CAMPBELL BIOLOGY CHAPTER 35 PLANT STRUCTURE, GROWTH AND DEVELOPMENT QUESTIONS AND ANSWERS LATEST UPDATED 2025/2026 A COMPLETE EXAM ALL ANSWERS 100% CORRECT DETAILED BEST GRADED A+ FOR SUCCESS

CAMPBELL BIOLOGY CHAPTER 35 PLANT STRUCTURE, GROWTH AND
DEVELOPMENT QUESTIONS AND ANSWERS LATEST UPDATED
2025/2026 A COMPLETE EXAM ALL ANSWERS 100% CORRECT
DETAILED BEST GRADED A+ FOR SUCCESS

Collenchyma Cells - CORRECT ANSWERS -Collenchyma cells are grouped in strands and
help support young parts of the plant shoot
-thicker and uneven cell walls
-provide flexible support without restraining growth


Sclerenchyma cells - CORRECT ANSWERS -rigid because of thick secondary walls
strengthened with lignin
-dead at functional maturity


Two type of Sclerenchyma cells - CORRECT ANSWERS 1. Sclereids are short and
irregular in shape and have thick lignified secondary walls
2.Fibers are long and slender and arranged in threads


Sclereids - CORRECT ANSWERS are short and irregular in shape and have thick lignified
secondary walls


Fibers - CORRECT ANSWERS are long and slender and arranged in threads


Name that Water-Conducting Cells of the Xylem - CORRECT ANSWERS 1. tracheids
2. vessel elements
Both are dead at maturity


Tracheids are found in - CORRECT ANSWERS Tracheids are found in the xylem of all
vascular plants

,CAMPBELL BIOLOGY CHAPTER 35 PLANT STRUCTURE, GROWTH AND
DEVELOPMENT QUESTIONS AND ANSWERS LATEST UPDATED
2025/2026 A COMPLETE EXAM ALL ANSWERS 100% CORRECT
DETAILED BEST GRADED A+ FOR SUCCESS

Conifers have only what type of water-Conducting cells of Xylem? - CORRECT ANSWERS
Conifers have only tracheids


Vessel elements are common to - CORRECT ANSWERS to most angiosperms and a few
gymnosperms


Vessel elements align end to end to form - CORRECT ANSWERS long micropipes called
vessels


Sugar-Conducting Cells of the Phloem - CORRECT ANSWERS 1. Sieve-tube elements
2. companion cell


Sieve-tube elements - CORRECT ANSWERS -are alive at functional maturity, though
they lack organelles
-Each sieve-tube element has a companion cell whose nucleus and ribosomes serve both cells


Sieve plates - CORRECT ANSWERS are the porous end walls that allow fluid to flow
between cells along the sieve tube


A plant can grow throughout its life - CORRECT ANSWERS this is called indeterminate
growth


Meristems are - CORRECT ANSWERS perpetually embryonic tissue and allow for
indeterminate growth


Some plant organs cease to grow at a certain size; this is called - CORRECT ANSWERS
determinate growth

, CAMPBELL BIOLOGY CHAPTER 35 PLANT STRUCTURE, GROWTH AND
DEVELOPMENT QUESTIONS AND ANSWERS LATEST UPDATED
2025/2026 A COMPLETE EXAM ALL ANSWERS 100% CORRECT
DETAILED BEST GRADED A+ FOR SUCCESS

-Leaves and flowers


Name the two main types of meristems - CORRECT ANSWERS -Apical Meristems
-Lateral Meristems


Apical meristems - CORRECT ANSWERS -Are located at the tips of roots and shoots
-elongate shoots and roots, a process called primary growth


Lateral meristems - CORRECT ANSWERS add thickness to woody plants, a process
called secondary growth


Name the two Lateral meristems - CORRECT ANSWERS -Vascular cambium
-Cork cambium


The vascular cambium - CORRECT ANSWERS adds layers of vascular tissue called
secondary xylem (wood) and secondary phloem


The cork cambium - CORRECT ANSWERS replaces the epidermis with periderm, which
is thicker and tougher


Meristems give rise to - CORRECT ANSWERS -Initials, also called stem cells, which
remain in the meristem
-Derivatives, which become specialized in mature tissues


Flowering plants can be categorized based on the length of their life cycle - CORRECT
ANSWERS -Annuals: complete their life cycle in a year or less