About 200 years ago, Jan Baptista van Helmont wanted to know where growing plants get the materials necessary for increases in size. He planted a tree seedling weighing 2.2 kilograms (5 pounds) in a barrel filled with 90 kilograms (200 pounds) of soil and then watered the tree regularly. After five years, the tree had gained almost 75 kilograms (164 pounds), and the soil's weight was unchanged. He incorrectly concluded that the tree had gained all of its additional weight by absorbing water. How did the tree really gain most of its weight?

About 200 years ago, Jan Baptista van Helmont wanted to know where growing plants get the materials necessary for increases in size. He planted a tree seedling weighing 2.2 kilograms (5 pounds) in a barrel filled with 90 kilograms (200 pounds) of soil and then watered the tree regularly. After five years, the tree had gained almost 75 kilograms (164 pounds), and the soil's weight was unchanged. He incorrectly concluded that the tree had gained all of its additional weight by absorbing water. How did the tree really gain most of its weight?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter8: Photosynthesis

Section: Chapter Questions

Problem 12TYK

See similar textbooks

Similar questions

You are responsible for landscaping a very large urban park. You choose a popular flowering garden plant, the hydrangea, to plant throughout the park. The nursery you purchased the plants from said that the flowers should be pink. After a few months, though, you find—to your surprise—that the plants throughout the park display a variety of flower colors ranging from purple and blue, to pink and white, and finally, to all shades in between. After a suggestion from a friend, you test the soil where each plant was planted, and you determine that the color of the flowers seems to correlate with the acidity of the soil in which the plant was placed. Choose the answer that best fits the blank. The parentheses after the blanks are the choices. Since the flowers have shown such a broad range of colors, with no clear distinction between one color type and the next, this is an example of _________ (continuous variation, codominance, pleiotropy). The acidity of the soil is an example of…
Why do trees grow and stop at different heights? For example an American Beech tree grows to a height of 50-70 feet but the Coastal Redwood grows to a height of 380 feet. Why is there such a big difference in growth and what makes the tree not grow forever?
leaves fall off when growers place plastic sleeves to cover the plant because of poor circulation and the lack of oxygen causes the plants not to breathe. Even though, the sleeves are a temporary fit for transport and shipping, what other items do you think the growers can use instead of the plastic sleeves to help?
Which of the following plant structures is necessary for transpiration to occur? a. Sieve tubes c. Fruits b. Leaves d. Roots
The following experiment was carreid out at ILC Laboratories to measure the effect of different nutrient solutions on bean root growth. Three nutrient solutions were made: 1.) A solution containing all required nutrients 2.) A solution containing all required nutrients except nitrogen; and 3.) distilled water. The results recorded for root length and leaf colour were as follows: Solution 1.) 47 mm; deep green Solution 2.) 17 mm; pale green-yellow Solution 3.) 14 mm; pale green-yellow a.) explain how the solution ranked in relation to the other two; b.) state the evidence that supports your answer; and c.) explain why the plant grew the way it did
In the early 1600s, Jean Baptista van Helmont investigated how plantsacquire new mass as they grow. He weighed a willow shoot andplanted it into soil that he had also weighed. After 5 years of addingnothing but water to the plant, he found that the soil had lost only alittle weight, while the plant had grown from 2 kg to about 76 kg. Hetherefore concluded, incorrectly, that water was the sole source of theadded plant material. What other source did he fail to consider in hisexperiment?
Explain why the seeds of fruit trees like durian, rambutan, and avocado could not be stored in the cold seed storage facility for a long period of time.
About 200 years ago, Jan Batista van Helmont wanted to know where growing plants get the materials necessary for increase in size. He planted a tree seedling weighing 2.2 kilograms (5 pounds) in a barrel filled with 90 kilograms (200 pounds) of soil and then watered the tree regularly. After 5 years, the tree had gained almost 75 kilograms (164 pounds), and the soils weight was unchanged. He incorrectly concluded that the tree had gained all of its additional weight by absorbing water. How did the tree really gain most of its weight?
Oscar and Lucinda meet in a tropical rain forest and fall in love, and he carves their initials into the bark of a tree. They never do get together, though. Ten years later, still heartbroken, Oscar searches for the tree. Given what you know about primary and secondary growth, will he find the carved initials higher relative to ground level? If he goes berserk and chops down the tree, what kinds of growth rings will he see?
why is pressure higher in parts of the phloem Where sugar is being loaded than in parts were sugars been removed?
Plants that grow in the understory of the tropical rainforest under a heavy canopy of tall trees have developed adaptations to the dark, hot, and moist environment. Knowing that darker green leaves are richer in chlorophyll than lighter green leaves, which of the following characteristics would you expect to find in their leaves? A. small dark green leaves with few stomata B. small pale green leaves with few stomata C. large dark green leaves with many stomata D. large pale green leaves with many stomata
39 You are growing tomatoes and your plants are healthy and nearly one metre tall. Youworry that they might get blown over by the wind, so you decide to lend them extrasupport with a wire frame. You accidently break the growing tip off the top of one ofthe plants. After a few weeks, you notice that instead of growing tall like the otherplants, the plant with the broken tip has grown denser with thicker lateral shootsthan the other plants.Answer the following questions in sentence format, that are related to the abovecase study. bc) What three plant hormones (plant growth regulators) and signaling moleculeare involved? And What hormone could you apply to the cut tip to reduce lateral shootdevelopment?