What affect does the concentration of sugar have on the rate of respiration of yeast? Apparatus: 1. Stopwatch with a resolution of 0.001 seconds 2. 4 test tubes 3. 200 ml of yeast in a beaker 4. 200 ml of glucose solution 5. 500 ml of limewater 6. 2 delivery tubes 7. 1 test tube rack 8. 1 water bath set to 37°C 9. 2 pipettes 10. 3 measuring cylinders with a resolution of 1ml‚ ranging from 0-30ml. 11. 200 ml of water Hypothesis: The higher the concentration
Premium Measurement Glucose Fructose
That was fast: The influence of light intensity on the growth and development of Wisconsin Fast Plants Introduction It is common knowledge that plants need light to grow and develop. This is done by the conversion of light energy into usable sugars during photosynthesis. Light absorbing molecules‚ known as pigments‚ absorb only specific wavelengths of visible light‚ mostly blue and red wavelengths (1). Whatever wavelength isn’t absorbed is reflected and the reflection is the color of plant we
Premium Seed Light Plant morphology
aspect of the globe. The optic nerve is the ‘black stripe’ running away from the posterior aspect of the globe and optic disc‚ and should ideally be positioned in the centre of the ultrasound screen. The nerve sheath‚ as seen on ultrasound examination‚ has a high reflectivity compared to the homeogenous appearance of the nerve‚ and should be relatively easy to distinguish. If the optic nerve sheath is markedly dilated‚ it may be possible to diagnose this from visual estimation alone. In general‚ however
Premium Measurement Spinal cord Medical imaging
clearly glucose has highest respiration rate of 455 ppm/min. Sucrose is second with 391 ppm/min‚ then fructose with 231 ppm/min and lastly lactose with 92 ppm/min. We can see a clear trend‚ that glucose had the highest rates and that lactose was the lowest‚ so we see a clear downwards sloping trend‚ which was also expected. This suggests that yeast respires best with glucose instead of sucrose fructose or lactose. To explain this process‚ we must first understand how sugar affects yeast growth. First
Premium Glucose Sugar Carbohydrate
experiment was to determine the effect of temperature on the rate of movement of Porcellio scaber. Our prediction was that P. scaber would have faster rates of movement in hotter temperatures. We expected this response as P. scaber is an ectotherm. Hence‚ its body temperature is directly determined by the temperature of its environment (Mellanby 1939). Løkke and van Gestel (1998) stated that the rate of the metabolism is controlled by the environmental temperature for ectotherms. As seen by Wieser
Premium Temperature Woodlouse Energy
is which type of temperature change will result from heating ice to liquid‚ then boil (steam)? What will happen to the water after the boil? I hypothesise the water heats ice to liquid and then goes to simmer and boil. The independent variable is the hot plate changed to a burner itself. The dependent variable is what we are measuring is the time. The steps in the lab were to first start off with a burner‚ ice and water in a beaker‚ then record time and water temperature. Also‚ some phase
Premium Temperature Water Chemistry
PURPOSE What sugar will get the most rise out of yeast‚ so you can get the best bread or baked goods possible. Sugar when mixed with yeast and water will produce carbon dioxide. The carbon dioxide from the yeast sugar and warm water will make the balloon on top of the water bottle blow up. I hypothesize that brown sugar will make the balloon blow up the most HYPOTHESIS If I were to mix brown sugar‚ with yeast‚ and warm water together it should have a different reaction as opposed to other sugars
Premium Glucose Carbon dioxide Water
Homework Has Terrible Effects Teachers should be concerned more about the side effects of too much homework. Students spend many hours outside of school doing homework. Teachers should reduce the amount of homework because too much homework eliminates students’ free time‚ can contribute to bad grades‚ and can decrease student’ health. Teachers have to understand that students go to school five days a week. They also don’t get enough time to participate in other activities. Every student has something
Premium
Dancehall music has become a symbol of explicit sexual imagery and violence. Despite the positive effects Dancehall music might have on our young people‚ it has become more a pathway for moral degradation with our young people. Dancehall is a “style of Jamaican popular music that had its genesis in the political disturbance of the late 1970′s ad became Jamaica’s dominant music in the 1980′s and 90′s”‚ ( C.J.Cooper) “Jamaican dancehall culture is commonly disparaged as a homophobic‚ homicidal‚ misogynist
Premium Dancehall Gender Reggae
where many people were against slavery. African American Scholar Michael Eric Dyson once said “The effect of slavery continues to exert its brutal influence in the untold sufferings of millions of everyday folk.” Basically Dyson is saying that slavery has and still is currently effecting everyday people today specifically blacks. If you were to drive through any city today I believe that the effects of slavery are very clear in housing‚ jobs‚ and schooling. The white man is still known as the high-class
Premium Black people Fourteenth Amendment to the United States Constitution Racial segregation