GCU Bio 182 Exam 2 Questions and Answers
100% Solved
Protonema A spore germinates into a gametophyte composed of a ____________ and
gamete-producing gametophore.
Rhizoids Anchor gametophytes to substrate
Capsule A sporangium, also called a __________, which discharges spores
Gametophore The mature gamete-producing structure of a moss gametophyte.
Peristome The upper part of the moss capsule (sporangium) often specialized for gradual
spore discharage
Seta Stalk of a moss capsule
Foot Anchors the sporophyte to gametophyte and absorbs minerals and nutrients from it.
,Stomata Hornwort and moss sporophytes have ___________ for gas exchange; liverworts
do not
Peat Sphagnum forms extensive deposits of partially decayed organic material known as
___________
Peat ________ can be used as a source of fuel
Sphagnum Overharvesting of _____________ and/or a drop in water level in peatlands
could release stored CO2 to the atmosphere.
Vascular tissue ________________ allowed these plants to grow tall
Seedless vascular ___________________ plants have flagellated sperm and are usually
restricted to moist environments
Living vascular plants are characterized by • Life cycles with dominant sporophytes
, • Vascular tissues called xylem and phloem
• Well-developed roots and leaves
Xylem Vascular tissue that carries water upward from the roots to every part of a plant
Phloem Vascular tissue that carries water upward from the roots to every part of a plant
Tracheids Xylem conducts most of the water and minerals and includes dead cells called
_______________
Lignin Water-conducting cells are strengthened by __________ and provide structural
support
Phloem ____________ consists of living cells and distributes sugars, amino acids, and
other organic products
Roots _____________ are organs that anchor vascular plants
100% Solved
Protonema A spore germinates into a gametophyte composed of a ____________ and
gamete-producing gametophore.
Rhizoids Anchor gametophytes to substrate
Capsule A sporangium, also called a __________, which discharges spores
Gametophore The mature gamete-producing structure of a moss gametophyte.
Peristome The upper part of the moss capsule (sporangium) often specialized for gradual
spore discharage
Seta Stalk of a moss capsule
Foot Anchors the sporophyte to gametophyte and absorbs minerals and nutrients from it.
,Stomata Hornwort and moss sporophytes have ___________ for gas exchange; liverworts
do not
Peat Sphagnum forms extensive deposits of partially decayed organic material known as
___________
Peat ________ can be used as a source of fuel
Sphagnum Overharvesting of _____________ and/or a drop in water level in peatlands
could release stored CO2 to the atmosphere.
Vascular tissue ________________ allowed these plants to grow tall
Seedless vascular ___________________ plants have flagellated sperm and are usually
restricted to moist environments
Living vascular plants are characterized by • Life cycles with dominant sporophytes
, • Vascular tissues called xylem and phloem
• Well-developed roots and leaves
Xylem Vascular tissue that carries water upward from the roots to every part of a plant
Phloem Vascular tissue that carries water upward from the roots to every part of a plant
Tracheids Xylem conducts most of the water and minerals and includes dead cells called
_______________
Lignin Water-conducting cells are strengthened by __________ and provide structural
support
Phloem ____________ consists of living cells and distributes sugars, amino acids, and
other organic products
Roots _____________ are organs that anchor vascular plants
