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Its basically because of geotropism (when it grows downwards/follows gravity) plants always have their roots growing down because if they didn't grow down, they wouldn't support a plant very well. the stem always grows up, generally for the same reason, but also because the sun is up. phototropism comes into play here. plants always try to grow towards the sun, enabling them to have a good source. So the root grows downwards to get the nutrients/find the nutrients that the plant needs to grow and stay living.-(don't ask me y this part has a line through it!!)
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In a pot of seedlings the roots of every seedling grow straight down and the stem of every seedling grows straight up. Which of these explains this?
The phenomenon where the roots of seedlings grow straight down and the stems grow straight up is explained by gravitropism. Roots exhibit positive gravitropism, responding to gravity by growing downward, while stems display negative gravitropism, growing upward against the pull of gravity. This adaptive behavior ensures that roots can access water and nutrients in the soil, while stems can reach sunlight for photosynthesis.
List of plants that have roots that only grow down?
Most plants have roots that grow both vertically and horizontally to varying degrees. However, taproots such as carrots and radishes primarily grow downwards, as do fibrous roots of grasses. Deep-rooted plants like oak trees and dandelions also have roots that grow predominantly downwards.
What are the structures in stems that carry fluids up and down the stems?
The two structures in the stem of a plant are xylem and phloem. Xylem goes up and carries water and nutrients to the the leaves while phloem goes down and carries sugars to the roots of the plant.
Why do stem go upwards?
Plant stems usually grow up while their roots grow down. This is due to gravity and solar energy. Plant cells respond to the pull of gravity growing roots down while growing up to maximize sun exposure.
Why do roots grow toward the seed?
In general roots grow down and leaves and stems grow up. This is determined by gravity. If there are good growing conditions such as water, oxygen, temperature and nutrients in the soil that favor the development of the roots, the roots will grow more in that area. Roots do not sniff out conditions, they have to arrive on their own and will then "relate" to those conditions. Deep watering is beneficial because the soil further from the surface will dry out more slowly on dry days. From my experience plant actually grow best when they are watered frequently in small amounts, of course if for any reason you can't water for sometime the plants will suffer, so deep watering is more secure.
Do Roots grow up and stems grow down?
No, roots generally grow downwards into the soil to absorb water and nutrients, while stems grow upwards above ground to support the plant and transport water and nutrients from the roots to the rest of the plant.
How does gravitropism effect plants?
Gravity. Gravitropism is when an object either moves towards or away from the force of gravity
What is the effect of geotropism on root growth?
helps the roots grow down and the stalk grow up
Does the stem grow above or below the ground?
Roots grow down, into the soil and stems have leaves on them which need sunlight to grow so therefore they grow up out of the soil.
List of plants that have roots that only grow down?
Most plants have roots that grow both vertically and horizontally to varying degrees. However, taproots such as carrots and radishes primarily grow downwards, as do fibrous roots of grasses. Deep-rooted plants like oak trees and dandelions also have roots that grow predominantly downwards.
What are the structures in stems that carry fluids up and down the stems?
The two structures in the stem of a plant are xylem and phloem. Xylem goes up and carries water and nutrients to the the leaves while phloem goes down and carries sugars to the roots of the plant.
Can you grow tomatoes upside down vs the traditional method?
You can try but the plant will try to grow upwards. All plants grow up and their roots grow down. This is coded in their DNA.
Why do stem go upwards?
Plant stems usually grow up while their roots grow down. This is due to gravity and solar energy. Plant cells respond to the pull of gravity growing roots down while growing up to maximize sun exposure.
Why do stems grow up?
It Is Their Response To Gravity
Will a chopped down banana tree with no roots still grow if it is replanted and taken care of?
New banana trees grow from the roots of the old banana trees. After a banana tree bears fruit it dies. Then its roots send up several new banana trees. The chopped down part of the tree will probably not grow. The roots will probably send up new trees. You can dig up one of those and get a new tree.
What is a material the plant take up through it's roots and stems?
Water and minerals
Is a material the plant takes up through its roots and stems.?
Water and minerals
