Plant Physiology - Mineral Nutrition Questions and Answers

Use the diagram below and your knowledge of Earth Science to place the following in order from oldest to youngest Line A A represents a buried erosional surface unconformity 11 7 6 Youngest Oldest

Discuss your investigation about reducing the effect of acidity on seed germination with your classmates 1 Describe your design solution and how you conducted your experiment 2 Was your solution successful Explain by citing evidence from your experiment 3 How could you refine your solution to make it better 4 How does your design solution compare to the designs of other student

1 Why are the four major groups of dietary fat can be classified in this particular order 30 50 words 1 Polyunsaturated fats containing omega 3 fatty acids 2 Monounsaturated fats and polyunsaturated fats that do not contain omega 3s 3 Saturated fats 4 Trans fats 2 Using your knowledge of lipid structure and properties and any other scientifically reliable online or printed resources create a 150 word explanation of how different types of dietary fat affect our cardiovascular health Hint Use such key terms as cholesterol HDL LDL and arteries Make sure to use your own words and cite outside sources that you have used 3 In 100 words indicate the major sources of fat in your diet and characterize them in terms of healthy and unhealthy If your fat diet is not heart healthy provide specific recommendations on how to increase your consumption of healthy fats and decrease your consumption of Inhealthy fats Recommend specific foods Take into account your taste preferences If your fat diet is mostly heart healthy provide specific recommendations on how to increase the consumption of healthy fats and decrease the consumption of unhealthy fats for a friend or a relative Take into account that person s taste preferences Rubrics

3 Two new species of plants were introduced into an area that was low in available nitrogen compounds in the soil One formed nodules and one did not Which species would you reasonably expect to grow more robustly Explain Answer Type your answer here Score for Question 5 of 2 points 4 How does the location of the nodules relate to the function of the nodule Explain Answer Type your answer here Score for Question 6 of 2 points 5 This diagram shows two groups of plant cells one with Rhizobium and one without the bacteria Label which is which and explain the obvious size difference using observations from Part C of the lab in your answer Answer Type your answer here

Students in sixth grade science spent several weeks studying conservation and recycling Students then investigated how different recycled products affected plant growth The second period class compared the effect of different aged grass compost on the height of bean plants Because the decomposition that occurs during composting is needed to release the nutrients in the grass this class predicted that older grass compost would produce taller bean plants Three flats of bean plants 25 plants in each flat were grown for 30 days All of the bean plants had been planted 10 days before the start of the investigation Flat 1 received 450g of 3 month old compost Flat 2 received 450g of 6 month old compost Flat 3 received no compost All of the bean plants received the same amount of water and sunlight each day At the end of 30 days all of the bean plants were measured in cm and the data recorded Independent variable Dependent variable Control group Age of th 30 days Choose

3 1 Entra Answer the questions below The melanic peppered moth s dark coloring is passed to its progeny and thus is an inheritable trait This moth is shown in Figure 1 Figure 1 Tito Researchers have studied the melanic peppered moth in both Britain and the United States from the ate 1950s to the mid 1990s These researchers ave monitored both the population of the melanic eppered moth and the levels of soot pollution in attempt to correlate the two values dy 1 searchers calculated the percentage of melanic ths at sites in both Britain and the United tes and tabulated this data over a course of e than 30 years This calculation is shown in re 2 top To account for any change in the entage of melanic moths the total number of s during June and July were also observed g the same course of more than 30 years calculation is also shown in Figure 2 bottom melanic moths total number of moths 100 90 80 10 600 500 400 300 200 100 0 1959 1963 1959 L 1963 1967 1967 1971 1975 1979 1983 1971 1975 1987 1991 1995 Figure 2 1979 1983 1987 1991 1995 Study 2 After analyzing the results from Study 1 the researchers then looked at the pollution levels in both the United States and in Britain The pollution levels from Detroit US over a span of 26 years is shown in Figure 3 top Accordingly the pollution levels from a site in Britain over a span of 26 years is shown in Figure 3 bottom 1 988242SO concentration g m suspended particulates g m 35 0 90 80 60 50 1964 year in Detroit year in Britain Figure 3 Lesson 3 Support of Hypotheses Part 1 The scientists hypothesized that the population of the melanic peppered moth decreased with the decrease of particulate air pollution because the moths were then more susceptible to predation and thus could not pass their genes on to the next generation Do Figures 2 and 3 support this hypothesis A No the decrease of the peppered moth population correlates with the overall decrease of moth numbers B Yes the decrease of the peppered moth population correlates with the decrease of SO and particulate pollution C No there was no noticeable decrease in the numbers of the peppered moth population D Yes the decrease of the peppered moth population and the total moth population correlate with the decrease of SO and particulate pollution 2 Suppose it is discovered that rising pollution levels of certain carbon compounds not tested in this study led to an increase in the overall percentage of melanic moths in the general moth population This discovery would most strongly contradict which of the following figures F Figure 2 top G Figure 2 bottom H Figure 3 top J Figure 3 bottom 3 Suppose a separate study confirms that the percentage of melanic moths decreases with decreasing levels of pollution Do the results of Study 2 support the statement The number of melanic moths fell in Detroit but increased in Great Britain A Yes because the graphs show decreasing levels of pollution in Detroit but increasing levels of pollution in Great Britain B Yes because the graphs show a relatively stable amount of melanic moths in Detroit but a sharp drop in melanic moths in Great Britain C No because pollution levels in both Detroit and Great Britain fell which would indicate a decrease in the percentage of melanic moths for both countries D No because pollution levels in Great Britain decreased while the pollution levels in Detroit increased which would indicate that the number of melanic moths increased in Detroit and fell in Great Britain

It is very common for plants to form beneficial associations with cyanobacteria and or fungi as these organisms help the plant absorb or acquire life sustaining environmental substances such as nitrogen True False

The general ordered sequence of a virus infection is O penetration replication release assembly attachment O attachreent penetration replication assembly release replication assembly penetration release attachment assembly replication release attachment penetration replication assembly release penetration attachment

water from an area of higher water concentration to an area of lower water concentration across a semipermeable membrane solute from an area of higher solute concentration to an area of lower solute concentration across a semipermeable membrane water from an area of higher solute concentration to an area of lower solute concentration across a semipermeable membrane

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ver the next question Many gardeners believe that certain edible herbs like oregano sage and rosemary taste better if deprived of water and nutrients You decide to test the hypothesis that the frequency of watering influences the flavor of sage You grow two sage plants from seed side by side in two separate pots You water one every other day as a control treatment and the other only once a week as an experimental treatment Then you invite 50 people over for a taste test Each receives two samples of sage leaves marked as A and B so that they do not know which sample is from which treatment Your friends rate each sample s flavor on a scale of 1 5 You compare the average scores for each plant W Less Frequently Watered More Frequently Watered Q3 10 As with any experiment your setup has limitations Which of the following ideas for increasing replication is MOST likely to improve your ability to test the hypothesis that watering frequency affects the taste of sage in general Increase the number of leaf samples taken from each plant Increase the number of sage plants in the experimental group Increase the number of sage plants in both control and experimental groups O Do the same test on rosemary and oregano in addition to sage

Decomposers are an important part of them to the ecosystem return needed nutrients to the soil A yet plants don t depend on B and plants rely on C but plants don t need

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A turgid cell that you are studying has a solute potential of 1 3MPa What is its approximate water potential 1 1 3 O2 0 3 3 2 3 4 0 3 5 1 3

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20 0 Na ICF 0 9 Na ECF 0 8795