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BIOL 111 Study Guide - Final Guide: Stoma, Lignin, Amphiuma

Biology (Sci)
Course Code
BIOL 111
Suzanne Gray
Study Guide

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LAB 1: The Microscope and Experimental Design
Phytoplankton: microscopic algae
Become more abundant when exposed to higher nutrient levels
Enhanced phytoplankton growth in a lack can have many negative
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
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