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What contains light-sensitive cells that changes length of days and nights?
Nothing can change the length of day and night except the normal seasonal progression.
What does the length of night or dark periods control in flowering plants?
The length of night or dark periods controls the process of photoperiodism in flowering plants, which determines their flowering time. Plants can be classified as short-day, long-day, or day-neutral based on their flowering response to varying lengths of light and darkness. In short-day plants, flowering is triggered when nights are longer, while long-day plants require longer daylight periods to initiate flowering. This mechanism allows plants to synchronize their reproductive cycles with seasonal changes for optimal growth and seed production.
When are day and night the same length and what is the phenomenon called?
The length of day and night is equal at the Vernal and Autumnal equinox.
Is inhibiting of flowering in short day plants a phytochrome response?
Yes, the inhibition of flowering in short day plants is indeed a phytochrome response. These plants require a specific light duration, typically shorter days, to initiate flowering. Phytochromes, which are light-sensitive proteins, play a crucial role in detecting the light conditions and triggering the flowering process by regulating gene expression in response to the length of day and night. When light exposure is insufficient (long days), phytochrome activation prevents flowering.
Why short day and long day are not the best descriptive terms for these types of flowering plants?
The terms "short day" and "long day" can be misleading because they imply that the plants rely solely on the duration of light exposure to trigger flowering. In reality, these plants respond to the relative length of darkness rather than light, as they are sensitive to the photoperiod's nighttime duration. Additionally, environmental factors such as temperature and light quality can also influence flowering, making these terms overly simplistic. A more accurate description would focus on the plants' responses to the length of darkness they experience.
When the seoson change some plants Respond to changes in what?
The length of day and night
What contains light-sensitive cells that changes length of days and nights?
Nothing can change the length of day and night except the normal seasonal progression.
What is the response of plants or animals - to changes in the length of day or night - called?
This response is called, photoperiodism.
What is length of the day in a autumnal equinox?
During the Autumn equinox the length of the day and night are nearly equal. The length of the day on the equinox is approximately twelve hours.
How does critical night length control photoperiodism?
Photoperiodism is the response of the plant to daylight and darkness. For short day plants it will bloom in darkness and when darkness exceeds critical night length, for long day plants it will bloom during daylight and when darkness is less than the critical night length.
What does the length of night or dark periods control in flowering plants?
The length of night or dark periods controls the process of photoperiodism in flowering plants, which determines their flowering time. Plants can be classified as short-day, long-day, or day-neutral based on their flowering response to varying lengths of light and darkness. In short-day plants, flowering is triggered when nights are longer, while long-day plants require longer daylight periods to initiate flowering. This mechanism allows plants to synchronize their reproductive cycles with seasonal changes for optimal growth and seed production.
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 phenomenon called when day and night are the same length?
The length of day and night is equal at the Vernal and Autumnal equinox.
Do plants time the night or the day?
night
What is the photoceptor that allows plants to detect day length called?
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.
When are day and night the same length and what is the phenomenon called?
The length of day and night is equal at the Vernal and Autumnal equinox.
