C.lost during transpiration
D.used to keep cells turgid
C
What is the main force by which most of the water within xylem vessels
moves toward the top of a tree?
A.active transport of ions into the stele
B.evaporation of water through stoma
C.the force of root pressure
D.osmosis in the root
B
Plant meristematic cells ___ _.
A) are distributed evenly in all tissues throughout the plant
B) are undifferentiated cells that produce new cells
C) increase the surface area of dermal tissue by developing root hairs
D) subdivide into three distinct cell types named parenchyma, ground
meristem, and procambium
B
, A water molecule could move all the way through a plant from soil to
root to leaf to air and pass through a living cell only once. This living
cell would be a part of which structure?
A. a guard cell
B. the root epidermis
C. the endodermis
D. the root cortex
C
In which of the following conditions do plants close their stomata? (Can
vote for more than one)
A. Bright sunlight
B. Water stress
C. Low CO2
D. Lack of wind
B
To maintain guard cell turgor, which of the following must occur?
A.Potassium ions are pumped out.
B. Energy is constantly expended.
C. Water exits by osmosis.
D. Stomata take up oxygen.
E. Transpiration occurs.
B
==
Ecology essentials ACTUAL EXAM 2 PREP QUESTIONS
COMPLETE ACCURATE EXAM 2026-2027 APPROVED
QUESTIONS AND CORRECT VERIFIED SOLUTIONS WITH
DETAILED RATIONALES (100% CORRECT VERIFIED
ANSWERS) LATEST UPDATED VERSION 2026 EDITION
In your group: The waterproof cuticle covering the epidermis of land
plants helps prevent dehydration, much like the skin of some land
animals. As a consequence, what other evolutionary adaptation was
important for most land plants?
A. the endodermis in the root
B. root hairs on the root epidermis
C. collenchyma fibers just beneath the surface of the epidermis
D. stomata in the leaves
D
In your group: Which of the following does not function as a site of
active cell division?
A. Shoot apical meristem
B. Root apical meristem
C.Parenchyma meristem
D.Cork cambium
C
In plants with only primary growth, the epidermis is not
A. one cell thick.
B. the outer protective coating of the plant.
C. covered by a waxy layer that constitutes the cuticle.
D. covered with bark.
D
,Primary growth in plants originates in
A. apical meristems.
B. lateral meristems.
C. vascular cambium.
D. cork cambium.
A
Which of the following cell types is not directly involved in transport,
i.e. part of xylem and phloem?
A.Parenchyma
B.Vessel elements
C.Sieve tube elements
D.Tracheids
E.Companion cells
A
The widening of a tree trunk is mostly due to the activity of its
A.apical meristem.
B.secondary phloem.
C.vascular cambium.
D.primary xylem
C
Photosynthesis occurs mostly in ______ cells.
A.Parenchyma
B.Sclerenchyma
C.Collenchyma
D.Phloem
A
,Which of the following consists of dead cells with thick cells walls, that
are primarily used to support the plant?
A.Parenchyma
B.Collenchyma
C.Sclerenchyma
D.Trienchyma
C
Most of the water taken up by a plant is __ _.
A.used as a solvent
B.used as a hydrogen source in photosynthesis
C.lost during transpiration
D.used to keep cells turgid
C
What is the main force by which most of the water within xylem vessels
moves toward the top of a tree?
A.active transport of ions into the stele
B.evaporation of water through stoma
C.the force of root pressure
D.osmosis in the root
B
Plant meristematic cells ___ _.
A) are distributed evenly in all tissues throughout the plant
B) are undifferentiated cells that produce new cells
C) increase the surface area of dermal tissue by developing root hairs
D) subdivide into three distinct cell types named parenchyma, ground
meristem, and procambium
B
, A water molecule could move all the way through a plant from soil to
root to leaf to air and pass through a living cell only once. This living
cell would be a part of which structure?
A. a guard cell
B. the root epidermis
C. the endodermis
D. the root cortex
C
In which of the following conditions do plants close their stomata? (Can
vote for more than one)
A. Bright sunlight
B. Water stress
C. Low CO2
D. Lack of wind
B
To maintain guard cell turgor, which of the following must occur?
A.Potassium ions are pumped out.
B. Energy is constantly expended.
C. Water exits by osmosis.
D. Stomata take up oxygen.
E. Transpiration occurs.
B
==
