[Biology 1002B] - Final Exam Guide - Ultimate 278 pages long Study Guide!

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29 Mar 2017
Department
Professor
Western
Biology 1002B
FINAL EXAM
STUDY GUIDE
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Tuesday, January 10, 2017
LEC #1- Chlamydomonas
Chlamydomonas: a model system
-why are porks’ cells so much smaller than euks?
-what makes it a good model system?
it has a flagella, gigantic chloroplast, which makes it typically for eukaryotic cell
10x the size of bacterium
it has traits like a plant
it’s an eukaryote w/ chloroplasts
plants don’t have eyes, but chlamydomonas has an eye, called eyespot. Allows it to
sense its environment
eyespot info is transferred to flagella, which allows it to moves towards light,
allowing it to photosynthesize
single cellular, but similar to other multicellular green algae.
-ability to sense light environment & adjust, is an animal trait
-the eyespot sits in the chloroplast, but has nothing to do with photosynthesis
Basic Cell Structure of Chlamydomonas
-nucleus
-chloroplast
-endoplasmic reticulum
-golgi body
-mitochondria (no organisms have only chloroplast, but no mitochondria. Think
package deal)
-ribosomes
-** know where each organelle takes place in a chalmy.
!1
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Tuesday, January 10, 2017
Phylogeny of Chalmy.
-plant lineage, since it has a chloroplast
-but diverged pretty early from plants, into the branch that leads to trees
Life cycle
-can be diploid & haploid
-mostly exists as haploid cell
-divides asexually, aka zoospores.
-gametes come in + type and - type, usually driven by environmental stress
-in normal environments, they’re haploid
-advantages of being haploid?
-
!2
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