Roots vs Gravity

Root and Gravity Biology Honor Period 6 November 17, 2013 Word Count: 1519 Directory Issues ........................... .......................... ... ................. Three objectives .................... ... ... ... ... ...................................................... ........... 3 Hypothesis ......... ............................ .................................................................................................................................................. ..................................................... ................................. 3-4 Method ............ ........................................... ................................ .. 4-6 Data and results .......... .

Answer 1. The answer is different. The roots should fall toward the pulling force of gravity. The stem grows from gravity. The stem grows away from gravity, and the roots grow in the direction of gravity. Roots and stems respond to gravity. Due to weightlessness, the direction of growth is random

The terrain is the effect of gravity on plant growth and migration. In other words, the root grows and the stem grows. Geomorphology comes from two words, "geography" means the earth or the ground, and "tropical" means the movement of the plant caused by the stimulus. In this case, the stimulus is gravity. Plant parts grow upwards against gravity called negative geodesy, and root growth is called positive topography. The root of the plant, the end of the root is called the root cane. As they grow, it turns the roots downwards. Since the root canal contains cells with sensors called stones, it is important for geochemistry. Stones are a special part of root cells that settle on the lowest part of the root crown in response to gravity. This will speed up cell expansion.

The roots show positive geographical equilibrium. This means that they always move in the direction of gravity. It is observed in all plants, its roots always growing in the direction of gravity, never leaving it. This is necessary for the roots to grow in the soil, and the roots are the nutrients that the soil can absorb. The stem shows a negative ground, which is far from gravity. This is also observed and necessary in all plants, as the leaves growing from the shoots require sunlight for the photosynthesis necessary for plant survival. Because the sun can only come out from the ground, the shooting is upward.

The first challenge in planting plants in the universe is to grow plants without gravity. This encounters difficulties in the influence of gravity on root development and provides the proper kind of lighting and other tasks. In particular, the nutrient supply of the root and the biogeochemical cycle and microbial interaction of the nutrients in the soil matrix are particularly complex, but space agriculture under low gravity and microgravity has been demonstrated. NASA is helping to feed astronauts and plans to plant plants in space to bring psychological benefits for long-term space flight. In 2017, the International Space Station is in a plant growth plant, the fifth bakery of Chinese cabbage was distributed to the crew for consumption, the rest were used for research. Japanese artists used balloons to shoot flowers and bonsai trees in space.