Study Guides (248,145)
Canada (121,341)
BIOL 111 (52)
Final

Lab 1 - Exam Review (Procedures)

4 Pages
124 Views
Unlock Document

Department
Biology (Sci)
Course
BIOL 111
Professor
Suzanne Gray
Semester
Fall

Description
LAB 1: The Microscope and Experimental Design Microscope: Phytoplankton: microscopic algae  Become more abundant when exposed to higher nutrient levels  Enhanced phytoplankton growth in a lack can have many negative consequences Microcosm: miniature model system Key principles of experimental design are: 1. Develop a hypothesis a. Tentative explanation for a well framed question 2. Designing an experiment with controls a. Untreated microcosm 3. Designing an experiment with replication 4. Randomizing treatments Daily Care of Microscope: 1. Wipe each lens with a Kimwipe 2. Turn off illumination and unplug cord Low Power: 3.2x objective (brown band lens) Total Magnification: magnification of eyepiece x magnification of objective x magnification of binocular tube Newsprint: letters appear upside down and backwards  Move in the direction opposite than the actual movement of the slide  Fibers that make up the paper are from wood Wet mount: 1. Drop of water 2. Place cover slide 3. No bubbles Optical section: single plane of focus in an object Plant and Animal Cells Cells contain DNA, organelles and cytoplasm which are surround by a cell membrane (plants and fungi have a cell wall) Protozoans are unicellular, while plants and animals are multicellular  Multicellular; organized into different tissues: groups of cells that function together LAB 1: The Microscope and Experimental Design  Tissues may further be grouped in a structural and functional unit called organ (group of organs working together is an organ system) Elodea Leaf  How many layers of cells? 2 layers  Uniform in size? One layer is larger than the other (smaller cells on top)  Thorn cells: project outwards making close observation easy  Chloroplasts: visible green sacs  Cytoplasmic Streaming: movement with in the cell, cytoplasm continually moving  Iodine Solution: one drop on the edge of the coverslide  Pyrenoids (starch containing bodies) inside the chloroplast can be see
More Less

Related notes for BIOL 111

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit