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BIO 206L: Exercise 7 Lab AnalysisPlease answer the following questions during lab. Keep in mind that you need to work independently. Write incomplete sentences, using proper grammar and spelling when an explanation is required. Be complete yet concise in your answers. Submit your report as a pdf file on Canvasbefore the beginning of the next lab.1) In section 7.1 you observed and took digital images of prepared slides of plant tissues. Use these images to describe how you can distinguishthe following specimens (i.e.what sets them apart from one another): algae, bryophytes, pteridophytes, gymnosperms and angiosperms. Algaeare photosynthetic protists that can be uni- or multi-cellular.oEuglena, 40x objectiveoDistinguishing features:aquaticphotosyntheticdo not contain xylem or phloemdo not have roots, leaves, or flowersBryophytesare non-vascular plants that live on land but lack some of the terrestrial adaptations of vascular plants; examples are mosses, liverworts, or hornworts.oDistinguishing features:photosyntheticusually located in damp and low-light areasdo not contain xylem or phloemdo not have flowers or true rootsproduce sporesPteridophytesare vascular plants that reproduce by releasing spores, such as ferns.oDistinguishing features:photosynthetichave roots, stems, and leavescontain xylem and phloemproduce sporesExercise 7 Page 1 of 10
Exercise 7 Page 2 of 10
Gymnospermsare vascular plants that bear “naked” seeds (seeds not enclosed in protective chambers).ooJuniperoDistinguishing features:photosynthetichave leaves that usually appear needle-like and stay green year-long have roots and stems contain xylem and phloemproduce (“naked”) seeds, like pine conesAngiospermsare flowering plants that form seeds inside protective chambers (ovaries).oDistinguishing features:photosynthetichave leaves that are usually broad, change color, and die during autumnhave roots and stemscontain xylem and phloemproduce protected seedsoCan be monocot:Carrion Flower Root, 4x objectiveoOr, can be eudicot:Exercise 7 Page 3 of 10
Dicot Root, 4x objectiveReece JB, Urry LA, Cain ML, Wasserman SA, Minorsky PV, Jackson RB. Campbell Biology. 9th ed. San Francisco, CA: Benjamin Cummings; 2012.