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Discuss the concept of apparent free space. What role does apparent free space play in the uptake of nutrient ions?
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- If there was India Ink added to a culture of Paramecium caudatum, it would increase the average number of food vacuoles because India ink contains no sugar or nutrients and the formation of food vacuoles would be the first stage in the metabolic process when digesting nutrient-rich particles. What would be the observed effects on the number of food vacuoles of different concentrations such as 1% (v/v), 10% (v/v), and 25% (v/v) of India ink? Will it change over a duration of 30 minutes?If there was India Ink added to a culture of Paramecium caudatum, it would increase the average number of food vacuoles because India ink contains no sugar or nutrients and the formation of food vacuoles would be the first stage in the metabolic process when digesting nutrient-rich particles. What would be the observed effects on the number of food vacuoles over a duration of 30 minutes for different concentrations such as 1% (v/v), 10% (v/v), and 25% (v/v) of India ink?Describe the physiologic advantages of the ability to interconvert nutrient biomolecules.
- Name and describe the two nutrient transport systems in the bodyWhy is energy required for nutrient transport? Give an example of a system that transports nutrients and describe what source of energy is used to move the nutrients into the cell. Why can’t most organisms use the nitrogen gas that is so prevalent in the atmosphere? How do these organisms acquire a usable form of nitrogen?Explain Feedforward Regulation?
- briefly explain nutrient density?An experiment is designed to study the mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored. Samples of the cells are taken at intervals, and their sucrose concentration is measured. The pH is observed to decrease until it reaches a steady, slightly acidic level, and then sucrose uptake begins. (1)Rank the steps from first to last. To rank items as equivalent, overlap them.Anna conducted an experiment that aimed to determine the deficiency symptoms of tomato plants placed in a hydroponic solution. Six bottles were prepared, and each bottle, except for the positive control, lacked a certain micronutrient. In the positive control, all nutrients were provided. Unexpectedly, the control setup still showed symptoms of micronutrient deficiency. Students later on found out that the relative humidity in the room was very high and transpiration was affected. 1.Explain the appearance of these symptoms in the positive control set-up in lieu of the importance of transpiration? 2.Theoretically, how will thermoregulation of tomato plants be affected if transpiration will not occur 3. Discuss internal factors that could affect the rate of transpiration of the tomato plant.
- If a mutation in a sodium channel in an Intestinal epithelial cell caused a marked decrease In the concentration gradient of sodium across the plasma membrane, which of the following would you expect to observe? a decrease in Na/K ATPase activity. an increase in the movement of glucose across the basolateral membrane to the extracellular space an increase in sodium/glucose co-transport into the cell across the apical membrane a decrease in cytoplasmic glucose concentrationWhich of the following statements are true? If false, correct them:(a) Boron deficiency leads to stout axis.(b) Every mineral element that is present in a cell is needed by the cell.(c) Nitrogen as a nutrient element, is highly immobile in the plants.(d) It is very easy to establish the essentiality of micronutrients because theyare required only in trace quantities.A deer eats 25kg of herbaceous material per day. The herbaceous material is approximately 20% dry matter(DM) and has an energy content of 10MJ.(kgDM)^-1. Of the total energy ingested per day, 25% is excreted as undigested material. Of the 75% that isn’t digested, 80% is lost to metabolic waste products and heat. The remaining 20% is converted to body tissue. How MJ are converted to body tissue on a daily basis? Calculate the percentage of energy consumed that Osborn’s converted to body tissue Draw a schematic of energy balance.