Part C You want to test the effect of sucralose on the growth of a plant. Design a study using the steps of the scientific method. Identify the dependent and independent variables in this experiment. BIUX² X₂ 15px EEEEEE Characters used: 0/ 15000 AVA FRY
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- I'm studing Cellular Respiration. We did a lab. We had technical difficulties... our CO2 gas sensor wasn't working properly. So I am curious, what trends SHOULD I have seen. We compared the CO2 output of bean sprouts vs mealworms. We tested at both room temp (27 degrees C) vs cold temp (15 degrees C) for both the mealworms and bean sprouts. I need to know the trends I should have seen, ie. does an animal or plant produces more C02 and why? Also does the the cool temp make the reduction in CO2 production? Thank you.Two fields contain a variety of plants (some C3, some C4 and some CAM). Field A is sprayed with an herbicide that inhibits PEP Carboxylase. Field B is sprayed with an herbicide the inhibits Rubisco. When you return to examine the fields after one week, what do you expect to find, and why?Bruce Ames and his colleagues have pointed out that although detailed toxicological analysis has been conducted on synthetic chemicals, almost no information is available about the mutagenic or carcinogenic effects of the toxins produced by plants as a natural defense against fungi, insects, and animal predators. Tens of thousands of such compounds have been discovered, and he estimates that in the United States adults eat about 1.5 g of these compounds each daylevels that are approximately 10,000 times higher than those of the synthetic pesticides present in the diet. For example, cabbage contains 49 natural pesticides and metabolites, and only a few of these have been tested for their carcinogenic and mutagenic effects. a. With the introduction of new foods into the U.S. diet over the last 200 years (mangoes, kiwi fruit, tomatoes, and so forth), has there been enough time for humans to develop resistance to the mutagenic effects of the toxins present in those foods? b. The natural pesticides present in plants constitute more than 99% of the toxins we eat. Should diet planning, especially for vegetarians, take into account the doses of toxins present in the diet?
- explain the reason for the possibility of getting the reverse of the results in this experiment. result: flask A with germinated seeds temperature increases and flask B with boiled seeds temperature remain unchangedIn an experiment that uses different concentrations of avocado catalase to determine how it affects the rate of the reaction with hydrogen peroxide, what would be learned? How does it apply to similar situations? What’s the next experiment that could be done based on results seen?hi i would like a simple but in deapth explaination of this diagram
- . Based on the data in the scatter plot, estimate the percentagechange in dry mass of corn and velvetleaf plants if atmosphericCO2 concentration increased from 390 ppm (current levels)to 800 ppm. (a) What is the estimated dry mass of corn andvelvetleaf plants at 390 ppm? 800 ppm? (b) To calculate thepercentage change in mass for each plant, subtract the massat 390 ppm from the mass at 800 ppm (change in mass), divideby the mass at 390 ppm (initial mass), and multiply by 100. Whatis the estimated percentage change in dry mass for corn? Forvelvetleaf? (c) Do these results support the conclusion fromother experiments that C3 plants grow better than C4 plantsunder increased CO2 concentration? Why or why not?Two groups of tomatoes were grown under laboratoryconditions, one with humus added to the soil and one acontrol without humus. The leaves of the plants grownwithout humus were yellowish (less green) compared withthose of the plants grown in humus-enriched soil. The bestexplanation is that(A) the healthy plants used the food in the decomposing leavesof the humus for energy to make chlorophyll.(B) the humus made the soil more loosely packed, so waterpenetrated more easily to the roots.(C) the humus contained minerals such as magnesium andiron needed for the synthesis of chlorophyll.(D) the heat released by the decomposing leaves of the humuscaused more rapid growth and chlorophyll synthesis.If a C3 plant and a C4 plant are placed in separate sealedcontainers and provided with adequate light and water, bothwill survive. If both plants are placed in a single sealed container, the C3 plant will die. Explain.
- In this experiment, answer the following questions: 1. How do you measure the energy produced in this experiment? 2. Will you be able to perform the same results (flask A with germinated seeds temperature increases and flask B with boiled seeds temperature remain unchanged), assuming you will be using a regular glass flask? Why? 3. How come the (boiled seeds) control set up release energy as well? How come even if the boiled seeds here are considered dead they still release energy? 4. Is it possible of getting the reverse of the results. If yes, why?EXPERIMENT : GRAVIMETRIC ANALYSIS OF PHOSPHORUS IN PLANT FOOD Aim: To determine the amount of phosphorus in a commercial plant food Objectives:.......... I want Objectives for this experimentHow would you design an experiment to test the following hypothesis: " The optimal temperature for photosynthesis in spinach leaves is 20 degrees Celsius?"
