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52 Cards in this Set

  • Front
  • Back
meters in one micrometer?
1 micrometer = 1.0E-6 meters
Penalty for 2 unexcused absences?
-10 on final grade
3 unexcused absences?
failing grade for the class
Students must wear what for lab?
Close-toed shoes and long pants and shirts with sleeves
3 things disposed of in the broken glass container?
pipet, wet mounts, broken glass
light microscope that has two sets of lenses and is used for the observation of small specimens. Can magnify a specimen up to 1000 times
Compound microscope
Light microscope that is used for the observation or manipulation of larger or whole specimens at low magnification. Produces a 3D image of the specimen
Dissecting microscope
Used to examine the structure by scanning the specimen with a beam of electrons
Scanning Electron Microscope
Used to examine inner structure by passing electrons through a section of the specimen
Transmission electron microscope
2 kinds of electron microscopes?
Scanning and transmission
Calculate the total magnification for a compound microscope with a 10X ocular 30X objective lens
40X
What does parfocal mean?
When an image is focused at scanning power, it will also be in focus at low and high power
What allows plants to regenerate new tissues, organs, or even whole plants?
Totipotency
This chemical promotes shoot development
Cytokinins
The chemical promotes root development
auxins
The actual process by which the excised plant tissue produces new tissues is called
organogenesis
Name the two shapes of calcium oxalate crystals
raphides, druses
Steps in micropropagation
Establishment (step done in class), Multiplication, Rooting, Acclimation
Name one plant that contains calcium oxalate crystals
aloe, banana, pineapple, philodendrons, dumbcane
Bioplastic is more economically friendsly and degrades much faster than traditional plastic (True/False)
True
Idioblasts are specialized cells that causes cell damage to the one ingesting them (True/False)
True
After the completion of S phase, the number of chromosomes is ___
doubled
What causes cancer?
Oncogenes
During anaphase, centromeres use spindle fibers to pull apart sister chromatids (True/False)
True
Nuclear membrane degrades, spindle fibers being to form and chromosomes condense during what phase?
Prophase
What is the difference between cytokinesis in plant cells and animal cells?
Animal cells have a cleavage furrow and plant cells have a cell wall
Name the mitotic phases in order
Interphase, Prophase, Metaphase, Anaphase, Telophase
Steps to the scientific method?
Observation, Question, Hypothesis, Prediction, Experiment
Standardized variable across all groups
controlled
Variable manipulated by the experimenter
Independent
Variable is the factor that is being measured/tested
Dependent
Discrete variables are measured quantitatively and use logical order and numbers (True/False)
False
What section of a scientific paper contains the hypothesis?
Introduction
What section contains tables and figures?
Results
Where are the meanings of the experiment evaluated?
Discussion
the pairing of homologous chromosomes into tetrads
Synapsis
set of 2 pairs of homologous chromosomes
tetrad
random alignment
Independent assortment
Natural process by which the organisms with favorable traits (best adapted) are more likely to survive and reproduce than those that do not
Natural selection
Requirements for Natural Selection?
1. genetic variation
2. Variation must be heritable.
3.Variants have increased fitness – they survive and reproduce at a higher rate than non-variants
Random fluctuations in the frequency of a character in a small, isolated population
Genetic Drift
An error during reproduction… a sudden structural change within a gene (or chromosome) of an organism
Results in the creation of a new character or trait not found in the parents
Mutation
, Crossing Over occurs b/w adjacent nonsister chromatids  exchange DNA
Prophase I
Tetrads line up along equator
Metaphase I
when 2 homologous chromosomes move to the same pole during meiosis (anaphase I)
NONDISJUNCTION
Nondisjunction disorders
Down Syndrome (trisomy 21), Tuner Syndrome (X), Supermales (XYY)
Microscope that does NOT give an internal image
Scanning Electron Microscope
Finding total magnification?
Objective Lens × Ocular lens = Total Magnification
The 3 Shapes of Bacteria?
Spirilla- spiral
Bacilli- rod
Coccus- spherical
plantlets are transferred from sterile medium to soil & allowed to adjust to more natural environmental conditions
Acclimatization
developing shoots are transferred to a new growth medium containing auxin to stimulate root formation
Rooting
Made from plant starch, cellulose, vegetable oils, or microorganisms
Most are biodegradable
Bioplastics