Transpiration Lab Report

The independent variable of this experiment are the environmental factors that you are testing on the rate of transpiration, so our independent variables would be bright light, fan, dark, and misted. The dependent variable is the rate of transportation because this depends on whatever environmental factor the plant is placed. The constants were things like the type of plant we used, the room temperature, the type of scale we used and how far the fan/light was placed from the plant.

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

Organisms are complex and use energy to function, grow, and reproduce. Organisms get this energy from photosynthesis and cellular respiration. Photosynthesis is the process by which plants harness sunlight to make glucose from carbon dioxide and water1. Photosynthesis provides glucose for cellular respiration. Glucose is the reactant for cellular respiration. Cellular respiration has complex stages, where the glucose molecule is slowly broken down. The formula for cellular respiration is C6H12O6 + 6O2 ⇢ 6CO2 + 6H2O + energy.

The Purpose of the Cell Respiration Lab is to find the different levels of Oxygen consumption, and Carbon dioxide production in organisms releasing different amounts of energy a relative period of time.

Abstract: In this procedure, phenolphthalein will be used to detect changes in pH resulting from the production of CO2 during cellular respiration. Because phenolphthalein is red in basic solutions and colorless in acidic solutions, you can monitor cellular respiration by measuring acid production as change in pH. CO2 produced during cellular respiration can combine with water to form carbonic acid. By measuring the volume of NaOH used to neutralize the carbonic acid produced by the CO2, and thereby calculate a proximate measure of respiration.

In the experiment, it was proven that Tube 13 had the highest enzyme activity condition. The question being asked in this experiment is how does substrate concentration and pH affect enzyme function. It was hypothesized that there will be an optimal condition outside which function is lower. The group predicted that optimal conditions are pH is 7 and substrate concentration is 6 percent. In conclusion, this whole experiment justifies that enzymes are affected by the changes in pH. Where enzymes are most active is where you will find the most favorable pH value. According to the data, the substrate concentration with the highest enzyme activity is the 0 percent H2O2, which has a value of 0.0093. When compared to literature the 6 percent H2O2

Cell respiration is the most prevalent and efficient catabolic pathway. It require transfusions of energy from outside sources to perform their many tasks. The the objective of this experiment was to measure the concentration of oxygen gas and carbon dioxide gas. Also to determine whether germinating peas respire. The hypothesis would be that germinating

October 17, 18, and 19, samples were collected from multiple sites along the BSR. The class was split into groups, and samples were collected from seven separate locations along the river and WWTP. There was also a sample collected by the S which is located between sites four and five. For each of these sites, there were ten groups from other labs that also collected a sample from the BSR. At site two of the river, the location included multiple sources of possible contamination. A drainage site was located 200 yards upstream, along with a small PVC drainage pipe next to the collection site. Not only was there drainage running into the river, the site was under a bridge, and contained other trash scattered throughout the area. The

The first hypothesis was unsupported as Tube 4 (positive control) had the most succinate (.2mL) but ended with the lowest % transmittance out of the three sample we were examining (Tubes 2-4). We believe this discrepancy to be due to the variability of the mitochondrial solution. If the Tube 4 mitochondrial suspension had less concentrated enzyme than the solution for Tube 3 and Tube 2 then Tube 4 would be biologically incapable of matching their rate of reduction. It's worth mentioning that Tube 2 and 3 had a %T change of 23.1% and 23.2% respectively while Tube 4 exhibited a change of only 20.4%; further supporting the idea that Tube 4, despite its increase in succinate concentration, wa lacking in other enzymes/proteins necessary for the

The Effect of Temperature on Animal Respiration Renee King 001420538 TA: Oliver Biology 3U03 L01 This lab examined the effect of temperature on the rate of oxygen consumption by measuring VO2. Effects were observed in goldfish, frogs, and mice, which each use different mechanisms for thermoregulation. The average rate of oxygen consumption by goldfish increased from an average of 0.175 mL g-1 h-1 at 5֯ C to 0.288 mL g-1 h-1 at 25 ֯C which was a 64% increase. The average rate of oxygen consumption by the frog was higher at 5֯ C than at 25 ֯C. At both temperatures, the rate of oxygen consumption increased over time.

There is a hierarchical structure within all multicellular organisms, increasing from macromolecules to cells, tissues, organs and systems (Crierie & Greig, 2002). The bicep, see figure 1, is made up of muscle cells and tissues, of which require energy to contract and move the arm.

Transpiration is the technical term for the evaporation of water from plants. As water evaporates through.As water evaporates through the stomata in the leaves in the leaves and tissues of the xylem. The negative pressure exerts a pulling force on the water in the plant’s xylem and draws the water upward.Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.

The very existence of living cells depends heavily on the potential energy of the cell. At the chemical level, these bonds have potential energy ("Potential, Kinetic, Free, and Activation Energy. Biology," n.d). Most of the ATP formed during aerobic catabolism, could be the result from a process that begins with passing electrons through a number of chemical reactions to a final electron acceptor O2. It is the only place where aerobic respiration requires O2?.

Background Two types of respiration occur during exercise that depend on the oxygen levels in the blood. Aerobic respiration requires oxygen that acts as the electron acceptor at the end of the electron transport chain (ETC). The full mechanism of aerobic respiration, from glycolysis to the ETC, creates 38 ATP on average. However, when there is not sufficient oxygen to perform aerobic respiration, anaerobic respiration occurs. The only a net gain of two ATP during anaerobic respiration due to glycolysis. The pyruvate that is a product of glycolysis is then put through lactic acid fermentation which leads to muscle fatigue because of the low pH of lactic acid. At sea level the blood oxygen saturation of a healthy person breathing normal air

The overall aim of this report was the conduct an experiment based how different light intensity levels, representing the four seasons in a year: summer, spring, autumn and winter, affects the transpiration rate in a mangrove plant. To do this we had to set the 4 different beakers at different lengths apart, each beaker (from beaker 1 representing summer) placed further and further away from the desk