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Mnenie [13.5K]
3 years ago
6

Phytochrome is a plant pigment protein that:

Biology
1 answer:
densk [106]3 years ago
4 0

Answer:

mediates morphological changes in response to red and far-red light

Explanation:

Phytochrome is a blue-green protein pigment that participates in plant physiology in response to periodic light phenomena, responsible for numerous developmental processes. This substance, in two possible forms: phytochrome R (inactive) and F (active), is dissolved in the hyaloplasma of plant cells, capturing specific wavelengths from sunlight.

Depending on the time of day, ie the daily light, these two types of phytochrome can convert to each other, according to the wavelength absorption that comprises the frequency of the red color (long or short).

Thus, during the day, plants capture the red wavelength (660nm), transforming the phytochrome R and F, as well as the  far-red wavelength (760nm), to a smaller extent, inverting the phytochrome F to R.

As the variation in daily light decreases (late afternoon), plants begin to capture the  far-red wavelength more intensely, concentrating more phytochrome R than F. This inactivation action remains in the dark (during night). Therefore, the perception of this oscillation induces the vegetables to organic behaviors combined with the photoperiod.

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8 0
3 years ago
Explain how the heliocentric model has been modified with the help of telescopes and probes ?
baherus [9]

Answer:

They collect more information.

Explanation:

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6 0
3 years ago
The world's largest ocean is the
Ksju [112]

\huge\purple{Hi!}

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5 0
2 years ago
Which describes a concept that was not previously known but but was developed as a direct result of Mendel’s experiments with pe
Ratling [72]

Answer:

The fundamental law of inheritance.

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5 0
3 years ago
Read 2 more answers
There are no known motor proteins that move on intermediate filaments (IFs).
Harlamova29_29 [7]

Answer: The correct option is E ( Intermediate filaments are unpolarized).

Explanation:

Intermediate Filaments are usually associated with cells that can withstand mechanical stress which includes claws of animals, hair and makes up the dead remnants of the epidermal cell of the skin. Therefore without the supporting network of intermediate filaments, an epithelium remains intact but the cells are prone to damage by abrasive forces.

Intermediate filaments are so named because they are thicker than actin filaments and thinner than microtubules or muscle myosin filaments

The properties or characteristics of an intermediate filaments that explains the lack of motor proteins is as a result of its subunits which are elongated, not globular and are associated in an anti-polar manner. Therefore, the overall filament has no polarity, and therefore no motor proteins move along intermediate filaments

5 0
3 years ago
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