Bio 112 Exam 3 Verified Exam Questions and Answers Latest update
2026/2027
Question:
3. Types of Land Plants What is an example of a non-vascular plant? What are examples of vascular
seedless plants? What are examples of vascular plants with seeds? What challenges do land plants
face? Examples of extensive root systems
What is the first structure to emerge from most seeds? Which plants only produce taproots? What is
another root that could possibly come out of the taproot? Fibrous Root System Root hairs Cuticle
Stomata Stomata are surrounded by a pair of specialized epidermal cells called _____________
Relationship between CO2 and stomata density What type of light triggers to opening of Guard Cells?
What hormone triggers to closing of Guard Cells? Tracheids
Answer:
2) Vascular Seedless
3) Vascular with Seeds
bryophytes
1) Ferns
2) Lycophytes
1) Gymnosperms
2) Angiosperms
1) Smaller amount of available water
2) Desiccation
3) Transport of Water and minerals against gravity
4) UV radiation
1) Tap roots
2) Fibrous roots
3) Root hairs
4) Mycorrhizae
root from embryonic radicle (taproot)
1) Beets
2) Radishes
3) Carrots
4) Dandelions
lateral root A network of roots that does not arise as branches of the primary root but consists of many
branching roots that emerge from the base of the stem cylindrical extensions of root epidermal cells
that are important for acquisition of nutrients, microbe interactions, and plant anchorage waxy coating
relatively impermeable; on above ground plant structures microscopic pore on the surface of lannd
plants guard cells Inverse Relationship
1) High Atmospheric CO2 leads to low stomata
density
2) Low Atmospheric CO2 leads to high stomata
density Blue Light Abscisic acid Specialized elongated cells within the xylem that contain protein
structures that facilitate upward transport of water and minerals
, 1) Annular
2) Spiral
Question:
5. Types of secondary wall thickenings in tracheids Direction of flow of water through plants Plants
display an _ __________ life cycle
Answer:
3) Scalariform
4) Reticulate
5) Pitted
1) Water enters plants through roots
2) Water and carbohydrates travel to all parts of the
plant
3) Water exits the plant through stomata in leaves
Alternation of Generations
Question:
2. alternating muti-cellular life forms of plants Gametophyte generation is ______ producing
Sporophyte generation is _ _____ producing Sporophyte generation is dominant in which plants? Only
the sporophyte generation has _________ tissue. vascular tissue Gametophyte generation is dominant
in which plants?
Gametophyte contains a gamete producing region called the __________ Antheridia Archegonia
Xylem Phloem
Answer:
1) Gametophye generation (1n)
2) Sporophyte generation (2n)
gamete spore Ferns, Trees, Gymnosperms, Angiosperms vascular specialized tissue in higher plants
for conducting water and minerals mosses gametangia Male gametangia that produce sperm Female
gametangia that produce eggs vascular tissue that carries water and dissolved minerals from the roots
of a plant to its leaves Vascular tissue that transports nutrients from the roots of a plant to its leaves
1) Within a cell (cellular level)
Question:
3. scales of transport in plants
Answer:
2) Short-distance cell to cell (tissue level)
3) Long-distance in xylem and phloem (whole plant
level)
1) Osmosis and Diffusion
2026/2027
Question:
3. Types of Land Plants What is an example of a non-vascular plant? What are examples of vascular
seedless plants? What are examples of vascular plants with seeds? What challenges do land plants
face? Examples of extensive root systems
What is the first structure to emerge from most seeds? Which plants only produce taproots? What is
another root that could possibly come out of the taproot? Fibrous Root System Root hairs Cuticle
Stomata Stomata are surrounded by a pair of specialized epidermal cells called _____________
Relationship between CO2 and stomata density What type of light triggers to opening of Guard Cells?
What hormone triggers to closing of Guard Cells? Tracheids
Answer:
2) Vascular Seedless
3) Vascular with Seeds
bryophytes
1) Ferns
2) Lycophytes
1) Gymnosperms
2) Angiosperms
1) Smaller amount of available water
2) Desiccation
3) Transport of Water and minerals against gravity
4) UV radiation
1) Tap roots
2) Fibrous roots
3) Root hairs
4) Mycorrhizae
root from embryonic radicle (taproot)
1) Beets
2) Radishes
3) Carrots
4) Dandelions
lateral root A network of roots that does not arise as branches of the primary root but consists of many
branching roots that emerge from the base of the stem cylindrical extensions of root epidermal cells
that are important for acquisition of nutrients, microbe interactions, and plant anchorage waxy coating
relatively impermeable; on above ground plant structures microscopic pore on the surface of lannd
plants guard cells Inverse Relationship
1) High Atmospheric CO2 leads to low stomata
density
2) Low Atmospheric CO2 leads to high stomata
density Blue Light Abscisic acid Specialized elongated cells within the xylem that contain protein
structures that facilitate upward transport of water and minerals
, 1) Annular
2) Spiral
Question:
5. Types of secondary wall thickenings in tracheids Direction of flow of water through plants Plants
display an _ __________ life cycle
Answer:
3) Scalariform
4) Reticulate
5) Pitted
1) Water enters plants through roots
2) Water and carbohydrates travel to all parts of the
plant
3) Water exits the plant through stomata in leaves
Alternation of Generations
Question:
2. alternating muti-cellular life forms of plants Gametophyte generation is ______ producing
Sporophyte generation is _ _____ producing Sporophyte generation is dominant in which plants? Only
the sporophyte generation has _________ tissue. vascular tissue Gametophyte generation is dominant
in which plants?
Gametophyte contains a gamete producing region called the __________ Antheridia Archegonia
Xylem Phloem
Answer:
1) Gametophye generation (1n)
2) Sporophyte generation (2n)
gamete spore Ferns, Trees, Gymnosperms, Angiosperms vascular specialized tissue in higher plants
for conducting water and minerals mosses gametangia Male gametangia that produce sperm Female
gametangia that produce eggs vascular tissue that carries water and dissolved minerals from the roots
of a plant to its leaves Vascular tissue that transports nutrients from the roots of a plant to its leaves
1) Within a cell (cellular level)
Question:
3. scales of transport in plants
Answer:
2) Short-distance cell to cell (tissue level)
3) Long-distance in xylem and phloem (whole plant
level)
1) Osmosis and Diffusion
