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Protist Lab

Protist Lab

 

Purpose: To find out what protists look like under magnification.

 

Hypothesis: If I use the microscope to magnify the protist slides, then I will be able to see what various protists look like under close observation.

Materials: Compound Microscope

Amoeba Slide

Paramecium Slide

Euglena Slide

Bacteria Slide

 

Procedures: 1. Place the amoeba slide on the stage of the microscope.

2. Then, adjust the slide so that it is focused under low power objective.

Punnett Squares for all Traits

Punnett Squares for all Traits

(Marys genotype is always on the top and Tims genotype is always on the left)

 

Bb

Bb

Bb

Bb

XX

XX

XY

XY

 

 

 

Rr

Rr

rr

rr

tt

tt

tt

tt

Ff

ff

Ff

ff

Pp

Pp

pp

Pp

Ss

Ss

ss

ss

Ee

ee

Ee

ee

packaging

September 22, 2003, Period 3, Group 3

Procedure:

4. The reasons for this packaging is that it is airtight and it appealing to the eye. The attractive aluminum foil and the airtight canister package are brilliant. Also, with the plastic bag, there is extra sealing.

 

 

Questions:

 

1.     Yes the package is airtight. It has a film cartridge as the first layer and then a plastic bag as the second layer.

2.     Yes the package retains moisture because both containers are sealed and fastened. No moisture could get through both layers of packaging.

Friedel-Crafts Acylation of Anisole

Friedel-Crafts Acylation of Anisole

Abstract:

p-Methoxybenzophenone was synthesized from anisole and benzoyl chloride under Friedel-Crafts Acylation conditions in a mixture of aluminum chloride and dichloromethane. A 67.36% crude yield of 3.56 grams with a melting point of 46-55oC was obtained from a theoretical 5.28 grams. Recrystallization of 1.15 grams crude cyclohexane resulted in a .60 gram 52.17% recovery with a purified melting point of 57-61oC.

 

Introduction:

Osmosis Lab

Osmosis Lab

 

Purpose: To find out how osmosis affects the cells of a carrot.

 

Hypothesis: If I place a carrot in water and another in a salt solution, then I will be able to see how osmosis affects the cells of a carrot.

Materials: 2 Carrots

String

2 (250 mL) Beakers

Water

Teaspoon

Salt

 

Procedures: 1.Fill two beakers half full with water.

2. Then, add two teaspoons of salt to one beaker.

Phytophthora infestans, an important plant pathogen and causative agent of the great famine in Ireland (1845), belongs to the

Per.1

3/23/03

 

Great Potato Famine of Ireland

Potato Late Blight

 

 

 


Disease: The disease, potato late blight, is caused by a fungus-like organism, Phytophthora infestans that causes disease to potatoes and tomatoes. Entire potato crops can rot in a field or in storage because of the late blight infection. It was responsible for the Irish Potato Famine in the 1840’s that resulted in about one million deaths and the emigration of about 1.5 million people to other parts of the world. Phytophthora infestans is a pathogen (agent that causes disease) of potatoes wherever and is usually not a problem unless the weather is unusually cool and wet. The water is necessary for the spores to swim to infect the leaves of other potatoes.

PCR is short for Polymerase Chain Reaction

PCR is short for Polymerase Chain Reaction. It is a recently developed procedure used to replicate DNA. PCR requires a template double stranded DNA, Taq polymerase, MgCl2 Cofactor, ddH2O, Primers, and Oglionucleotides to be present. PCR usually runs 30 cycles denaturation at 94oC for 1 minute annealing of primer to template at 50oC for 1 minute and elongation at 72oC for 1 minute.

 

Analysis of Analgesics by Thin Layer Chromatography

Analysis of Analgesics by Thin Layer Chromatography

Abstract:

The chemical compositions of four analgesics (Anacin, Excedrin, Nuprin, and Tylenol) were determined by thin layer chromatography in this experiment using ethyl acetate as both the solvent and the elluent. Anacin, Excedrin, Nuprin, and Tylenol were pulverized, dissolved in ethyl acetate, and run plated on a silicon gel to determine their Rf factors. These Rf factors were then compared to the Rf factors of the pure standard samples: acetaminophen, aspirin, caffeine, and ibuprofen. The TLC plates indicated that Anacin contains both aspirin and caffeine; Excedrin contains acetaminophen, aspirin, and caffeine; Nuprin contains only ibuprofen; and Tylenol contains only acetaminophen.

Joe Anzalone

Joe Anzalone Part 2

Question 1   Part A: Human v. Neanderthal

Student 3 (Wash. College) v. Neanderthal W. Germ = 77 differences at 450 bp

Normalized value = .171111

Student 9 (Wash. College) v. Neanderthal W. Germ = 65 differences at 450 bp

Normalized value = .144444

Student 6 (Saratoga HS) v. Neanderthal W. Germ = 97 differences at 450 bp

Normalized value = .215555

Student 7 (Saratoga HS) v. Neanderthal W. Germ = 105 differences at 450 bp

Normalized value = .233333

All animals develop from a single fertilized cell into a individual organism with the help of HOM genes in invertebrates and H