Bio 182 Exam 2 questions with verified
solutions
Land Plants - correct answer ✔✔Complex multicellular organism that range in size from minute to
MASSIVE. Adaptations of this type of plant include anatomical, physiological, and reproductive features.
Waxy Cuticle - correct answer ✔✔Covers aerial portions of a plant, protects against water loss. Resides
ON TOP of the epidermis.
Stomata - correct answer ✔✔Used for gas exchanged, required for photosynthesis. Guard Cells surround
this and can open or close it depending on environmental/chemical interactions.
Antheridia - correct answer ✔✔Gametangia that produce SPERM CELLS. Considered "male".
Archegonia - correct answer ✔✔Gametangia that produce EGGS. Like, reproductive eggs. Like the kind
you eat, but not that kind. Considered "female".
Zygote/Embryo - correct answer ✔✔Sperm Cells/Egg cells are known as this. Fertilized plant cell eggs
grow up into plants. Seriously.
Vascular Tissue - correct answer ✔✔Contains lignin, which is a fiber component. Helps the plant out
with adding strength and support. Allow conduction to occur, and helps to resist disease.
Haploid (n) - correct answer ✔✔Gametophyte generation. Give rise through MITOSIS.
Diploid (2n) - correct answer ✔✔Sporophyte generation. Fused gametes produce haploid spores by
MEIOSIS.
Gametophyte Plant - correct answer ✔✔Produce gametes by mitosis.
, Gametes fuse (fertilization), and then form the zygote (1st stage of the sporophyte generation).
Dominate stage for all nonvascular plants.
Zygote - correct answer ✔✔Develops into a multicellular embryo. Protected and nourished by the
gametophyte. Sperm Cell.
Mature Sporophyte Plant - correct answer ✔✔Developed from the embryo, IT produces sporogenous
cells (spore producing cells. They make spores. All over the place. Ew.)
Xylem - correct answer ✔✔Conducts WATER and DISSOLVED MINERALS.
Phloem - correct answer ✔✔Conducts DISSOLVED SUGAR (and that's it.)
Charophytes - correct answer ✔✔Thought to be plants "nearest" the ancestor (a group of green algae.)
Byrophytes - correct answer ✔✔Nonvascular plants (gametophytes) are also known as this.
Nonvascular Plants - correct answer ✔✔Lack conducting system to transport nutrients, water &
minerals. (they got no xylem or phloem)
Instead they rely on diffusion and osmosis (xylem and phloem are overrated anyway.)
Nonvascular Plants - correct answer ✔✔Unlike that OTHER KIND OF PLANT, *these* plants have a
dominate Gametophyte generation.
Nonvascular Plants - correct answer ✔✔Sporophytes remain permanently attached on *this* kind of
plant. They depend on nutrition from that OTHER kind of plant. You know, using that osmosis and
diffusion stuff they do.
Mosses - correct answer ✔✔Live in dense colonies or beds, have tiny itty-bitty-widdle hair-like rooting
structures known as rhizoids. They got no true roots, stems, or leaves, and lack any vascular tissue. The
gametophyte stage is what we consider the green plants.
solutions
Land Plants - correct answer ✔✔Complex multicellular organism that range in size from minute to
MASSIVE. Adaptations of this type of plant include anatomical, physiological, and reproductive features.
Waxy Cuticle - correct answer ✔✔Covers aerial portions of a plant, protects against water loss. Resides
ON TOP of the epidermis.
Stomata - correct answer ✔✔Used for gas exchanged, required for photosynthesis. Guard Cells surround
this and can open or close it depending on environmental/chemical interactions.
Antheridia - correct answer ✔✔Gametangia that produce SPERM CELLS. Considered "male".
Archegonia - correct answer ✔✔Gametangia that produce EGGS. Like, reproductive eggs. Like the kind
you eat, but not that kind. Considered "female".
Zygote/Embryo - correct answer ✔✔Sperm Cells/Egg cells are known as this. Fertilized plant cell eggs
grow up into plants. Seriously.
Vascular Tissue - correct answer ✔✔Contains lignin, which is a fiber component. Helps the plant out
with adding strength and support. Allow conduction to occur, and helps to resist disease.
Haploid (n) - correct answer ✔✔Gametophyte generation. Give rise through MITOSIS.
Diploid (2n) - correct answer ✔✔Sporophyte generation. Fused gametes produce haploid spores by
MEIOSIS.
Gametophyte Plant - correct answer ✔✔Produce gametes by mitosis.
, Gametes fuse (fertilization), and then form the zygote (1st stage of the sporophyte generation).
Dominate stage for all nonvascular plants.
Zygote - correct answer ✔✔Develops into a multicellular embryo. Protected and nourished by the
gametophyte. Sperm Cell.
Mature Sporophyte Plant - correct answer ✔✔Developed from the embryo, IT produces sporogenous
cells (spore producing cells. They make spores. All over the place. Ew.)
Xylem - correct answer ✔✔Conducts WATER and DISSOLVED MINERALS.
Phloem - correct answer ✔✔Conducts DISSOLVED SUGAR (and that's it.)
Charophytes - correct answer ✔✔Thought to be plants "nearest" the ancestor (a group of green algae.)
Byrophytes - correct answer ✔✔Nonvascular plants (gametophytes) are also known as this.
Nonvascular Plants - correct answer ✔✔Lack conducting system to transport nutrients, water &
minerals. (they got no xylem or phloem)
Instead they rely on diffusion and osmosis (xylem and phloem are overrated anyway.)
Nonvascular Plants - correct answer ✔✔Unlike that OTHER KIND OF PLANT, *these* plants have a
dominate Gametophyte generation.
Nonvascular Plants - correct answer ✔✔Sporophytes remain permanently attached on *this* kind of
plant. They depend on nutrition from that OTHER kind of plant. You know, using that osmosis and
diffusion stuff they do.
Mosses - correct answer ✔✔Live in dense colonies or beds, have tiny itty-bitty-widdle hair-like rooting
structures known as rhizoids. They got no true roots, stems, or leaves, and lack any vascular tissue. The
gametophyte stage is what we consider the green plants.
