Unit2 L2 PROTISTS and FUNGI
PAGE 93
1- False; True; False; True
2- Seaweed is a multicellular protist that can grow to
be quite large.
3- A spore is a reproductive cell. ///Hyphae are
threadlike fibers that make up fungi.
4- Not required.
5- Both organisms are protists because they do not
fit in any other eukaryotic groups.
6- Draw
7- Structures for movement allow protists to move
towards food or light.
8- Not required.
9- Protists are eukaryotes, whereas bacteria are
prokaryotes. Protists must undergo division of the
nucleus. In contrast, bacterial DNA adheres to the
cell membrane after it is replicated, and the DNA
is divided by the bacterial cell growing longer and
dividing into two parts.
10- A: Diploid; B: Haploid; C: Adult
11- Not required.
12- Plant-like protists could not survive in dark
environments without enough sunlight for
photosynthesis.
13- Animal-like protists cannot make their own food;
can move; some are parasites; some eat other
organisms. ///Fungus-like protists cannot move;
absorb nutrients; complex life cycle; many are
parasites; produce spores./// plant-like protists
make their own food; cannot move; grouped by
color; most are multicellular.
14- Draw figure of mushroom
15- In both asexual and sexual reproduction, spores
can spread to new environments and wait for
favorable conditions to grow.
16- Spreading to new locations allows fungi to grow in
a variety of environments. This gives the fungi
more opportunities to grow and reproduce
successfully.
17- Not required.
18- Air pollution in the city might be increasing, since
air pollution kills lichens.
19- Gamete
20- Plant
21- Eukaryotes
22- Lichens
23- See number 13 page 99.
Lesson review Page 105
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9-
D
B
A
C
A helpful way to distinguish between diverse
protists is the way they get nutrients. Some
protists ingest food, like animals do, some make
food, like plants do, and some absorb nutrients,
like fungi do.
Zygote fungi (bread mold); Sac fungi (yeast); Club
fungi (mushrooms)
Fragmentation, binary fission
To reproduce sexually, fungi can fuse hyphae from
different individuals and release sexual spores. To
reproduce asexually, fungi can use fragmentation
or budding or produce asexual spores.
No. This protist has cilia and flagellum. These
structures help the organism move, so the
organism probably has to get food from its
environment.
10- Humans and fungi are both eukaryotes, whereas
bacteria are prokaryotes. Therefore, humans and
fungi have more similar cell structures, so it is
more difficult to develop a treatment that
destroys fungus cells without destroying human
cells.
11- The fungicide might have killed not only the fungal
infection but also helpful fungi that formed
mychorrhizae with the plant roots.