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Bio 182 Exam 2 questions with verified solutions

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Bio 182 Exam 2 questions with verified solutions

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  • October 19, 2024
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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.

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