When the ion concentration inside root cells is

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Question 3 of 6 4.0 Points When the ion concentration inside root cells is higher than the concentration in the soil solution, ions in the soil solution can enter root cells by means of A. active transport only. B. simple diffusion only. C. simple diffusion and facilitated diffusion. D. facilitated diffusion and active transport. E. simple diffusion and active transport. Reset Selection Mark for Review What's This? Question 4 of 6 4.0 Points Where bulk flow occurs in plants either in xylem or phloem, the stream consists of Reset Selection
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5/20/13 4:18 PM 2013 Problem Set 7 Plant Biology Lectures 3-7 Page 10 of 13 Mark for Review What's This? Question 5 of 6 4.0 Points The uptake of ions in plant cells is influenced by the Reset Selection Mark for Review What's This? Question 6 of 6 4.0 Points Which of the following is true about the movement of solutions in the apoplast (the transport route through intercellular spaces)? Reset Selection Mark for Review What's This? Part 4 of 4 - Nutrition Question 1 of 7 4.0 Points Tanya gives up trying to grow plants in soil and instead begins hydroponic farming, where plants are suspended in a soil-less mineral nutrient solution made by simply by supplying KH 2 PO 4 , Ca(NO3) 2 and MgSO 4 , dissolved in tap water. Her plants grow very successfully, despite the fact that she has only supplied a few nutrients. Why? A. macronutrients are the only nutrients required B. the plants can fix all other nutrients needed C. tap-water contains enough micronutrients to supply the plants' needs D. tap-water is rich in nutrients E. all the above are correct
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5/20/13 4:18 PM 2013 Problem Set 7 Plant Biology Lectures 3-7 Page 11 of 13 Reset Selection Mark for Review What's This? Question 2 of 7 4.0 Points Tanya grows her own vegetables: her lettuce are puny, so she decides to add fertilizer to the soil. The package says add a teaspoon per 10 square feet: she decides she wants really BIG lettuce, so she adds a cup of fertilizer per square foot. To her surprise (and horror) the lettuce wilt, turn brown and die. What is the initial reason the plant wilts? Reset Selection Mark for Review What's This?
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