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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!!)
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoGravitropism (also known as geotropism) is a turning or growth movement by a plant or fungus in response to gravity. It is a general feature of all higher and many lower plants as well as other organisms. Wikipedia
Wiki User
∙ 9y agoThere are many stimuli that make a plant's stem system grow up and roots to grow down. The roots absorb water and will grow downward in order take water up into the plant.
Wiki User
∙ 9y agoGravity is the stimulus which makes roots grow downwards. This is called positive geotropism or positive gravitropism.
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List of plants that have roots that only grow down?
most plant roots grow down, not up!
Why do the roots grow down and the leaves grow up?
roots have more grip to hold on to the ground during storms..and roots soak water much more that leaves do..
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 is gravitropism a crucial plant adaptation?
Gravitropism is a plant's ability to grow in accordance to gravity. The roots of a plant are 'programed' to grow towards gravity (positively geotropic, down) and the stems are 'programed' to grow away from gravity (negatively geotropic, up). Plants do have some roots and stems that are not affected by gravity, these are ageotropic. Other parts grow at right angles to gravity, they are plageotropic. All these different forms of Gravitropism give a plant its shape; without this a plant would not be able to anchor itself in the ground, find sunlight, or grow properly in accordance to its surroundings.
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?
yes
How do plant responses help plants to survive?
Some plants grow up and down, the directions being determined by gravity. (stem up, roots down)
List of plants that have roots that only grow down?
most plant roots grow down, not 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.
How does gravitropism effect plants?
Gravity. Gravitropism is when an object either moves towards or away from the force of gravity
Why do the roots grow down and the leaves grow up?
roots have more grip to hold on to the ground during storms..and roots soak water much more that leaves do..
What is the effect of geotropism on root growth?
helps the roots grow down and the stalk grow up
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 is gravitropism a crucial plant adaptation?
Gravitropism is a plant's ability to grow in accordance to gravity. The roots of a plant are 'programed' to grow towards gravity (positively geotropic, down) and the stems are 'programed' to grow away from gravity (negatively geotropic, up). Plants do have some roots and stems that are not affected by gravity, these are ageotropic. Other parts grow at right angles to gravity, they are plageotropic. All these different forms of Gravitropism give a plant its shape; without this a plant would not be able to anchor itself in the ground, find sunlight, or grow properly in accordance to its surroundings.
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 stems grow up?
It Is Their Response To Gravity
What is a material the plant take up through it's roots and stems?
Water and minerals
