Ocean Acidification SDI: Solubility of CO2 in different temperatures Aim: To observe the solubility of CO2 in different temperatures Hypothesis: We hypothesise that in cold water the level of co2 absorption will be greater than warm water which will mean the air space in the cylinder will be less compared to warm water. Independent: Type of water. Dependant: room temperature‚ amount of water‚ type‚ size and amount of tablet‚ amount of water in the basin. Materials: 250ml graduated
Free Carbon dioxide Oxygen PH
Cells of all organisms are capable in acquiring the energy necessary to fuel chemical reactions for growth‚ repair‚ survival‚ and reproduction. Photosynthesis & cellular respiration are the main pathways of energy flow in living things. Photosynthesis is a process by which plants and some other organisms convert‚ light energy from the sun‚ CO2 from the air & H2O from the earth‚ into chemical energy stored in molecules like glucose. Cellular respiration is a process in which O2 is delivered to cells
Premium Cellular respiration Photosynthesis Metabolism
energy from the sun and use it to form starch molecules. The process by which this happens is called photosynthesis and results in the formation of oxygen and glucose. Plants take in carbon dioxide‚ water‚ and light then release oxygen back into the air. This process happens because of the movement of hydrogen to the hydrocarbons that are produced during photosynthesis. The discovery of photosynthesis is attributed to Dutch scientist Jan Ingenhousz who was the first to find that light is necessary to
Premium Photosynthesis Oxygen Light
Photosynthesis vs. Semiconductor based solar cell. Photosynthesis vs. Semiconductor based solar cell. Wais Ghowsi Instructor: Meri Stanec SCI 115 April 24th‚ 2011 What is Photosynthesis? Photosynthesis simply means the conversion of light energy into chemical energy by living organisms. In photosynthesis‚ the raw materials are water and carbon dioxide. Energy is taken from sunlight and the end products give out glucose and oxygen. It is the most important‚ naturally occurring process
Free Photovoltaics Solar cell Energy
Introduction: Trying to find a good‚ quantitative procedure that students can use for exploring photosynthesis is a challenge. The standard procedures such as counting oxygen bubbles generated by an elodea stem tend to not be “student” proof or reliable. This is a particular problem if your laboratory instruction emphasizes student-generated questions. Over the years‚ I have found the floating leaf disk assay technique to be reliable and understandable to students. Once the students are familiar
Free Carbon dioxide Photosynthesis Oxygen
HYPOTHESIS Using train conductors as representatives for all of human kind we can postulate with some accuracy the percent of the population of Earth that are complete and total assholes. If you have ever lived in a small town with train tracks running through it you will know that the conductor of the train is required to sound the whistle at every crossing. This is a 4-part whistle; 2 long‚ 1 short‚ 1 long. My hypothesis is that we can calculate what percentage of the population of planet Earth
Premium World population
Practical 5: determination of activation energy of an enzymed catalyzed reaction Introduction: enzymes are complex chemicals that control reactions in living cells. They are biochemical catalysts‚ speeding up reactions that would occur too slowly to be of any usefulness to an organism. Although in organisms‚ it is not necessary for the reactions to be at maximum rate at all times. Enzymes interact with other molecules to produce a stable system in which the products are made when they are
Premium Enzyme Chemical reaction Catalysis
The starting material for this lab was the dialyzed sample (stored at -20ᵒ C) from the previous lab. The CM sephadex resin (taken in a 50 mL tube) was already made swollen using Buffer C (20 mM HEPES‚ pH 7.9; 1 mM EDTA; 50 mM KCl). The dialyzed sample was thawed to the room temperature and gently poured over the resin. The tube was capped and kept on a rocker at room temperature for 1 hour. The tube was then centrifuged in a HS-4 rotor at 2500 rpm (1200g) for 5 minutes at 4ᵒ C. Supernatant was discarded
Premium Laboratory glassware Laboratory equipment Chemistry
PHOTOSYNTHESIS & CELLUAR RESPIRATION LAB REPORT % Absorption 400 425 450 475 500 525 550 575 600 625 650 675 700 Average 47 44 37 27 14 10 8 9 9 10 15 17 14 Use the graph of Average % Absorption for Grass Pigments to answer the following questions. ANSWER ONLY THE QUESTIONS BELOW. YOU WILL LOSE POINTS IF YOUR ANSWER INCLUDES UNRELATED INFORMATION. 1. What specific range of wavelengths explains why grass is green? The absorption of all wavelengths outside approximately
Premium Light Visible spectrum Purple
component in photosynthesis. It is an enzyme involved in the fixation of atmospheric carbon dioxide. b.) Due to global warming‚ the increased temperature can influence Rubisco which can catalyses oxygenation over carboxylation. During carboxylation CO2 is fixed and raised temperature enhancing oxygenation. c.) Level of PGA depends on Rubisco with who is going to bind. Rubisco is an enzyme that reacts with CO2 and O2. The reaction with O2 competes with carboxylation reaction where CO2 is fixed. That
Premium Carbon dioxide Global warming Greenhouse gas