I. Introduction: The purpose of this lab report is to differentiate between of Newton’s Third Law and Newton’s Second Law. Newton’s Third Law states that all forces come in pairs and that the two forces in a pair act on different objects and are equal in strength and opposite in direction. Newton’s Second Law states that the acceleration of an object is proportional to the net force and inversely proportional to the mass of the object being accelerated. Using calculation equations for acceleration
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that cigarettes release more then 20 carcinogens know to promote lung cancer into your body. (Hecht‚ 2010). When looking at the cilia exposed to cigarette smoke in this lab it is seen that they have been greatly slowed down when compared to the uncontaminated cilia‚ and parts of the cells are covered in tar from the tobacco. For this lab it was hypothesized that smoking will inhibit the ciliary action and lower the quality filter the greater affect will be exhibited by the effected cilia. The prediction
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Name: Block: Date: Seed Germination Inquiry Lab (adapted from- http://employees.csbsju.edu/SSAUPE/biol106/Labs/seed_germination.htm) Objectives: The purpose of this lab experience is to provide an opportunity to: 1. measure seed germination percentage and rate 2. learn the requirements for seed germination 3. study the effect of various treatments on seed germination 4. grow a plant to maturity 5. learn about a particular species of plant Introduction: A seed is essentially a baby in
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Enzyme lab report. Introduction. An enzyme is a protein molecule that speeds up the rates of chemical reactions by many folds. They recognize‚ bind‚ and change specific reactants. They do not change thus can catalyze the same reaction again and again. Activation energy also known as an energy barrier is the amount of energy needed in order to begin a chemical reaction. Catecholase catalyzes the reaction rate of catechol oxidation. Catechol is found beneath the skin of many plants such
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converting light energy captured from the sun into chemical energy that can be used to synthesis glucose is called photosynthesis. This process is used by plants and other organisms for synthesis of lipids and amino acids or can be metabolized during cellular respiration to produce ATP. This process takes place in chloroplasts‚ which is a plastid that contains chlorophyll and involves two interlinked reactions‚ which are light dependent reactions and light independent reactions. Throughout our lab experiment
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How does change in precipitation changes beak size‚ population and the size of seeds? By: Karen Ann Weeks Dr. Tomáš J "Doc" Oberding January 20‚ 2013 Introduction and Purpose Hypothesis – When changing the level of precipitation which changes the seeds to hard large seeds the finches with the smaller beaks with become a smaller population when changing the precipitation which changes the seeds to smaller soft seeds will increase the population no matter what size of the beaks. This experiment
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In this lab‚ we extracted spinach pigments‚ and analyzed what colors of light these pigments absorb. By using TLC plate‚ hexane and acetone‚ I separated the pigments of spinach‚ and discovered that the main pigments were green and yellow. This works because with different polarities‚ pigments move at different rates. Hexane and acetone were also used to separate chlorophyll and carotene from spinach. Since they are polar‚ they can separate organic and inorganic things. From the experiment‚ I know
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A seed consists essentially of a seed coat‚ stored food and a young plant‚ the embryo. The seed coat may be made of inner tegmen and outer testa. On the seed coat a scar (hilum) is present which shows the place of attachment of a seed in the fruit is present. At one end of the hilum is the micropyle. Through micropyle the seed absorbs water during the process of germination. The embryo consists of epicotyl‚one or two seed leaves called cotyledons‚ and a hypocotyle. The portion of the embryo above
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are light-independent reactions‚ and light dependent reactions. The occurrences of Light-independent reactions happen in the STROMA of the chloroplasts. The substances consumed during this reaction are ATP and NADPH. The occurrences of light-dependent reactions happen within the THYLAKOIDS of the chloroplasts. The substances consumed during this reaction is light‚ which is absorbed by chlorophyll molecules‚ which then produces hydrogen ions‚ electrons‚ oxygen gas‚ ATP and NADPH. “The light-dependent
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Termite Lab Report The effect of ink on termite behavior Abstract Termites produce special chemicals within their bodies called pheromones. Because termites are usually found inside dark areas‚ pheromones help them communicate in these places. Past studies have suggested that ink inside ballpoint pens contains pheromones‚ causing termites to follow any trail created by the ink. If a pathway is drawn with an ink pen‚ then a termite will be attracted to the path and trace it due to the pheromones
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