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What is negative gravitropic response?
Negative gravitropic response refers to the growth movement of a plant or its parts in the opposite direction of gravitational pull. This phenomenon is often observed in the stems and shoots of plants, which grow upward, away from the soil, as a means to access sunlight for photosynthesis. This response is primarily driven by the redistribution of growth hormones, such as auxins, which promote cell elongation on the lower side of the plant, causing bending and upward growth.
Why does the sum of negative 4 and 3 complain more than the sum of negative 3 and 5?
The phrase "complain more" is likely a playful way to express that the sum of negative 4 and 3, which equals -1, feels more negative than the sum of negative 3 and 5, which equals 2. In essence, -1 can be seen as a less desirable outcome compared to 2, which is positive. Therefore, the "complaint" stems from the greater negativity of -1 compared to the positivity of 2.
Why in multiplying same signs the answer is always positive?
When you multiply two numbers with the same sign, you are essentially combining their magnitudes in a way that reflects their directional relationship. For instance, multiplying two positive numbers indicates that you are increasing a quantity in the same direction, resulting in a positive outcome. Similarly, multiplying two negative numbers can be thought of as reversing the direction twice, leading to a net positive result. This consistent rule stems from the properties of numbers and how they relate to one another on the number line.
Do people eat stems?
There are several plants that have edible stems; asparagus and celery come to mind.
Do onions have stems?
yes onions do have stems as you can see the stem sticking out in the middle and if they didnt have stems they wouldnt be able to hold on to their natural resorces - - Samantha 10 years old
What is it called when roots and steam grow in a direction that you determined?
When roots and stems grow in a specific direction due to environmental stimuli, it is referred to as "tropism." Roots typically exhibit positive gravitropism, growing downward in response to gravity, while stems often show negative gravitropism, growing upward. Additionally, plants can exhibit phototropism, where stems grow toward light.
What is the difference between positive and negitve geotropism?
Geotropism (also called gravitropism) is the turning or growth movement by a plant or fungus in response to gravity. Roots show positive geotropism (grow toward gravity - down) and stems show negative geotropism (grow away from gravity - up).
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.
Does geotropism determine the direction of growth?
Yes, geotropism DOES determine the direction of growth. Negative geotropism is when a section of the plant grows upwards. For example, stems grow upward. Positive geotropism is when a section of the plant grows downwards. In this case, a plant's roots would be the perfect example.
What tropisms plants need to survive varius levels in the forest?
Plants in the forest need to display positive phototropism to grow towards light for photosynthesis. They also exhibit negative gravitropism by growing their roots downward and stems upward to seek nutrients and support. Additionally, plants may show thigmotropism, bending or growing in response to physical touch or contact with other objects in the forest.
What is the difference between positive and negative gravitopism?
Positive gravitropism is the growth movement of a plant towards the gravity source, like roots growing downwards, while negative gravitropism is the growth movement away from the gravity source, like stems growing upwards. Both responses help plants optimize their growth in relation to gravity.
Examples of plants of geotropism?
Examples of plants that exhibit positive geotropism include roots, which grow downward into the soil, and stems, which grow upward towards the light. Negative geotropism is seen in plants like vines, which grow away from the force of gravity, and in some flowering plants, whose pollen tubes grow upwards to reach the ovules.
Stems and leaves grow using positive what?
stems and leaves grow using positive phototropism. That means growing towards the source of light. Mostly we reffer to the sun in this case. Even so, stems and roots can as well grow away from the source of light, that is negative phototropism.
What happens to stems of plants placed on their sides?
When plant stems are placed on their sides, a phenomenon called gravitropism occurs. The plant senses the change in gravitational force and redirects its growth to orient itself upright. The stems will grow in the direction of the earth's gravitational pull to reach an upright position.
What signaled the stems to grow upward?
Warm sunlight.
Is geotropism internal or external stimulus?
Geotropism is an external stimulus. It refers to the growth response of plants to gravity, where roots grow downward (positive geotropism) and stems grow upward (negative geotropism). This response is influenced by the gravitational pull, making it an external factor affecting plant growth and orientation.
When a plant responds to the earth's gravitational pull what is it called?
When a plant responds to the earth's gravitational pull, it is called gravitropism. This phenomenon involves the growth response of plant organs, such as roots growing downward and stems growing upward, in relation to gravity.
