UofA - Bio 108 Lab Exam Questions With Correct Answers

UofA - Bio 108 Lab Exam Questions With
Correct Answers


Aseptic Technique - CORRECT ANSWER✔✔-Method designed to prevent
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contamination from microorganisms.
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Arabidopsis thaliana - CORRECT ANSWER✔✔-In lab we tested the
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affects of phosphate on this organism. It is small, requires little space,
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and is easy to grow.
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Ceratopteris sp. - CORRECT ANSWER✔✔-A homosporous fern with two
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distinct phases to its life cycle. Has a simple haploid gametophyte and
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complex diploid sporophyte. Its spores germinated into gametophytes.
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Compound Microscope - CORRECT ANSWER✔✔-3 lens
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systems(condenser, objective, ocular). | |




Calculate magnification of drawing - CORRECT ANSWER✔✔-size of
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drawing(ruler) / size of object(epu) | | | |

,Dichotomous key - CORRECT ANSWER✔✔-A dichotomous key is a tool
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that allows the user to determine the identity of items in the natural
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world, such as trees, wildflowers, mammals, reptiles, rocks, etc.
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Dissecting Microscope - CORRECT ANSWER✔✔-Two eyepieces and two
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objectives. Provides a 3 dimensional view. Lower magnification level
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compared to a compound microscope. | | | |




Species - CORRECT ANSWER✔✔-Group of organisms capable of
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interbreeding


Speciation - CORRECT ANSWER✔✔-Event which produces two or more
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separate species from one lineage. | | | |




The 4 mechanisms of evolution - CORRECT ANSWER✔✔-Mutation, gene
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flow, genetic drift, and natural selection.
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Internal node - CORRECT ANSWER✔✔-Point in a phylogenetic tree were
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|a branch splits up
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Terminal node - CORRECT ANSWER✔✔-End of the branch
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Single-base substitution - CORRECT ANSWER✔✔-When one nucleotide
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base replaces another
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,Molecular clock - CORRECT ANSWER✔✔-The number of differences
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between species can reveal the mutation rate.
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Plant systems for acquiring resources - CORRECT ANSWER✔✔-
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Root(water and nutrients) and shoot(Co2 and light) systems. Shoot
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system is everything above ground.
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Vascular tissue - CORRECT ANSWER✔✔-Complex conducting tissue
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which runs throughout the entire plant, formed of more than one cell
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type, found in vascular plants. The primary components are xylem and
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phloem.


Function of xylem and phloem - CORRECT ANSWER✔✔-Transport fluid
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and nutrients internally.
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Xylem: Transport water up
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Phloem: transport sugars from photosynthesis down
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Dermal tissue - CORRECT ANSWER✔✔-outer layer of cells covering
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plant. Composed of epidermis and the cuticle. May also have
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trichomes(small hairs) |

, Ground tissue - CORRECT ANSWER✔✔-Fills space between epidermis
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and vascular tissue. May contain specialized cells for support, storage,
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protection, or photosynthesis. | |




Helianthus sp. - CORRECT ANSWER✔✔-A sunflower seedling
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Petiole - CORRECT ANSWER✔✔-Attaches blade of lead to the stem.
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Point of attachment called node.
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Patterns of leaf arrangement. - CORRECT ANSWER✔✔-Alternate(spiral)
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Opposite(pairs)


Whorled(3 or more at same node) | | | | |




Types of leafs - CORRECT ANSWER✔✔-Simple(single leaf)
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Compound(divided into leaflets) | |




Root systems - CORRECT ANSWER✔✔-Radicle/primary( main root sent
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into ground from which lateral roots branch off)
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