Question

ВРЕМЯ НА ВЫПОЛ ЗАДАНИЕ No3 ТЕКСТ ЗАДАНИЯ Как вы уже знаете, тропизмы бывают положительными и отрицательными. Выполните прави соотношение определений и приведенных примеров. Количество соединений: 2 рост корня растения в сторон вредного раздражителя положительный тролизм движение рассады, стоящей на подоконнике, в сторону Окна отрицательный тропизм Впер - Зад​

Answer 1

Ответ:

вот. Надеюсь помогла!

Объяснение:

положительный тропизм - движение рассады, стоящей на подоконнике, в сторону окна

отрицательный тропизм - рост корня растения в сторону, от вредного раздражителя

Answer 2

Positive Tropism: Root Growth of a Plant towards a Beneficial Stimulus

Positive tropism refers to the growth or movement of a plant towards a beneficial stimulus. In the case of root growth, positive tropism occurs when the roots of a plant grow towards a favorable or beneficial environment. One example of positive tropism is the growth of plant roots towards water or nutrients in the soil.

For example, when a plant is placed in an environment where there is a higher concentration of nutrients on one side, the roots of the plant will grow towards that side to absorb the nutrients. This is known as positive geotropism, as the roots are growing towards the force of gravity to reach the nutrients [[1]].

Another example of positive tropism is phototropism, which is the growth or movement of a plant towards light. When a plant is placed in an environment with a light source, the stem of the plant will grow towards the light to maximize photosynthesis. This is an adaptive response that allows the plant to optimize its energy production [[2]].

Negative Tropism: Movement of Seedlings Away from a Harmful Stimulus

Negative tropism, on the other hand, refers to the growth or movement of a plant away from a harmful or unfavorable stimulus. In this case, the plant exhibits a negative response to the stimulus by moving or growing away from it.

For example, if a plant is exposed to a harmful chemical or toxin, the roots of the plant may grow away from the source of the toxin to avoid absorption. This is known as negative chemotropism. The plant senses the presence of the harmful substance and responds by growing in the opposite direction to minimize damage [[3]].

Another example of negative tropism is hydrotropism, which is the growth or movement of a plant away from water. This may occur when a plant is exposed to excessive moisture or flooding. The roots of the plant will grow away from the waterlogged area to prevent waterlogging and promote better oxygenation of the roots [[4]].

Conclusion

In summary, tropisms can be either positive or negative, depending on the response of the plant to a particular stimulus. Positive tropism involves the growth or movement of a plant towards a beneficial stimulus, such as the growth of roots towards water or the movement of a stem towards light. Negative tropism, on the other hand, involves the growth or movement of a plant away from a harmful stimulus, such as the growth of roots away from toxins or the movement of a plant away from excessive moisture. These tropisms are adaptive responses that allow plants to optimize their growth and survival in different environments.

I hope this explanation helps! Let me know if you have any further questions.