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well the way that seeds know which way is up is because they are much smarter then you may think.
seeds have a sense of where the sunlight is and will continually thrive until they reach the area of sunlight and keep growing to get closer to the sunlight
hope that helps alot i am sure it will
warm regards
Surf babe
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThe suns rays are felt by a plant and used by a plant in a number of ways, such as photosynthesis. Because sunlight is energy, a plant can sense which side of itself is receiving more light, and which side is receiving less light. On the side with less light, most plants will accumulate a chemical called auxin that tells those cells to elongate, making the stem of the plant bend towards the light.
Wiki User
∙ 14y agoRoots grow down and stems grow up in response to gravity (statoliths)
Wiki User
∙ 15y agoYes they do, that is why seedlings grow upwards.
Wiki User
∙ 9y agoGravitropism is the process by which plants sense and respond to the direction of gravity. This process also takes place in fungus and animals as well.
Wiki User
∙ 14y agoyes.
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What does cellulose provide for plants?
Support against gravity.
How do plant responses help plants to survive?
Some plants grow up and down, the directions being determined by gravity. (stem up, roots down)
In which direction do plants roots grow?
The roots of most plants grow towards the pull of gravity.
What is the difference between positive and negative gravitopism?
Gravitopism is a plants reaction to gravity
What are organisms in the lowest trophic level of an ecosystem?
Plants are in the lowest trophic level of an ecosystem. Their level is the lowest because the needs of plants are the least complex compared to the other organisms present in an ecosystem.
What is a gravity sensor?
A "sensor" is used to detect or measure something; in this case, it would be something to detect or measure gravity.
Can plate tectonics affect gravity waves?
In theory an earthquake moves enough matter quickly enough to create a gravity wave, but in practice, that gravity wave is much too weak for us to detect at our present level of technology.
What is the photoreceptors that allow plants to detect day length?
Phytochrome is the photoreceptor that allows plants to detect day length.
What is the photoreceptor that allows plants to detect day length is called?
Phytochrome is the photoreceptor that allows plants to detect day length.
What is the photoceptor that allows plants to detect day length called?
Phytochrome is the photoreceptor that allows plants to detect day length.
Where are the never fibers that detect gravity and speed located?
otoliths
How do plants detect seasonal changing?
Plants detect seasonal changes by temperature and day length.Plants detect seasonal changes by the amount of day light.
An astrounaut inside a small space ship orbiting around the earth cannot detect gravity.Can a space station of much bigger size than the space ship hope to detect gravity?
The chances are pretty low because it doesn't matter on the size to detect gravity.
What is meaning of water level sensor?
Level sensors are designed to detect the level of substances that flow. The idea behind a water level sensor is that it can detect the level of water in any given scenario.
An astronaut inside a small space ship orbiting around the earth cannot detect gravity.If the space station orbiting around the earth has a large size can he hope to detect gravity?
If the size of the space station is large enough, then the astronaut will detect the change in Earth's gravity (g).
What does PIR detect?
detect any changes in the environment (noise level, vibration, temperature)
Does the sun have gravity or atmosphere?
yes it has gravity, that's how the plants orbit it.
