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Also known as photoinhibition, this is caused by the absorption of too much light energy. It primarily affects photosystem II (chlorophyll a), though the exact mode of action is unknown. The damage is generally reversible, but long-term exposure to excessive light may generate damaging oxygen radicals, and result in degradation of the reaction complex.

The xanthophylls can protect against photoinhibition by modifiying the action of the photsynthtic complex as a whole, and reducing the energy reaching the reaction centre.

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What Causes blood oxygen saturation levels to go down?

Blood oxygen saturation levels can decrease due to various reasons such as lung diseases like pneumonia or asthma, high altitude, heart conditions, anemia, or carbon monoxide poisoning. Other factors like smoking, obesity, and certain medications can also affect oxygen saturation levels.


How do you determine the saturation point using the density?

The saturation point can be determined using the density by measuring the density of the sample at different levels of saturation. The point at which the density no longer changes with increasing saturation is the saturation point. This is because at full saturation, the pores of the material are completely filled with the saturating fluid, leading to a maximum density.


How can one determine the saturation level in a given substance?

To determine the saturation level in a substance, you can conduct a saturation test by adding the substance to a solvent until no more can dissolve. The point at which no more can dissolve is the saturation level.


What causes rapidly fluctuating oxygen saturation levels?

Rapidly fluctuating oxygen saturation levels can be caused by conditions such as pulmonary embolism, severe asthma exacerbation, acute respiratory distress syndrome (ARDS), or severe pneumonia. Other factors like panic attacks, anxiety, or anemia can also contribute to sudden changes in oxygen saturation levels. It is important to seek medical attention if experiencing such fluctuations to determine the underlying cause.


What is the term for the purity or strength of a color?

The term for the purity or strength of a color is "saturation." Saturation refers to the intensity of a color, with high saturation indicating pure, vibrant color and low saturation resulting in more muted or pastel tones.

Related Questions

What causes saturation in a welding transformer?

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What is the saturation point of light in a chloroplast?

The saturation point of light in a chloroplast is the point wherein rate of carbon production can no longer rise. It describes the amount of light that is beyond the capability of the chloroplast to absorb.


What value of light intensity produced photosynthetic saturation in tomato leaves?

The light intensity that typically produces photosynthetic saturation in tomato leaves is around 1000 µmol photons m-2 s-1. This means that at this level of light intensity, the rate of photosynthesis reaches a maximum and further increases in light intensity do not result in higher photosynthetic rates.


How is saturation related to dew point?

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What are the main causes for ignition wire failure?

Age Extreme heat Oil saturation from leaking valve cover gasket


Amoeba photosynthetic or not?

not photosynthetic


What is the relationship between an increase in light intensity and photosynthetic rate in tomato leaves?

As light intensity increases then the rate of photosynthesis increases until a point is reached when the rate levels off. Beyond this point is called the light saturation point of photosynthesis.


Are euglenoids photosynthetic?

No, they aren't photosynthetic.


Why the magnitude of the saturation magnetization decreases with increasing temperature for ferromagnetic material?

As temperature increases, thermal energy disrupts the alignment of magnetic moments in ferromagnetic materials. This causes a decrease in the alignment of magnetic domains, leading to a decrease in the overall saturation magnetization.


What Causes blood oxygen saturation levels to go down?

Blood oxygen saturation levels can decrease due to various reasons such as lung diseases like pneumonia or asthma, high altitude, heart conditions, anemia, or carbon monoxide poisoning. Other factors like smoking, obesity, and certain medications can also affect oxygen saturation levels.


What is the cause of high percent iron saturation?

High percent iron saturation can be caused by conditions such as hemochromatosis, a genetic disorder that causes the body to absorb too much iron, or chronic liver disease where the liver is unable to regulate iron levels properly. Other causes can include excessive iron intake from supplements or transfusions, or certain types of anemia.


Are there photosynthetic pigments in radicchio?

No, there are no photosynthetic pigments in Radicchio.