Category: My Classroom Material
Animal Symmetry and Phyla
Annelid
Annelids
Segmented Worms
All Materials © Cmassengale
Phylum Annelida
Characteristics
- Includes duster worms, earthworms, & leeches
- Abundant in all habitats
- Have a true coelom fully lined with mesoderm
- Body divided into external segments called metameres (metamerism)
- Metameres correspond to internal segments
- Have a one-way digestive system with a mouth & anus
- Well developed brain & sensory organs
- Fluid-filled coelom provides hydrostatic skeleton
- Most have external bristles or setae that aid movement
- Setae may be modified into flashy appendages called parapodia
PARAPODIA
- Includes 3 classes based on number of setae & presence or absence of parapodia
- Classes of segmented worms — Oligochaeta, Polychaeta, & Hirudenia
Class Oligochaeta
Characteristics
- Have no parapodia & few setae
- Includes earthworms
EARTHWORM
- Bodies may have over 100 metameres
- Internal partitions called septa
- Distinct anterior & posterior ends
- Cephalization (head with sense organs) shows specialization for burrowing
- Have both circular & longitudinal muscles for movement
- Have external, saddle-shaped structure called clitellum that forms a cocoon containing eggs & sperm
- Prostomium or lip digs through soil as earthworm feeds on organic matter
- Pharynx is a muscular organ behind the mouth to help suck in food
- Food temporarily stored in crop, ground in gizzard, and digested & absorbed in intestine
- Wastes called castings pass out through anus
- Closed circulatory system with 5 pairs of aortic arches or hearts
- Dorsal blood vessel carries blood posteriorly to cells & ventral blood vessel returns blood anteriorly
- Secrete mucus to keep skin moist so oxygen will dissolve & diffuse into body
- Long tubules called nephridia filter wastes from blood & excrete it through pores
- Simple brain, no eyes, & dorsal and ventral nerve cords
- Sensitive to light, touch, moisture, chemicals, temperature, & vibrations
- Hermaphrodites exchange sperm & cross-fertilize
- Sperm sacs store the worm’s own sperm & seminal receptacles store exchanged sperm
Class Hirudenia
Characteristics
- No setae or parapodia
- Includes leeches
- Have anterior & posterior suckers for attachment
LEECH
- Some suck blood from hosts, while others are scavengers or predators
- Mouth’s of blood-sucking leeches with chitinous teeth & secrete anticoagulant
- Found in freshwater
- Flattened dorso-ventrally
- Hermaphrodites that cross-fertilize
Class Polychaeta
Characteristics
- Marine
- Includes sandworms & clamworms
- Have paddle-like parapodia to move
- Take in oxygen through parapodia
- Some are free-swimming predators with strong jaws to feed on small animals
- Many live commensally with sponges, mollusks, & echinoderms
- Well-developed head with antenna & specialized mouthparts
SANDWORM
Antibiotic Resistant Lab
Antibiotic resistance of bacteria
Procedure Using a sterile loop, pick an isolated colony from you bacterial plate. Try to find one that grew well but is all by itself. Move the colony (don’t scoop up the agar) to a new plate. 
Using a moist, sterile, cotton swab, spread the bacteria around on the plate.
The goal is to get an complete, even, coverage of bacterial growth on the plate (called a “lawn”). Remember to open the plate only minimally, using the lid as an “umbrella” to prevent contamination (see image below). Label each plate on the bottom (agar contaning side) and store it for examination during next week’s lab.Each new prepared plate will receive four paper discs containing antibiotics. We will be using several different types of Antibiotics and/or antimicrobials.
(please fill in which antibiotics you used below)
- 1
- 2
- 3
- 4
The antibiotic discs come in a little tube-like dispenser. To remove the discs take a sterile toothpick
and push out a disc into your plate. Use the toothpick to gently press the disc onto the agar. Once you have added the five antibiotic discs to your plates, make sure the plates are labelled and store them in the back of the lab until next week.
If the bacteria are susceptible to the antibiotic a zone of inhibited growth will be evident next week. Measuring the size of this zone is a relative indication of the effect of the antibiotic on the particular bacteria.
Bacteria possess several characteristics that enable them to become resistant to antimicrobial drugs:
- Asexual reproduction
- Short generation times
- High mutation rates
Some Information on Antibiotics
Questions –
1. Name two ways (1. and 2. ) that common human practices towards antimicrobials aids bacteria in becoming resistant.
2. Name two reasons your Physician will perform cultures such as the ones you have done in this lab.
4. How are materials are collected for cultures?
5. Why is neccesary to use sterile technique when obtaining cultures?
Semester I Calendar 2001
AP Calendar 2006
| week | topics | text chapters/activities | supplemental readings/URLs |
| see you in late August!!
week 1 Aug 24-26 |
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ch 1, 50-55-due Aug. 24-your first day back!!**check study guide (SG) and question set (QS)
powers of ten see the size of everything! ch 2
handouts/AP website |
scientific method -The Biology Project size and biology -The Biology Project
dissociation of water acid-base explained water movement click on animations water movement ions, simulations of pH solutions
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| week | topics | text chapters/activities | supplemental readings/URLs |
| week 2
Aug 29-Sept 2 |
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ch 3
BBC guru condensation and structure of molecules
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central dogma animation
molecules -animated (rotate) dehydration synthesis -animation the biological basis of life for condensation |
| week 3
Sept 6-9 Sept 5 off-Labor Day |
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ch 6 | interactives catalysis, enzyme inhibition
BBC guru this is the enzyme site we used in class
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| week 4
CAMP KERN (but you are responsible for everything!!) Sept 12-16 |
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population clock population estimation
climate graphs/biomes dissolved O2 lab
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Nova-The World in Balance Human Numbers/Time The Earth in Peril Be a Demographer Population Trend quiz
nitrogen cycle -animation
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| week 5
Sept 19-23
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interesting ecology simulations, including: biomass succession
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| week | topics | text chapters/activities | supplemental readings/URLs |
| week 6
Sept 26- 30
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ch 20 |
burgess shale -resources
early life -Burgess Shale |
| week 7
Oct 3-7 |
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ch 4
ch 7
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microscopy -CellsAlive
eukaryotic vs pro, quizzes on plant and animal cell show big is? (cell biology) -CellsAlive binary fission movie lysogenic cycle -animation |
| week 8
Oct 10-14 Oct 11 off -teacher inservice |
|
ch 4
these are the links that we used in class- virtual cell -virtual cell textbook cell comparison -check yourself the cell -ThinkQuest
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inside the cell -NIH/NIGMS
cell parts -cells.de link of the month drop/drag organelles plant and animal cells -structure and function problem sets and tutuorials -The Biology Project, includes: studying cells tutorial and cytoskeleton among others-best site cell similarity -GeoCities-fun stuff click on animations -HHMI |
| week 9
Oct 17-21 Oct 22-end of Q1 |
|
ch 5
membrane structure -simple pathways in and out of the cell antibiotic resistance |
drop/drag membrane ZeroBio
membrane structure power point tutorial-advanced cell signaling Access Excellence osmosis tutorial Cornell BioG101-104 osmosis simulation Colorado osmosis animation Oklahoma State osmotic pressure sanger reverse osmosis gearfiltration ion channels (cell biology, myocyte) CellsAlive membrane animation HHMI cell transport animation Na/K pump Brookscole membrane tutorial The Biology Project |
| week 10
Oct 24-28
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ch 7
not active…. cell respiration -tutorial overview -respiration electron transport chain and ATP synthesis -movies glycolysis and fermentation -excellent molecular animations |
glucose catabolism U. Alberta-overview
intro to metabolism animation metabolic process location animation citric acid cycle animation oxydative phosphorylation electron transport chain animation cellular respiration -Kimball’s pages cellular respiration -showing molecular models glycolysis explained in animations oxydative phosphorylation explained inanimations |
| week | topics | text chapters/ activities | supplemental readings/URLs |
| week 11
Oct 31-Nov 4
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ch 8
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photosynthesis light rxn -The Biology Project
photosynthesis carbo formation -The Biology Project photosynthesis sites -Arizona State University photosynthesis animation oxygenic photosynthesis animation U. Alberta photosynthesis -Maricopa bio181
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| week 12
Nov 7-11
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ch 9 Online Onion Tips -The biology Project more animations -BSC Courseware |
cell cycle -The Biology Project
cell cycle animation, myocyctes, cytoskeleton, apoptosis (cell biology, cell models, cell gallery) -CellsAlive mitosis review -Nebraska Wesleyan interactive mitosis (cell biology)-CellsAlive mitosis -The Biology Project modeling mitosis -Cornell BioG101-104 click either random or assignment…… mitosis/meiosis animations -About: homework help mitosis and meiosis tutorial -Cornell BioG101-104 meiosis vs mitosis -WGBH (PBS) cancer growth -WGBH (PBS) metastasis -animation |
| week 13
Nov 14-18
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ch 10, 15 |
mendelian genetics -The Biology Project
human karyotyping -The Biology Project genetics -University of Utah harlequin chromosomes -J. Kimball drop/drag genetic cross ZeroBio
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| week 14
Nov 21-22
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Nov 23-25 off Thanksgiving!
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ch 11
edu/genobc/animations/
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Central Dogma animation nucleic acids -The Biology Project Hershey/Chase -AccessExcellence DNA basics -The Biology Project DNA replication animation Cracking the code (PBS) DNA structure -subunit animation
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| week | topics | text chapters/ activities | supplemental readings/URLs |
| week 15
Nov 28-Dec 2
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transformation movie
translation animation ZeroBio protein synthesis animation Beginner’s Guide to Molecular Biology -Molecular Biology Notebook DNA from the Beginning -DNA from the Beginning |
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week 16 Dec 5-9
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ch 13, 16
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gene regulation -Indiana State University
RNA splicing -movie cloning animation developement -The Biology Project gene expression -The Biology Project gene expression in prokaryotes -The Biology Project signal transduction animation |
| week 17
Dec 12-16
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ch 14
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Blackett family -The Biology Project
DNA profiling -The Biology Project Western Blot -The Biology Project recombinant DNA -The Biology Project PCR animation human genome project -National Human Genome Research Institute bacterial genetics/recombinant DNA tutorial -Cornell BioG101-104 forensics -The Biology Project
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Dec 21 Winter Vacation starts at end of day
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ch 17 are yours for the break–Happy Holidays!! (you would be bored without this work…. |
End of First semester
| week | topics | text chapters/activities | supplemental readings/URLs |
| week 18
Jan 3-7
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ch 17–18
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dating techniques -Geology Labs on-line
Darwin’s life and works -Cal. State University, Dr. C. Urbanowicz population drift -simulation genetic drift -simulation |
| week 19
Jan 10-14
Jan 14-end of Sem I |
semester I final exam week
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AP sample exam |
| Semester II calendar 2005
home | AP Bio | Honors Bio | CP Bio | calendars | Visit the Lab
© Mariemont City Schools 2002, Halsall (05/23/06 )
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