C. ESTRELLA
BOTANY 1
LAB EXAM 2 REVIEW GUIDE
TOPIC 8: MEIOSIS
- Understand the purpose of
meiosis and how it differs from mitosis.
- Know the stages and characteristics
in meiosis.
- Understand what is occurring
with the chromosomes in meiosis.
- What is haploid, diploid,
1n, and 2n?
TOPIC 10: PROKARYOTES
- Know the characteristics
of the Domain: Bacteria. What is prokaryotic?
- Know the three basic shapes
of bacteria.
- Understand what is involved
in sterile technique and the preparation of slides and staining
of bacteria to view under the microscope.
- Know what these three bacteria
look like: Streptococcus, Bacillus, Rhodospirillum
- Know the structure of a bacterial
cell in terms of: plasma membrane, chromatin bodies, ribosomes,
mesosome, cytoplasm, cell wall.
- Know what a Petri-plate with
nutrient agar is used for and how we test certain bacteria for
sensitivity to antibiotics.
- Know what nitrogen fixation
is and what type of bacterium is commonly associated with root
nodules on certain plants to effect nitrogen fixation.
- Understand how we tested
the possibility of enzyme production in bacteria using Bacillus
cereus and Escherichia coli. Why did we use iodine? How did you
know when an enzyme (amylase) was produced to break down the
starch? Why did we grow these bacteria on starch agar?
- What are cyanobacteria?
- Be able to identify these
bacteria:
- Oscillatoria, Nostoc, Gleocapsa
- What is a heterocyst? Where
is it found? What does it do?
- Identify ultrastructure of
cyanobacteria including: mucilagenous sheath, cell wall, photosynthetic
membranes (thylakoids), DNA region, ribosomes.
TOPIC 13: THE FUNGI
- Know the difference between
the phyla Zygomycota, Ascomycota, Basidiomycota.
- Know what types of fungi
are found in each of these divisions.
- What is the basis or criteria
for placing fungi in their respective divisions?
- Do fungi have chlorophyll?
Can they photosynthesize?
- Know these structures:
- hyphae, mycelium, spore,
zygospore, ascopspore, basidiospore, sporangium.
- What are gametangia?
- What is the relationship
between: ascus, ascocarp, ascospores; basidia, basidiocarp,
basidiospores; sporangium, sporangiophore, spores; conidia, conidiophore,
condidiospores.
- Which structures are 1n,
n + n, 2n? What is the meaning of mating types i.e. +
and - mating types?
- What is sexual reproduction
and asexual reproduction? What structures are commonly used in
sexual reproduction? What structures are commonly used in sexual
reproduction?
- What are representative specimens
that we studied in lab for Zygomycota? for Ascomycota?
for Basdiomycota?
- What is the difference between
bread mold, Morchella (morels), and mushrooms?
- What is the difference between
Rhizopus (bread mold) and Pilobolus (shooting fungus)?
- What is the difference between
yeast, Penicillium, Peziza, and Morchella?
- What is the difference between
store bought mushrooms (Agaricus), puffballs, and rusts
and smuts?
- What is the difference between
Morchella and the common mushroom Coprinus? In
what type of structures do each of these produce their sexual
spores?
- Be able to label a diagram
containing asci, and ascospores).
- Be able to label a diagram
of a common mushroom.
- Rust: Puccinia (wheat
rust): Know the difference
in urediniospores and teliospores . Which
of these spores will produce basidiospores? What do urediniospores
reinfect? Where are teliospores found? What do basidiospores
infect?
- Know life general life cycles
of: Zygomycota (Rhizopus), Ascomycota (Peziza),
and Basidiomycota (mushroom) so that you can identify
structures on slides, on diagrams, on photographs, and preserved
and/or live specimens.
- What is a lichen?
- Know the three different
growth forms of lichens and be able to classify a given lichen
as to what type of growth form it has.
- Be able to identify algal
and fungal components on a prepared slide of lichen.
- TOPIC 12: PROTISTA I:
SLIME MOLDS, EUGLENOIDS,AND RED ALGAE
- Know the differences between,
and if given an organism, be able to identify what phylum it
belongs to.
- Myxomycota (plasmodial
slime molds)
- Dictyosteliomycota (cellular
slime molds)
- Euglenophyta (euglenoids)
- Rhodophyta (red algae)
- What is cytoplasmic streaming
in a plasmodial slime mold?
- Understand the structures
(myxamoeba, slug, spore-bearing body) and life history
of a cellular slime mold such as Dictyostelium.
- Be able to identify Euglena
and know these structures on fig. 14-6: nucleus, chloroplasts,
eye spot (stigma), flagellum, pellicle.
- Understand the life cycles
of Physarum, Dictyostelium and Polysiphonia so that you would be able to identify
structures and answer questions that pertain to the life cycle
(meiosis, 1n, 2n, haploid, diploid, zygotic meiosis, gametic
meiosis, sporic.
Topic 13 Protista II: Heterokonts and Green Algae
1. Know the the phyla (Oomycota, Bacillariophyta,
Phaeophyta, Chlorophyta) and these examples:
Phylum: Oomycota
Saprolegnia (the water mold)
Phylum: Bacilliariophyta
diatoms
Phylum: Phaeophyta
Laminaria, Macrocystis, Fucus, Sargassum
Phylum: Chlorophyta
Class: Chlorophyceae
Chlamydomonas, Volvox, Hydrodictyon, Oedogonium,
Fritschiella
Class: Ulvophyceae
Ulothrix, Cladophora,Ulva, Codium
Class: Charophyceae
Spirogyra, Chara
2. Understand what a heterokont is and what phyla are
considered heterokont phyla.
3. Know the structures of the water mold Saprolegnia:
hyphae, mycelium, sporangia, zoosporangia, oogonia, eggs, antheridia,
oospores. Understand which structures and haploid and diploid.
4. Understand what makes the diatoms different than the
other phyla.
5. What is a pennate and a centric diatom and in what
habitat would you most likely find each?
6. What is the the overlapping cell walls of the diatom
called? What is it composed of?
7. What is the difference between kelps and rockweeds?
Be able to identify examples and kelps and rockweeds.
8. Know these structures of a kelp: holdfast, stipe,
blade, air bladders. If you cut the body of a kelp, what
two layers most noticeable?
9. Know the life cylce of Fucus?
10. Know these structure of Fucus: receptacles,
conceptacles, air bladders. What is the function of
air bladders?
11. Understand what Sargassum is and what the
name means. What is the Sargasso sea?
12. What is the Volvocine line and how does Chlamydomonas
and Volvox fit into the scheme? What are daughter
colonies?
13. Using the terms motile/nonmotile, unicellular/colonial,
filamentous/parenchymatous, characterize the different green algae
(example = Volvox is a motile colonial form).
14. Define: isogamous, anisogamous, oogamous.
15. What is intercalary growth? What are annular
scars? Where do we (what alga) find these structures?
16. Identify these structures: conjugation tube,
isogamete, zygote, zygospore. Is a zygospore haploid
or diploid?
17. Identify the complex gametangia (an oogonium and
an anteridium) on Chara.
18. Identify Ulva. What type of life cycle
does Ulva have? Be able to identify and classify
Codium to class from the herbarium mount.
SUMMARY OF LIFE
CYCLES TO KNOW FOR LAB EXAM 2
1. Zygomycota: Rhizopus
- zygotic meiosis life cycle
2. Ascomycota: typical ascomycete
- zygotic meiosis life cycle
3. Basidiomycota: life cycle
of mushroom - zygotic meiosis life cycle
4. Puccina graminis
(wheat rust) as presented in lab handout.
5. Myxomycota: typical myxomycete
- modified gametic meiosis life cycle
6. Phaeophyta: Fucus
- gametic meiosis
7. Chlorophyta: Ulva
- sporic (alternation of isomorphic generations)
8. Oomycota: Saprolegnia
- gametic
Classification for
this lab exam
Domain Bacteria
Bacteria
Cyanobacteria
Domain Eukarya
Kingdom Fungi
Phylum: Zygomycota
Phylum: Ascomycota
Phylum: Basidiomycota
Class: Basidiomycetes
Hymenomycetes
Gasteromycetes
Class: Teliomycetes
Class: Ustomycetes
Lichen
Mycorrhizae
Kingdom Protista
Phylum: Myxomycota
Phylum: Dictyosteliomycota
Phylum: Euglenophyta
Phylum: :Rhodophyta
Phylum: Oomycota
Phylum: Bacilliariophyta
Phylum: Phaeophyta
Phylum: Chlorophyta
Class: Chlorophyceae
Class: Ulvophyceae
Class: Charophyceae
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