Exam (elaborations)
Bio 182 Exam 2 questions with verified solutions
- Course
- BIO 182
- Institution
- Arizona State University
Bio 182 Exam 2 questions with verified solutions
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Bio 182 Exam 2 questions with verifiedsolutions
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.
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