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Organismal Bio Midterm
Auburn University Organismal Bio. Exam 2 flashcards
57
Biology
Undergraduate 2
03/08/2011

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Term
plant tissue type that gives rise to all other plant tissues or cell types is?
Definition
Meristem
Term
according to physiological evidence and some genetic data, which phylum has the greatest chance of changing from a grade and grouping with flowering plants to form a clade?
Definition
Phylum Gnetophyta
Term
soil that holds water well but not too well is?
Definition
loam
Term
plant with long tubular red flowers with no odor is pollinated by?
Definition
Birds
Term
some plants, such as legumes, have specialized root nodules where bacteria live in a mutualistic relationship with the plan. the bacterium help by?
Definition
changing nitrogen into a form that is usable by the plant
Term
this Phylum is found in fresh water and have a ciliated food-gathering organ called a corona. looks like a turning wheel. some use parthenogenesis for reproduction.
Definition
Rotifera
Term
seed coats, which protect plant embryos, are formed by?
Definition
2N cells from the sporophyte that give rise to the female gametophyte parent
Term
a long-day plant will flower if?
Definition
the duration of continuous darkness is less than a critical length.
Term

(Salic Acid)

 

this compound depicted above is often classified as a plant hormone, it serves what purpose in plant?

Definition
plant defense from pathogens
Term
which of the following is true of the angiosperm lifecycle?
Definition
gametophytes are totally dependent on the sporophytes
Term
according to cladograms for angiosperms, which is a sister group to the rest of the angiosperms?
Definition
Amborella
Term
in which of the pairs are the two terms equal?
Definition
embryo sac and female gametophyte
Term
the tissue that directly give rise to the secondary phloem and secondary xylem is?
Definition
vascular cambium
Term
what is the major disadvantage for self-pollinization and self-fertalization in plants?
Definition
offspring are generally stuck with a greater genetic load of bad mutations.
Term
which is a micronutrient in plants?
Definition
Fe
Term
which layer of cells controls the movement of nutrient minerals entering the xylem in the roots interior
Definition
endodermis
Term
how many chromosomes should be in an endosperm nucleus?
Definition
15
Term
this Phylum is vascular, see-bearing and only have one living species, not flowering, deciduous, highly resistant to pollution, females make seed pods that smell like ass.
Definition
Ginkophyta
Term
which tissue is incorrectly matched?
Definition
collenchyma - uniformly thick walled supportive tissue
Term
in the pressure flow hypothesis of Phloem movement, loading carbs like sucrose into the phloem occurs by?
Definition
active transport
Term
what is true of stamens, petals, carpels, and pinecone seeds.
Definition
they are modified leaves.
Term
which is a structure of angiosperm gametophytes?
Definition
pollen tubes
Term
this phylum is vascular, seed-bearing and has about 70 species in three genera
Definition
Gnetophyta
Term
if Archaeplastida is designated a kingdom then what will be true of this new kingdom? (Rhodophyta, Chlorophyta, Plantae)
Definition
it will be monophyletic
Term
the term embryo sac refers to?
Definition
the female gametophyte
Term
plants bend towards light because?
Definition
cell expansion is greater on the dark side of the stem
Term
the taxonomic levels differ from one another because of?
Definition
their inclusiveness
Term
the first step in the germination of a seed is?
Definition
imbibition of water
Term
this phylum is vascular, seed bearing, have the largest known sperm, look like palm trees, but reproduce with cones.
Definition
Cycadophyta
Term
most dry weight of a plant a result of an intake of?
Definition
CO2 through the stoma
Term
seed plants?
Definition
are always heterosporous
Term
these plants trap insects with a vat of water in a cone with downward pointed hairs.
Definition
pitcher plants (Sarracenia)
Term
a flower that develops with only sepals, petals, and carpels is?
Definition
incomplete and imperfect
Term
if a long-day plant was flashed with a light at night it would?
Definition
have no effect on flowering
Term
Arrange from largest to smallest.
Basidiocarp, basidium, basidiospore, mycelium, gill
Definition
Mycelium, basidiocarp, gill, basidium, basidiospore
Term
what is the best explanation of why the DNA of wolves and dogs has a high degree of homology?
Definition
dogs and wolves shared a recent common ancestor
Term
tests and thread-like pseudopodia that preform phagocytosis are characteristics of which group?
Definition
Rhizaria
Term
members of phylum Anthophyla have gametophytes with cells that are?
Definition
1N
Term
a seed that is primarily adapted for dispersal and not for infecting host plant tissues should be?
Definition
nutritious
Term
what tissue moves sugar from the roots to the leaves
Definition
Phloem
Term
a plant with parallel leaf veins and parts in multiples of three is a?
Definition
monocot
Term
which group contains the organism Trypanosoma, that causes african sleeping sickness?
Definition
Discicristata
Term
which pair of protists and characteristic is mismatched?
Definition
ciliates - red tide organisms
Term
a seed contains only the developing embryo and?
Definition
2N cells from the sporophyte that give rise to the female gametophyte. (possibly 1N cells from the female gametophyte, or 3N endosperm cells )
Term
in most fungi, karyogamy does not immediately follow plasmogamy, which?
Definition
results in heterokaryotic or dikaryotic cells
Term
this phylum is vascular, cone-bearing seed plants, has the most species, have needle-shaped leaves, thick cuticles and adapted to dry conditions.
Definition
Coniferophyta
Term
you are studying members of the Kingdom Fungi. which is the best out group for the study.
Definition
a fish
Term
what is the main force by which most water within xylem vessels moves towards the top of a tree?
Definition
evaporation of water through stoma
Term
this phylum has true leaves, but only have a single vein of vascular tissue called microphylls as opposed to megaphylls.
Definition
Lycophyta
Term
if you see a large flower that smells like rotting meat it is pollinated by?
Definition
flies
Term
this phylum has true leaves, but only have a single vein of vascular tissue called microphylls as opposed to megaphylls.
Definition
Lycophyta
Term
if you see a large flower that smells like rotting meat it is pollinated by?
Definition
flies
Term
if you want to decrease the water retention of loamy soil, you should do what?
Definition
increase the number of sand particles in the soil
Term
sperm cells in gymnosperms are produced by?
Definition
mitosis of the 1N cells of a pollen grain
Term
where and by what process are sperm produced in plants?
Definition
mitosis in male gametophytes
Term
in seed plants what generation is dominant?
Definition
diploid sporophyte
Term
a water molecule could move through a plant from roots to leaf and pass through a living cell only once. where would this living cell be?
Definition
the endodermis
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