BOT3015 Final 2025 Exam Answers All Correct
In woody plants the cork cambium produces new tissues that increase the girth of the
stem. When this happens the epidermis is sloughed off and replaced by the
__________________ - Answer-periderm
/.What is the function of phloem in plants - Answer-food conduction
/.all components of phloem - Answer-sieve-tube members, companion cells
/.What is the main function of xylem in plants - Answer-to transport water and minerals
throughout the plant
/.The outermost cell layer of young plant organs is known as the _____________ -
Answer-epidermis
/.What are two types of conducting vascular tissue - Answer-xylem, phloem
/.secretory cells or tissues in plants are usually derived from - Answer-parenchyma cells
/.the epidermis of aboveground plant parts form outgrowths consisting of one or several
cells. These hairs are usually referred to as ____________ - Answer-trichomes
/.The most common tissue type in plants is _______________ - Answer-parenchyma
/.What are characteristics of vessel elements - Answer-Pairs of vessel elements can be
separated by a perforation plate
The cell walls of vessel elements are often open at each end
/.In conifers and ferns, sieve cells have ___________ cells, which are the equivalent to
companion cells - Answer-albuminous
/.____________ is NOT a substance secreted by a plant's secretory cells or tissues -
Answer-Lignin
/.What is true of a cuticle - Answer-It determines how much water is lost through
evaporation
, It is exceptionally resistant to pathogens including bacteria and viruses
/.Companion cells carry out metabolic functions needed to maintain - Answer-sieve-tube
members
/.Plants can increase the absorptive surface area of their roots by making root hairs.
The root hairs are tubular extensions of ________ - Answer-epidermal cells
/.Plants leaves have numerous openings called ____________, bordered by pairs of
specialized cells known as __________ cells. Plants exchange gases through those
openings - Answer-stomata
guard
/.Tracheids can sometimes form bordered pits, through which water flow between
individual tracheid cells can be regulated . Bordered pits are composed of a pit
__________ and a thickened region called a ____________ - Answer-membrane
tube
/.The cytoplasm of adjacent sieve tube members extend from cell to cell through regions
filled with small pores called - Answer-sieve plates
/.The following exhibit a multilayered epidermis - Answer-Velamen roots of orchids
leaves of members of the Piperaceae
Leaves of some tropical figs
/.Some plants secrete protective or other substances through modified epidermal cells
known as - Answer-glands
/.The characteristics of tracheids are - Answer-They have thick secondary cell walls
They are tapered at each end
They are dead at maturity
/.The main conductive cells in phloem are the cylindrical _____________ members.
Closely associated with them are the narrow, more tapered ____________ cells -
Answer-sieve tube
companion
In woody plants the cork cambium produces new tissues that increase the girth of the
stem. When this happens the epidermis is sloughed off and replaced by the
__________________ - Answer-periderm
/.What is the function of phloem in plants - Answer-food conduction
/.all components of phloem - Answer-sieve-tube members, companion cells
/.What is the main function of xylem in plants - Answer-to transport water and minerals
throughout the plant
/.The outermost cell layer of young plant organs is known as the _____________ -
Answer-epidermis
/.What are two types of conducting vascular tissue - Answer-xylem, phloem
/.secretory cells or tissues in plants are usually derived from - Answer-parenchyma cells
/.the epidermis of aboveground plant parts form outgrowths consisting of one or several
cells. These hairs are usually referred to as ____________ - Answer-trichomes
/.The most common tissue type in plants is _______________ - Answer-parenchyma
/.What are characteristics of vessel elements - Answer-Pairs of vessel elements can be
separated by a perforation plate
The cell walls of vessel elements are often open at each end
/.In conifers and ferns, sieve cells have ___________ cells, which are the equivalent to
companion cells - Answer-albuminous
/.____________ is NOT a substance secreted by a plant's secretory cells or tissues -
Answer-Lignin
/.What is true of a cuticle - Answer-It determines how much water is lost through
evaporation
, It is exceptionally resistant to pathogens including bacteria and viruses
/.Companion cells carry out metabolic functions needed to maintain - Answer-sieve-tube
members
/.Plants can increase the absorptive surface area of their roots by making root hairs.
The root hairs are tubular extensions of ________ - Answer-epidermal cells
/.Plants leaves have numerous openings called ____________, bordered by pairs of
specialized cells known as __________ cells. Plants exchange gases through those
openings - Answer-stomata
guard
/.Tracheids can sometimes form bordered pits, through which water flow between
individual tracheid cells can be regulated . Bordered pits are composed of a pit
__________ and a thickened region called a ____________ - Answer-membrane
tube
/.The cytoplasm of adjacent sieve tube members extend from cell to cell through regions
filled with small pores called - Answer-sieve plates
/.The following exhibit a multilayered epidermis - Answer-Velamen roots of orchids
leaves of members of the Piperaceae
Leaves of some tropical figs
/.Some plants secrete protective or other substances through modified epidermal cells
known as - Answer-glands
/.The characteristics of tracheids are - Answer-They have thick secondary cell walls
They are tapered at each end
They are dead at maturity
/.The main conductive cells in phloem are the cylindrical _____________ members.
Closely associated with them are the narrow, more tapered ____________ cells -
Answer-sieve tube
companion
