(a) Under acidic conditions, all of the plant micronutrients become more available; (b) Mo availability increases as pH increase * A if a is correct B if b is correct C if both statements are correct D if neither statement a nor b are true
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(a) Under acidic conditions, all of the plant micronutrients become more available; (b) Mo availability increases as pH increase *
A if a is correct
B if b is correct
C if both statements are correct
D if neither statement a nor b are true
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- 43. Two soil samples, A & B, at same soil moisture levels are placed in contact with each other. Water will more likely move from soil B to soil A if their osmotic potentials, expressed in kPa, are: O A=-30; B=-70 O A=-10; B=+10 O A=-60; B=-10 O A=-50; B=-100 OA=-20%; B=-20An experiment was conducted 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. It was then discovered that the relative humidity in the room was very high and transpiration was affected. Explain the appearance of these symptoms in the positive control set-up in lieu of the importance of transpiration? How will thermoregulation of tomato plants be affected if transpiration will not occur?College students have conducted an experiment to determine the deficiency symptoms of tomato plants that is placed in a hydroponic solution. Each bottle out of the six bottles except for the positive control has lacked a certain micronutrient. In the positive control, all the nutrients were provided. However, the control setup showed symptoms of micronutrient deficiency unexpectedly. College students later found out that the room has a very high relative humidity and the transpiration was affected. Theoretically, how will the thermoregulation of tomato plants be affected of transpiration will not occur?
- Researchers have found that plants growing in soil with a low sulfur concentration suffer from severe growth inhibition and other structural deformities. Which of the following is the most likely reason for this outcome? A Plants in sulfur-deficient soil are unable to synthesize all of their required lipids. B с D Plants in sulfur-deficient soil are unable to synthesize all of their required carbohydrates. Plants in sulfur-deficient soil are unable to synthesize all of their required nucleic acids. Plants in sulfur-deficient soil are unable to synthesize all of their required proteins.Identify how the function of C4 biochemistry results in an increase in WUE (water use efficiency, unit C gain per unit H20 loss) and NUE (nitrogen use efficiency, unit C gain per unit leaf N) relative to a C3 plantAnna 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.
- Soil organic matter (SOM) samples have charge that is pH-dependent, and measurements for the cation-exchange capacities (CECS) of soil organic matter average around 150 cmol(+)/kg SOM at neutral pH. Meanwhile, smectite clay minerals have CECS that average approximately 100 cmol(+)/kg clay. Since these two phases are the dominant contributors to soil CEC, we can use SOM content and smectite content (if we can measure it) to estimate total soil CEC. What would be your estimate for the total CEC (in cmol(+)/kg soil, to the nearest 0.1 cmol(+)/kg soil) of a soil that contained 3.28 % SOM and 1.0 % smectite clay by weight?. 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?Match the following macronutrient with what a plant uses it for. Making amino acids, like Glycine It is the ion in the middle of chlorophyll a and chlorophyll b 1. Nitrates, NO3 2. phosphates, PO4*- Deoxyribonucleic acid, ribonucleic acid, and phospholipids for membranes. 3. Potassium, K* 4. Magnesium, Mg²+ Photosynthesis and cellular respiration. > > >
- You have been presented with leaf samples with various nutrient deficiency symptoms shown below. (i) Identify missing nutrients of a, b, c, and d based on Figure 2 below. b Maine Organic Farmers and Gardeners Association University of Massachusetts, Amherst d Allotment Garden Cellmax Nutrients Figure 2: Nutrient deficiency symptoms of tomato Where would you expect to find symptoms of nutrient deficiency for mobile and immobile nutrients? Also, determine the mobility of missing nutrients identified in Question 2 b) (i). (ii)20 (8) a. Which one of the following phenomena is responsible for transportation of food through phloem tissue : a. Mass flow b. Diffusion C. Osmosis b. The reason for my answer is: a. Movement of particles for higher concentration to lower concentration b. Movement of particles of a material to one direction due to gravity C. Movement of particles of a material to direction due to pressure gradient d. Movement of materials as a bulk due to pressure gradientA corn farmer has approached you with various leaf samples with symptoms shown as below. Identify missing nutrients of a, b, e, and d based on Figure 1 below. (i) (a) Pioneer Seeds Australia Croplife (c) (d) https://agcrops.osu.edu/ IPNI Figure 1: Nutrient deficiency symptoms of corn Where would you expect to find symptoms of nutrient deficiency for mobile and immobile nutrients? Also, detemine the mobility of missing nutrients identified in Question 2 b) (i). (ii)
