Title- Protista Lab Concept- the concept of this lab was to explore what is in the pond water as living organisms and try to identify what it is. Some types of Protista are multi-cellular like giant kelp. Although they look much like plants‚ multi-cellular protists lack specialized tissues. Being eukaryotes‚ they have a membrane-bound true nucleus with linear chromosomes‚ and they have membrane-bound organelles. The kingdom Protista contains all eukaryotes that are not plants‚ animals‚ or fungi
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Catalase Lab Purpose: To observe the effects of hydrogen peroxide on living tissue and non-living materials‚ showing the presence or absence of catalase as observed by the presences of bubbles. Hypothesis: If we pour H2O2 on certain substances‚ the catalase will break down and bubbles will appear at the surface. Data table: Name | Time | Observation | Raw Potato | 1 min. 30 sec. | Slow reaction‚ barley any bubbles. | Raw Liver | 5 min. 30 sec. | Extremely fast reaction‚ very foamy‚ Big
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Hypothesis: For an increase in a normal force‚ there will be a corresponding increase in friction. Introduction: Force is usually connected with a push or pull exerted on an object. In this experiment‚ I am using a contact force‚ a force that exists from physical contact between two things. I am pulling the spring scale‚ which measure force in Newtons (kg x m/s2)‚ and then the block is moving. Different masses (kg)‚ or the measure of the resistance of an object to changes in its motion due
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The different methods of measuring acids and bases in a solution By Starsky Intro to Biology September 26‚ 2011 Lab Partners: Kristen‚ Tania and Betty Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best
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Alyssa Caparelli Organic Chemistry 12A Professor Alston October 28‚ 2014 Isolation of Chlorophyll and Carotenoid Pigments from Spinach Purpose The purpose of this experiment was to isolate ß-carotene‚ chlorophyll-A‚ and chlorophyll-B from spinach using column chromatography. Spinach was dehydrated using ethanol‚ and the pigments were extracted with dichloromethane. The spinach extracts were dried using CaCl2. Then‚ the solid pigments were run through a column using a non-polar solvent‚ hexane
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oxygen‚ carbon dioxide‚ helium‚ and lab gas. We took a Ziplock bag‚ and turned into a non-stretchy balloon‚ and filled with each gas and measured the apparent mass then calculated the actual mass‚ then find a ratio between the mass of oxygen and the other gasses. We tried to keep the pressure about the same each time so our calculations would be more accurate. We found out that the heaviest was carbon dioxide‚ and the lightest was helium. In fact‚ helium and lab gas had a density below 0. Anyways
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Celestial Geography I Emily Richarz PH090-04 Purpose: The purpose of this lab was to introduce us to star charts and how to use them to find stars‚ constellations and other bodies in the sky. Procedure: The instructor gave a brief but thorough lecture and demonstration on how to go about finding the answers on the worksheet. We then filled out the worksheet that cover finding stars and constellations using right ascension and declination in general and on specific dates‚ where constellations
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source. The slit was pointed towards the source‚ and the spectroscope was shifted until the spectrum was clearly visible. The appearance of the spectrum from the fluorescent light source was recorded. A discharge tube apparatus was retrieved from a lab cart for demonstration. A hydrogen discharge tube was inserted into the discharge tube apparatus with the spring loaded end first‚ followed by the non-spring loaded end. The discharge tube apparatus was plugged into the outlet. The hydrogen discharge
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Department of biology Faculty of Science and Mathematics Universiti Pendidikan Sultan Idris LABORATORY REPORT SBT 1013: INTRODUCTION TO BIOTECHNOLOGY Semester 4 Sessions 2013/2014 ID NUMBER AND NAME 1. SITI NURFATINI BINTI MOHAMAD ROSLAN (E20131007560) 2.NURHAFIZAH BINTI SAMSUDDIN (E20131007584) 3.MUNIRAH BINTI HARON (E20131007556) 4.NORSYAWANI BINTI SUPIAN (E20131007577) LECTURER : CIK FATIMAH EXPERIMENT NO. : EXPERIMENT NO.1 TITLE : EXTRACTION OF DNA
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The properties of dibenzalacetone make it a great substance to be used when protecting the skin from the sun. In the experiment performed‚ dibenzalacetone was created from an aldol condensation of 2 portions of benzaldehyde and acetone in sodium hydroxide. The reaction that occurred in this experiment is known as a specific aldol condensation called Claisen-Schmidt. In the reaction‚ the carbonyl of benzaldehyde reacts quickly with the acetone anion to create a hydroxyketone that dehydrates in the
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