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Bio 122 Lab Final > Plant Diversity > Flashcards

Plant Diversity Flashcards

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Biology 101 flashcards
1
Q

What is the function of vascular tissue?

A

its used to transport nutrients and water through the plants

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2
Q

What is the function of a root system?

A

anchoring system, ability to absorb underground water and nutrients

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3
Q

What is the function of the cuticle/cork?

A

protection, decrease water loss

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4
Q

What is gas exchange?

A

pores that allow for gas exchange

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5
Q

What is the cycle of alternation of generations of plants?

A

sporophyte (multicellular diploid) —> meiosis —> haploid spores —> mitosis —> gametophyte (multicellular haploid) —> mitosis —> gametes —> fertilization —> zygote (diploid) —> mitosis

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6
Q

What do diploid plants produce?

A

spores (sporophyte)

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7
Q

What do haploid plants produce?

A

gametes (gametophyte)

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8
Q

How many times does meiosis occur in the life cycle?

A

once

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9
Q

What are bryophytes?

A

mosses, liverworts, and hornworts

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10
Q

What are the characteristics of bryophytes?

A

seedless nonvascular plants, water is necessary for reproduction, lack vascular tissue, no true roots, stems, or leaves, cant absorb water from the soil, rhizoids used to anchor (root-like organs), use simple diffusion of water for transportation and reproduction, and the gametophyte is dominant generation

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11
Q

What are pterophytes?

A

ferns, horsetails, and lycophytes

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12
Q

What are the characteristics of pterophytes?

A

seedless vascular plants, have true stems, roots, and leaves, and have vascular tissue (xylem and phloem)

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13
Q

What are gymnosperms?

A

cycads, ginkgo, and conifers

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14
Q

What are the characteristics of gymnosperms?

A

vascular seed plants, have seeds, pollen: immature male gametophyte, and doesn’t need water for fertilization

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15
Q

What are the characteristics of conifers?

A

cones are the reproductive structures; male and female, and the cone is the site for all alternation of generations

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16
Q

What are the features that help to reduce drought in conifers?

A

leaves have reduced surface area (needles), sunken stomates, and thick cuticles

17
Q

What are the characteristics of angiosperms?

A

vascular seed plants, very diverse, flowers are key characteristics, and the flower if the site of all alternation of generations

18
Q

What are the two classes of flowering plants?

A

monocots (grasses, palms, lilies) and dicots/eudicots (herbaceous and woody, most plants)

19
Q

Monocot vs dicot:

A

monocot: seed-one cotyledon, root- fibrous roots, vascular- scattered, leaf- parallel veins, flower- multiples of three

dicot: seed- two cotyledon, root- tap roots, vascular- ringed, leaf- net-liked veins, flower- 4 or 5

Bio 122 Lab Final (10 decks)

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