ISB 200 exam #1 - 11/4 Accessory Pigments- pigments that...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
11/4 Accessory Pigments- pigments that absorbs across middle of visible light (carotenoids-reasons for fall colors in leaves!) more oxygen= more ozone Eukaryotic Cells: large to very large complex organelles: 1. nucleus-genetic material stored here 2. mitochondria- responsible for aerobic respiration, found in all cells, ATP gets made here, about the size of a prokaryotic cell, have own DNA used to regulate control of reproduction (they are bacteria) 3. chloroplasts- only found in plant-like cells, size of bacterial cell, have own DNA 5 kingdoms Prokaryotic monera- bacteria, cyanobacteria o eukaryotic, single celled Protista- single cells 1. Eukaryotic, multicellular Plantae- photosynthesis Animalia- ingestion Fungi- absorbtion
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
11/9 Ciliates: Predation Hippos- most dangerous animal in Africa Size can protect Surface to volume ratio Everything moving in or out of cell goes thru the cell membrane As cell size increases, surface area goes up by a square function while volume increases by a cube function Eventually there is not enough membrane area to support the volume 1. Ways to get bigger- pile cells up to get bigger Colonial growth forms Filaments- looks like a string of sausages, each a prokaryotic cell Sheets- stomatolites Clumps- clumps to spheres Spheres- spheres to proto-animals Complex Animals- worms Kidneys pump blood Hard parts
Background image of page 2
Exoskeletons and shells- bones on outside of body Endoskeletons- bones inside of body Both work with hinges ex: elbow Why skeletons? Protection Muscular efficiency- muscles contract only Cambrian “Explosion” Start seeing fossils Models Why? The Burgess Shale 11/14 2. Ciliates: Predation Surface to Volume Ratio Everything moving in or out of the cell goes through cell membrane As cell size increases, surface area goes up by a square function while volume increases by a cube function Eventually there is not enough membrane area to support the volume Certain amount of cell membrane to handle in/out needs
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Ways to get bigger: Pile cells up 1 cell can only get so big Colonial Growth Forms Colonial= cells stick to one another, larger entity Filaments Long strand of cells Like a pearl necklace Eat whole long thing, or leave it alone Works very well Helps in anti-predation defenses Sheets Stromatalites Cant gnaw at sheets because they have no teeth Eat whole thing or leave it alone Clumps Bigger, harder to eat Over 32 the cells on inside are kept away from oxygen, food sources, and places to dump extra carbon dioxide
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/18/2012 for the course ISB 200 taught by Professor Ralphtaggart during the Fall '09 term at Michigan State University.

Page1 / 17

ISB 200 exam #1 - 11/4 Accessory Pigments- pigments that...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online