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BIOL 1108
BIOL 1108: Exam 3 Principles of Biology II
(Latest 2026/ 2027 Update) Review| 100%
Verified Questions & Answer| Grade A.
1. some characteristics that you might think are unique to plants are actually shared with
other eukaryotes such as _____: 1) multicellular, photosynthetic, and & autotrophic
2) cell walls made of cellulose
3) chloroplasts with chlorophylls a and b
2.the closest relatives of plants are _____: charophytes (green algae)
3.charophytes and plants share traits such as _____: 1) protein rings that synthesize
cellulose 2) similar sperm morphology
3) genomic similarities
4.charophytes and plants also both have _____: sporopollenin
5.sporopollenin: a durable polymer that covers exposed zygotes of charophyte algae and
forms the walls of plant spores, preventing them from drying out
6.sporopollenin are ______: 1) important for the first colonization of land
2) the source of the earliest fossils of plants
BIOL 1108
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BIOL 1108
7.what is unique about plants?: alternation of generations
8.alternation of generations: a type of life cycle consisting of multicellular forms that
give rise to each other in turn
1) a gametophyte (multicellular, haploid) produces haploid gametes through mitosis
2) gametes unite through fertilization to form a diploid zygote, which grows into a
sporophyte
3) the sporophyte produces unicellular, haploid spores through meiosis
4) these spores develop into multicellular, haploid gametophytes
9. gametophyte: gamete-producing plant; multicellular haploid phase of a plant life
cycle
10. sporophyte: Diploid, or spore-producing, phase of an organism. Makes haploid
spores by meiosis
11. gametangia: A reproductive organ that houses and protects the gametes of a plant
BIOL 1108
, 3
BIOL 1108
12 embryophytes: Alternate name for land plants that refers to their shared derived trait
of multicellular, dependent embryos
13. sporangia: located on the tip of the mature sporophyte, where meiosis occurs,
producing haploid spores
14. each spore is protected by _____: sporopollenin
15. additional derived traits in some plants _____: 1) cuticle 2) stomata
16. cuticle: a waxy covering on the surface of leaves that prevents desiccation
17. stomata: microscopic pores on the surface of leaves
that allows gas exchange
18. phylogeny of the major groups of plants:
19. plants (phylogeny): 1) bryophytes
2) angiosperms
3) gymnosperms
4) monilophytes
5) lycophytes
BIOL 1108
BIOL 1108
BIOL 1108: Exam 3 Principles of Biology II
(Latest 2026/ 2027 Update) Review| 100%
Verified Questions & Answer| Grade A.
1. some characteristics that you might think are unique to plants are actually shared with
other eukaryotes such as _____: 1) multicellular, photosynthetic, and & autotrophic
2) cell walls made of cellulose
3) chloroplasts with chlorophylls a and b
2.the closest relatives of plants are _____: charophytes (green algae)
3.charophytes and plants share traits such as _____: 1) protein rings that synthesize
cellulose 2) similar sperm morphology
3) genomic similarities
4.charophytes and plants also both have _____: sporopollenin
5.sporopollenin: a durable polymer that covers exposed zygotes of charophyte algae and
forms the walls of plant spores, preventing them from drying out
6.sporopollenin are ______: 1) important for the first colonization of land
2) the source of the earliest fossils of plants
BIOL 1108
, 2
BIOL 1108
7.what is unique about plants?: alternation of generations
8.alternation of generations: a type of life cycle consisting of multicellular forms that
give rise to each other in turn
1) a gametophyte (multicellular, haploid) produces haploid gametes through mitosis
2) gametes unite through fertilization to form a diploid zygote, which grows into a
sporophyte
3) the sporophyte produces unicellular, haploid spores through meiosis
4) these spores develop into multicellular, haploid gametophytes
9. gametophyte: gamete-producing plant; multicellular haploid phase of a plant life
cycle
10. sporophyte: Diploid, or spore-producing, phase of an organism. Makes haploid
spores by meiosis
11. gametangia: A reproductive organ that houses and protects the gametes of a plant
BIOL 1108
, 3
BIOL 1108
12 embryophytes: Alternate name for land plants that refers to their shared derived trait
of multicellular, dependent embryos
13. sporangia: located on the tip of the mature sporophyte, where meiosis occurs,
producing haploid spores
14. each spore is protected by _____: sporopollenin
15. additional derived traits in some plants _____: 1) cuticle 2) stomata
16. cuticle: a waxy covering on the surface of leaves that prevents desiccation
17. stomata: microscopic pores on the surface of leaves
that allows gas exchange
18. phylogeny of the major groups of plants:
19. plants (phylogeny): 1) bryophytes
2) angiosperms
3) gymnosperms
4) monilophytes
5) lycophytes
BIOL 1108
