Paramecium (Protist)
Paramecium is a group of unicellular ciliate protozoa ranging from 50 to 350 μm in length. Simple cilia cover the body, which allow the cell to move with a synchronous motion ­ like a caterpillar. There is also a deep oral groove containing inconspicuous tongue­like compound oral cilia (as found in other peniculids) used to draw food inside. They generally feed on bacteria and other small cells, making them heterotrophs. Osmoregulation is carried out by a pair of contractile vacuoles, which actively expel water from the cell absorbed by osmosis from their surroundings. They are relatively large protists and can easily be seen with a medium­power microscope.
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Biology
Thursday/Friday September 6/7, 2012
1. Organism of the Day: Paramecium 2. Review Homework ­10
3. Notes ­10
4. Field Trip ­50
5. Pond Water Lab ­30
Announcements
Pay the $15 class fee to Sarah Spray in the Main office.
Due Today: Finish defining life and 5 Kingdom Basics.
Due Monday: Pond Water Lab and read 3.1 from ML Biology textbook and answer questions 1 ­ 3.
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Review Homework
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Ecology Key Terms
Food Chain: Is a series of steps in which organisms transfer energy by eating and being eaten.
Food Web: In an ecosystem feeding is more complicated because one animal can often eat more than one kind of food.
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Ecology Key Terms
Draw pictures:)
Ecology: Is the scientific study of interactions among organisms and between organisms and their physical environment. Interactions within the biosphere produce a web of interdependence between organisms.
Biotic Factors: The biological influences on organisms are called biotic factors. In other words, a biotic factor is any living part of the environment with which an organism might interact, including animals, plants, mushrooms, and bacteria. Think: what could be a biotic factor for the wolves in Yellowstone?
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Abiotic Factors: Physical components of an ecosystem. More specifically, an abiotic factor is any nonliving part of the environment, such as sunlight, heat, percipitation, humidity, wind, soil type, etc. Example: A bullfrog could be affected by abiotic factors such as water availability, temperature, and humidity. Think: what could be an abiotic factor for the wolves in Yellowstone?
Autotrophs (Primary Producers): Use energy from the sun (or chemical energy source) to produce chemical energy via photosynthesis. This energy is often stored in sugars and is made available to other organisms when eaten. Heterotrophs (Consumers): Must acquire energy by eating other organisms. Can be classified as carnivores, herbivores, scavengers, omnivores, decomposers, and detritivores. Think: How should a wolf be classified?
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Ecology: Study of how organisms interact with each other and their environment.
1. Organisms occupy a specific niche ­ ex. Paramecium 2. Biotic and abiotic factors ­ ex. Pond
3. Nutrient cycling ­ ex. Pond
4. Interactions between organisms ­ Food chain
5. Changes occur ­Season
­Succession 8
Field trip guidelines
Bring a notebook, pencil/pen ­individual
Bring GLX interface with temperature probe, a yardstick as a group
Walk as a class to Sportsman Club Pond.
Record notes on the following:
1. Number and types of organisms
2. Interactions between organisms that you SEE!
3. Interactions between organisms and their environment
4. Record Quantitative data via observations and GLX probe.
5. Record Qualitative data via obseravtions.
6. Think about how this environment changes with the seasons!
7. Be responsible.
8. Have FUN exploring nature!
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Period 3
Group 1
Group 5
Matthew D
Bowman
Jessica C
Markowitz
Casey A
Brink
Cristen H
McCann
Ana M
Bucy
Bryce A
Miller
Sophie K
Carson
Talbot N
Miller
Group 2
Group 6
Cassandra R
Christean
Truman H
Miller
Kamryn H
Coryell
Hannah M
Pratt
Lauren M
Cummings
Albert C
Ragsdale
Connor W
Dalton
Cole K
Schardein
Group 3
Group 7
Carter J
Daniels
Conner T
Vacca
Alyssa L
James
Christian M
VanWagner
Ciaran M
Krantz
Lauren T
Vchulek
Elizabeth N
Viele
Group 4
Group 8
Caroline T
Lant
Karen E
Ware
Alexander W
Larsen
Finnian A
Weappa­
Mickelson
Joseph S
Lee
Lindsay B
Wienkers
Britt P
Lindquist
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Period 5
Group 5
Group 1
Natalie H
Allen
Chase E
Lehotsky
Tara N
Bieber
Ciana L
Maasen
Lucas
Burzycki
Sienna M
Mander
Myron E
Butler
Glynnis R
Marcus
Group 6
Group 2
Aidan Z
Carlisle
Angeline P
Mead
Quinn H
Dassel
Morgan L
Merillat
Lucinda M
DeBolt
Gregory G
Millican
Zachary M
Dinniman
Erik P
Nimb
Group 7
Group 3
Forrest L
Englin
Sonia K
Olson
Isabella A
Frawley
Avery
Schuelke
Rory L
Frieda
Georgia R
Seltzer
Jake M
Sullivan
Group 8
Group 4
Oliver
Godfrey
Shelby W
Sundquist
Jade C
Greer
Parker R
Taylor
Keivan
Kehlhofer
Hayden S
Tutty
Kailyn J
Wise
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Period 6
Group 1
Group 5
Nathan A
Agne
Shaine E
McMahon
Natalie T
Beatie
Alexandra R
McWilliams
Madeleine J
Cole
Caitlyn P
Munter
Annie E
Comstock
Natalya C
Niehaus
Group 2
Group 6
Elanor S
Davidson
Larissa N
Nowjack
Lars N
Erickson
Caleb J
Olalia
David
Goon
Klaudia
Prodani
Bryce T
Hamilton
Garret W
Riely
Group 3
Group 7
Robert M
Hobbs
Mira I
Rosenkotz
Isaac J
Holloway
Blake A
Swanson
Ryan B
Ieropoli
Brandon J
Swindle
Reed T
Thomas
Group 4
Group 8
Abigail L
Leigh
Kathryn P
Tibbens
Cole A
Magrini
Chaney A
Weaver
Erin A
McGee
Lucas F
Weyand
Andrew B
Yalung
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Name ________________________ Group # ______ Period ______ Date _______________ _____/14 Points PondWaterLab
This investigation is designed to help you practice making observations, focusing a light microscope on living organisms, preparing wet mount slides, and drawing aquatic organisms found in Sportsman Club Pond water. Take special note of the characteristic of life. Study and know the part of the microscope (see your diagram). Quiz your lab partners on the microscope parts.
1. Qualitative data: Describe what you see at Sportsman Club Pond. What color is the pond water? What do you e?
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see growing in and around the pond? What do you hear? What do you smell? 2. Quantitative data: Use your GLX probe to measure the pH and the temperature of the water: pH ___________ Temperature ______________. 3. Magnification: Knowing that the power of the eyepiece is _________, determine the following magnifications:
Low power = _______ x _______ = _______ Medium power = _______ x _______ = _______ High power = _______ x _______ = _______ 4. Wet mount: Be sure that the water is contained under the cover slip (none is slopping out) and that there are as few bubbles as possible. Avoid large organisms at this time. Proceed to the pond water chart (see reverse) and draw 3 pictures in the circles: one at low, one at medium, and the last at high magnification. Repeat again with a different sample and label as wet mount slides.
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Depression slide: Find a larger organism and prepare a depression slide mount and draw a detailed picture of your organism as you did with the wet mount.
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Hypothesis : How do you think the pond will look in the winter? What differences/similarities would you see in the samples you examined through the microscope? Be specific and explain your reasoning. ________________________________________________________________________________________
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Name ________________________ Group # ______ Period ______ Date _______________ NOTE: In sketching organisms, be as detailed as possible. Scientific drawings use pencil, ruler, label features, the power of magnification, and include a title and the scale.
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Exit Question
If the eyepiece magnification is 10x and the total magnification is 500x, then what is the magnification of the objective lense?
Reminders
Pay the $15 class fee to Sarah Spray in the Main office.
Due Monday: Pond Water Lab and read 3.1 from ML Biology textbook and answer questions 1 ­ 3.
Periods 3/5: Please stack chairs on your way out.
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Attachments
Web Quest Mental Health.doc