Transcript SIBio3LabPracQuestio.. - Chemistry-i

SI session
Lab. Practice for
Final
Part II
Spring 2009
Dr. Hughey’s Bio 3 (Lab.)
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Based on what is situated in front of you, write a
hypothesis. How would you test your
hypothesis? List your independent, dependent,
and control variables.
HypothesisHow TestIndependentDependentControl-
IAA
(Auxin)
Lanolin
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B
A
E
C
D
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Using the specimens in previous slide, write a useful (functional)
dichotomous key.
1. Leaves flat ------------------------------ 2
1. Leaves needle-like ------------------- Plant E
2. Leaf netted veined ------------------------ 3
2. Leaf parallel veined -------------------------Plant C
3. Leaf margin entire ------------------------ 3
3. Leaf margin lobed ------------------------ Plant B
4. Arrangement of leaves opposite ........................... Plant A
4. Arrangement of leaves bipinnately compound ….…Plant D
10
X
100X
40
X
What is the total magnification of the
specimen in view?
400X
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B
A
What is the name of each microscope?
Microscopic A- Compound microscope
Microscopic B- Dissecting microscope
You have oscillatoria and Iris flower. Which microscope are you
gonna use?
Oscillatoria –Microscopic A
Iris flower – Microscpic B
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Label and function.
E
F
B
G
C
H
I
A
D
Microscopic A
Microscopic B
Label.
A:Illuminator; Light source
B:Arm; carry the microscope
C:Coarse adjustment knob;for focus
D:Base; supports the microscope
Label.
E:Oculars; Maginification; look through
F:Nosepiece; holds the objectives
G:Objective lens;magnification
H:Stage Clips; hold specimens
I: Base or stage; supports the micros
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Define.
Parfocal – stay in focus when magnification is changed
Maginification - the number of times an image is enlarged.
Resolution – a measurement of clarity, the smallest distance
between two points on a specimen that can still be
distinguished.
Field of view - the diameter of the circle of view you can see
when looking down a microscope.
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40X
10X
Specimen B
Specimen A
Calculate the cell length in each
Specimen A - 0.028mm
Specimen B- 0.0875mm
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Construct a cladogram based on data provided. Map the
evolutionary changes onto your tree.
*Please, replace “present” with “1” and “absent” with “0.”
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Gymnosperm
Angiosperm
Fruit
Flowers
Pteridophyte
Bryophyte
Green Algae
Seeds
Secondary growth
Pollen
Independent gametophyte and
Sporophyte absent
Nonmotile sperm
Independent gametophyte and Sporophyte
Vascular tissue
Branching sporophyte
Sporophyte Dorminant?
Cuticle
Terrestrial
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Phylum _____________
Basidomycota
A: Gill
B: Basidiospoers
A
B
C
Ascomycota
Phylum _____________
What is the name of the sac-like
structure in view? What are inside?
Is this structure for asexual or
sexual reproduction?
Asci; Ascospores; sexual
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Phylum _____________
Ascomycota
Genus _____________
Aspergillus
What is the name of the structure? What
happens in these structure in view?
Conidia; Produce conidiospores (asexual)
Zygomycota
Phylum _____________
Rhizopus
Genus _____________
D:Zygosporangium
E: Gametangia
D
E
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C
A
D
B
What is the common name of the photosynthetic organism in front
of you? Lichen
How many of organisms are there in each specimen? What
are they? Two; Algae + fungi (Ascomycota, Basidiomycota)
What type of relationship are there (e.g parasitic, symbiosis,
friendship, enemies,….etc)?
What types of growth form are in A, B, & C?
C: Fruticose
A: Fruticose
D: Foliose
B: Crustose
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You are looking at one of specimen of the
previous slide. What is the name of layer in the
black or purple dot? Algal layer
The left sides are come from roots of a
plant. What is the relationship
presented? Explain in detail
(e.g. things that they give and take each
other.)
Symbiosis (mutualism); The plant
provides fungi with
nutrient(carbohydrates). The fungi help
the plant to obtain nitrogen and protect
the plant from pathogen.
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Give the name in each slide.(hint, one is
present outside and the other inside.)
A
A: Endomycorrhiza
B: Ectomycorrhiza
What is the difference between A and B?
A - Fungal hyphae penetrate the plant
cell wall in root.
B – Fungi wrap outside root
B
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G
Phylum _____________
Oomycota
Genus _____________
Saprolegnia
A: Antheridium
B: Antheridium
C:Oogonium
D:Egg
E: oogonial stalk
F: Nothing
G:Hypae
What is the name of middle dark circle one?
Oospore or zygote (after fertilization)
Sexual or Asexual? Sexual
If this is sexual, how do they fertilize
to make zygotes? If this is asexual,
how do they replicate?
Sperm migrate toward the egg cell through a
fertilization tube sperm fertilization tube.
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A
Phylum _____________
Euglenophyta
Genus _____________
Euglena
B
Phylum _____________
Ascomycota
Genus _____________
Morchella
D
C
Phylum _____________
Basidiomycota
Genus _____________
Amanita
Phylum _____________
Chytridiomycota
Genus _____________
Allomyces
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What is name of the structure? What is
the name of this type of asexual
reproduction?
Yeast; Asexual; budding
Phylum _____________
Dinophyta
Peridium
Genus _____________
Are they motile? If so, how?
Yes; using their flagellates
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B
C
A
D
Phylum _____________
Heterokontophyta
Genus _____________
Fucus
Label A: Receptacles
B: Air bladder
C: Receptacle
D: Conceptacle
Function of A: Contain male or female
conceptacle; Reproductive
system
Function of B: Floating
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Monoecious? Dioecious?
How do you know?
Monoecious; Having reproductive
organs typical of both sexes
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Phylum _____________
Rhophyta
Genus _____________
Polysiphonia
What is the structure in left slide? What
happens in this structure?
Tetrasporangia-Produce tetraspores(n)
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Phylum _____________
Chlorophyta
Genus _____________
Chara
A
Label and function A: Oogonium –produce egg
B: Anteridium - produce sperm
B
Phylum _____________
Chlorophyta
Genus _____________
Spirogyra
C
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Phylum _____________
Rhodophyta
Genus _____________
Polysiphonia
Phylum _____________
Chlorophyta
Volvox
Genus _____________
Heterokontophyta
Phylum _____________
Macrocystit
Genus _____________
Phylum _____________
Chlorophyta
Oedogonium
Genus _____________
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You are seeing a Bryophyte. What
is the name of the thread-like
structure?
Protonemata
What is name of structure A&B?
What happens in this structure?
A: Sporangia; produce spores
B: Archegonia; produce eggs
B
A
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Phylum _____________
Pteridophyta
Genus _____________
Psilotum
What is the botanical name of the yellow thing in this
picture? What happen inside?
Sporangium(or Sporangia); produce spores.
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What is the name of thread-like thing? Function?
Elaters; aid in the disposal of spores.
A
What is the name of structure in A & B?
Homosporous?, Heterosporous?
A: Homosporous
B: Heterosporous
B
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D
A
What is the name of
structure you are
E seeing? Prothallus
Label.
A: Archegonia
B: Antheridia
C:Rhizoids
D:Archegonia
E: Antheridia
B
C
Phylum _____________
Pteridophyta
Genus _____________
Filicales
What is the name of structure?
What happen inside?
Sori; Contain sporangia that produce spores.
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What is the term of cultivation of plants in nutrient solution
rather than in soil? Hydroponics
What is the name of a condition in which
leaves produce insufficient chlorophyll
(turn yellow)? Chlorosis
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A
C
B
What deficiency is in each plant? Use dichotomous key.
A: -P
B: -Fe
C: -N
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You choose two columns and counting
ears (corn grains) of the left corn.
What is phenotype ratio in the corn?
A: 30ea B:12ea
C: 10ea D: 5 ea
Purple starch : Purple sweet: Yellow starch : Yellow sweet
9:3:3:1
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