Molecule

water absorbs heat, while temperature can be measured in degrees of Celsius or Fahrenheit. Heat is produced by the random vibration of atoms or molecules. Water molecules in hot water vibrate faster than in cold water. Heat is a measured by the number of vibrating atoms and how fast they are vibrating. Temperature is measured in speed of vibrating molecules in the water. Temperature is the water’s response to an input or removal of heat. So to say, liquid water’s thermal characteristics keeps…

In, “Movement of Molecules in or Out of Cells” on page 159 to 163, it reads, “A student put a drop of blood on a microscope slide and then looked at the cells under a microscope. Initially the magnified red blood cells looked like little round balls, however after adding a few drops of sugar water to the drop of blood, the student noticed that the cells appeared to become smaller.” Now the question stands, why did the red blood cells appear smaller? There were three possible explanations…

which breaks glucose into two molecules of pyruvate, resulting in a net gain of two ATP molecules for the cell. Two NADH molecules are generated during glycolysis which produces four ATP. However two molecules of ATP are used to initiate glycolysis thus the cell has a net gain of two ATP molecules. A chemical reaction converts pyruvate to a molecule called acetyl-CoA. The acetyl-CoA then enters the citric acid cycle which breaks down two absorbed pyruvate molecules, transferring hydrogen atoms…

concept to understand when describing any reaction is the idea of collision probability. When we examine gas molecules in a 1 cm3 container, there can be billions of collisions per second between neighboring molecules, and even then, maybe only one of these collisions result in a reaction. If any one collision occurs, the only way they will react to form a new molecule, in this case an HI molecule, is if they meet specific activation energy requirements. This means that each collision must have…

folded further to give the protein molecule a complex globular shape that is known ate the tertiary structure. Similarly to the secondary structure the tertiary structure of protein is determined by a sequence of amino acids in the polypeptide chain. (Inge B et al, 2001 page 45) This means that the tertiary structure refers to the overall three dimensional shape of a polypeptide chain. As seen in the image below. Proteins are classified into…

would bounce. How does temperature affect air pressure? There are many things that happen with temperature and air pressure. To begin with, temperature can affect air pressure in different ways. For example, as the temperature increases, the molecules…

would not be sanitary. This meant he had to make it by bonding hydrogen and oxygen molecules. This process allowed Mark Wattney to create 600 liters of water that he would have otherwise died without. A hydrogen bond is the electromagnetic attraction exerted between polar molecules where hydrogen is bound to a larger atom. An example of this would be a hydrogen atom bonding to an oxygen or nitrogen atom. A water molecule is formed by 2 negatively charged hydrogen atoms attaching to a positively…

break hydrogen bonds before it can boil. Freezing works the same way as boiling, but in reverse since it is going to colder temperatures, zero degrees Celsius to freeze, rather than hotter. These extremes in freezing and boiling points allow the molecules to freeze or boil very slowly. Another unique property of water is surface tension. Aside from mercury, water has the highest surface tension of all liquids. The reason why water’s surface tension is high is because of the hydrogen bonding in…

Sweta Soni 2/22/15 Biochem Lab Experiment 5 Introduction The purpose of Experiment 5-1 is to separate a mixture of three molecules—blue dextran, cytochrome c, and potassium chromate—through the use of gel-filtration chromatography. The volume at which each molecule elutes will be recorded in order to determine the accuracy of separation. The purpose of Experiment 5-2 is to purify the E. coli enzyme, β-Galactosidase through the use of affinity chromatography on…

My hypothesis was correct, the ideal results reveal that suspect two was person who committed the crime. Sadly, the actual gel revealed very little and it was incredibly difficult to see and did not come out in the photo. The DNA I have obtained should be pure DNA, since it was filtered and separated from the rest of the solution there should be nothing else in it. In order to be certain of this an indicator could be used in order to test for other substances. The main problem with the DNA…