Proteins are an essential part of all living organisms. Proteins are macromolecules made up of amino acid chains. These chains of amino acids are held together by peptide bonds to from polypeptide chains. Each proteins function is determined by its own unique three dimensional shape and active site. Proteins have multiple functions that are important to all cells.
Title: The burning speed of coloured and white candles. Type of project: Pure Science What I will do is take 2 candles and burn them and see how long it takes for each candle to burn. Candles, Advent, ChristmasA yahrtzeit candle, lit on the Proposal Question: Does the composition of materials in candles effect the rate of burning and do colourants have an effect?
The question is, how does a physical or chemical change affect the mass of a substance within a closed system? To respond to this question, my group did a lab to determine whether or not the mass would change or not. Our lab was to have a plastic bag containing baking soda, then add a cup of vinegar and a block of clay to the mix. We made sure to weight every element separately and then add them up for our total mass of 31 grams before the reaction. During the reaction, as soon as the vinegar was poured in there was a gas produced, bubbles.
Different Mole Ratios And It’s Reactions Introduction: Chemical reactions play an important role when it comes to mole ratios.
Lab Report By: Amiya Kamal 7B Purpose: The purpose of this experiment is to analyse different substances and see their reaction with each other substances. This experiment is also to examine the particle theory of each mixture.
Equation 3.1 can be simplified to the following equation γ(t,m;m_m )= e^(α-βm)/〖(t+c)〗^p (3.2) Where a_0=a+bm_m , α=a_0 ln10 and β=b ln10 are defined. |γ_m (t,m;m_m )|=|∂γ(t,m;m_m )/∂m|=e^α/〖(t+c)〗^p βe^(-βm) (3.3) Where |γ_m (t,m;m_m )| represents the absolute value of the partial derivative of γ(t,m;m_m ), and it is the instantaneous daily rate density of aftershocks of magnitude m at time t following a main-shock of magnitude m_m. e^α/〖(t+c)〗^p denotes the mean instantaneous daily rate of aftershocks at time t following the main-shock of magnitude m_m. βe^(-βm) is the exponential probability density function of aftershock magnitudes.
What type of chemical reaction will a balloon receive when filled with an acid and base? Acids and bases are around us everywhere in various types of liquids. They are in the foods we eat and the things we use on a daily basis, for example liquid dishwashing soap. Acids are usually sour and bases are silky, giving it a bitter taste. Water can act like both, depending on the situation.
Abstract: WhatWhat flammable chemical would burn longer if soaked in a cotton ball? If someone were to be using any of the following chemicals, Rubbing Alcohol or Biodiesel. That person would need to know how flammable the chemicals are when being used In the experiment’s variables are independent variables which one is the type of liquid, the dependent variable is the burn time.
1. The topic I’m doing my experiment on is chemical reactions. In my experiment I will mix baking soda and vinegar in a closed plastic bottle. I hypothesize that when the baking soda and vinegar mix gas will form and start filling up the bottle eventually leading to a small explosion. The dependent variable is the product of the chemical reaction and the formation of gas filling up the bottle eventually causing an explosion.
Developing a topic for Science Fair will never be easy unless you have a little background about that certain topic. One particular scientist is developing her topic by researching questions she has that revolved around her topic. The scientist will be researching how water temperature can affect the chemical reaction rate between baking soda and citric acid within a bath bomb. The independent variable will be the temperature of the water (mL). The dependent variable will be the chemical reaction rate which is formed by baking soda (g) and citric acid (g).
Introduction Chiral molecules chemical structures that are non-superimposable mirror images of one another, much like the way a person’s hands are. Also known as stereoisomers, these compounds have the same molecular formula with different spacial orientation. Each chiral molecule contains a pair of enantiomers, each of which represents the two structures for each molecule (ie left hand and right hand). Chiral molecules play a huge part in pharmaceutical compounds, making up 56% of the drugs currently on the market with around 88% of these being classified as racemic ie. Has an equal amount of left and right hand enantiomers.
Proposed Work: The research that I am involved in is exploring the role and structure of the protein Perilipin 5, which is involved in lipolytic activity in oxidative muscles. The goal of my research is to uncover the N-terminal structure of the protein Perilipin 5. The value behind knowing the structure of a protein is great. Once the structure of a protein is fully comprehended, we can more fully grasp the impact and interactions that it has on other molecules in cells and, therefore, how the cell uses this protein in lipolytic activity.
Also, salt is an ionic compound and not a polar covalent compound, even though it did not melt last, due to the fact that the elements Na and Cl, both lose or gain an electron and then bond because of their opposite charges, which is a property only ionic bonds possess. The wax was the only substance whose results were synonymous with my hypothesis, since it required a low temperature for its melting point and was not soluble in water, both properties of nonpolar covalent compounds. Potential sources of error included not labeling the spots each substance was placed in the aluminum foil boat, seeing as the result for sugar seemed to be the correct conclusion for salt and vice versa. A future experiment would involve individually testing each substance in an aluminum foil boat, of the same brand, on a heat plate in order to avoid uncertainty. Each substance should be timed to record the precise time each substance began to melt or burn.
Properties of Substances Express Lab 1)The purpose of this lab was to compare the physical properties of different types of solids and how the properties of solids are determined by their intermolecular forces and their intramolecular bonds. Then we were to classify each type of solid as either ionic, metallic, non-polar molecular, polar molecular, or network. Paraffin wax classified as a non-polar molecular, Silicon dioxide was classifies as a network, Sodium chloride was classified as ionic, Sucrose was classified as polar molecular and Tin was classified as metallic. (2)The intermolecular forces that are present in Paraffin wax are dispersion forces, because it is non-polar and carries a negative charge. Followed by Sucrose that has
Introduction The purpose of this lab is to use control variables to help identify different macromolecules. Biological systems are made up of these four major macromolecules: carbohydrates, lipids, proteins and nucleic acids. Carbohydrates are sugar molecules (monosaccharides, disaccharides, and polysaccharides) which make them the most abundant macromolecule on the earth. Lipids (oils and fats, phospholipids and steroids) are insoluble in water and perform many functions such as energy source, essential nutrients, hormones and insulators (Lehman, 1955).
