threadlike part of the nucleus and a structured DNA in the form of genes carrying hereditary information (Bridges‚ 1938). Endomitosis is the process of mitosis of chromosomes without undergoing nuclear or cellular division to increase cell volume. This results in a single nucleus having many copies of a single chromosome (Painter & Reindorp‚ 1940). In this experiment‚ Drosophila melanogaster is reared in specific conditions and its salivary gland extracted to study endomitosis. I hypothesize that I will
Premium DNA Chromosome Gene
Introduction The purpose of this lab is to determine which pigments in a plant support or effect photosynthesis‚ based on starch production‚ which wavelengths of light are involved in photosynthesis‚ and identify plant pigments found in a plant leaf by means of paper chromatography. Life on Earth is dependent entirely on the energy from the Sun‚ not only to keep the planet at a suitable temperature but also to provide the energy required to sustain life. The energy of the Sun‚ in the form of
Premium Photosynthesis Chlorophyll
Conclusion I predicted that if the decolorization of DPIP is caused by photosynthesis and not cell respiration and spinach extract containing chloroplasts and mitochondria is incubated with DPIP‚ then the rate of DPIP decolorization should be higher if in bright light verses dark light because DPIP is reduced by photosynthesis and not by the mitochondria or any other cellular function. If DPIP was only decolorized by chloroplasts‚ then the percent transmittance of chloroplast suspensions would be
Premium Oxygen Photosynthesis Carbon dioxide
Virtual Lab: Optimizing Photosynthesis Maria Diaz March 12‚2012 Pre-Lab Questions 1. Which two variables are controlled in a similar manner? The two variables that can be controlled in a similar manner are CO2 & the light level. 2. How can you get the results to the investigation faster? You can get the results to the investigation faster by adjusting the speed at the bottom of the water weed simulation. 3. How will you be able to determine the rate of photosynthesis
Premium Photosynthesis Oxygen Carbon dioxide
Photosynthesis Lab Gizmo website: www.explorelearning.com Class code: EFVNHTVRGY Gizmo Warm-up During photosynthesis‚ plants use the energy of light to produce glucose (C6H12O6) from carbon dioxide (CO2)‚ and water (H2O). Glucose is a simple sugar that plants use for energy and as a building block for larger molecules. A by-product of photosynthesis is oxygen. Plants use some of the oxygen they produce‚ but most of it is released. In the Photosynthesis Lab Gizmo™‚ you
Free Light
hypothesis because I knew if there was to be a change then normally a color change would also occur. There was no potential for error‚ everything was straight forward and the measurements were exact. I checked my results and found everyone else who did this experiment got the same results so my data is
Premium Oxygen Respiratory system Lung
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
Like Proteus vulgaris Microbiology Lab Report for Unknown Robert Bhowanidin MCB 2010L / Section 1290 October 24th‚ 2013 The following report will describe both my journey to find my unknown as well as the results that led to my discovery. Before I start‚ I will say that I am 100% positive that my unknown (which was #31) is none other than Proteus vulgaris. My data and the ensuing results from them simply cannot be disputed. From my first batch of results‚ Proteus vulgaris reared its head
Premium Enzyme Color Red
_______(savanna chatham)_________________ Virtual Lab #5- “Which Colors of the Light Spectrum are Most Important for Plant Growth? Instructions: Open the link to Launch “Virtual Lab #6- Photosynthesis” Read all instructions on the left-hand side of the lab. Watch the short Video at the bottom of the lab Complete the “Pre-Lab” Questions. Complete the Lab Activity Record your findings in the “Results” and “Post-Lab” sections and answer all review questions Pre-Lab: 1.) List all of the colors found in the visible
Premium Color Red White
Title: Rate of Photosynthesis Introduction: Photosynthesis occurs in plants where the light energy changes to chemical energy. This process occurs in the chloroplast of the plant cell in order to have gas exchange in the organism. Purpose: To measure the effect of light intensity on the rate of photosynthesis in the leaf cells. Hypothesis: The higher the concentration of the sodium bicarbonate solution‚ the faster the leaf of the plant will rise to the surface of the water in the beaker‚ the
Premium Sodium bicarbonate Photosynthesis Chemistry