Why can photosynthesis only take place in light?

Why can photosynthesis only take place in light?

Plants don’t live directly from light. Photosynthesis ultimately makes glucose, which is then converted into starch and other nutrients. With a reasonably high light intensity, this oxygen consumption is more than offset by the oxygen production of photosynthesis.

Which conditions have to be fulfilled for photosynthesis to take place?

The presence of chlorophyll and the supply of light energy are the conditions for photosynthesis to take place. During photosynthesis, carbon dioxide and water are absorbed into the chloroplasts. These substances are the starting materials for photosynthesis.

Where do plants get the energy they need for their metabolism from when the sun is not shining at night?

You can compare the energy production from food to human digestion. During energy production, carbon dioxide and water are produced, which are not needed by the plant at night. Therefore, it releases these substances back into the air through its stomata.

Which light do plants need to winter?

Your plants need a full and balanced light spectrum for both red and blue light during the winter.

What light do indoor plants need?

Plants mainly need blue light with around 400 to 490 nm and red light with 640 to 700 nm for photosynthesis and to generate energy.

Which light for photosynthesis?

Chlorophylls (there are chlorophylls a and b) mainly collect blue and red light, carotenoids and xanthophylls usually red to yellow light. Light of “green” wavelengths (520 to 565 nanometers (nm) and dark red wavelengths (around 730 nm) is reflected.

Which light for the growth phase?

While red light supports the plant in its flowering phase, blue light especially gives it the energy it needs for its vegetative growth. As a result, the light ensures that the plant grows more compact, but also that it develops stronger and healthier shoots.

Which light is good for aquarium plants?

30-50 lumens per liter of water provide sufficient brightness. the light should be daylight white (light color: 6,500-8,000 K) the ideal lighting duration is between 8-10 hours. UV lamps disinfect the water and can contain the algae infestation.

Which light for aquatic plants?

Different color temperatures for aquariums Classic daylight has a color temperature of 5500 Kelvin, whereas the bright sun is closer to 7000. Values ​​between 50 Kelvin are ideal for aquatic plants, although other values ​​also work.

Which light helps against algae?

Does UV light help against algae? The radiation from a UV clarifier also kills algae spores. Since algae deposit a large number of spores, a UV lamp can only ever reach and kill some of these spores. A UV clarifier is particularly effective against floating algae.

Which light for salt water aquarium?

There are 2 light sources that are mainly used in saltwater aquariums: fluorescent tubes and LED lights. Fluorescent tubes can be used for saltwater aquariums that mainly use fish. LED lights.

What does blue light do in the aquarium?

The optimal light color for healthy plant growth 1. Red light is swallowed by water, while blue light penetrates the water over long distances. 2. In underwater worlds one can even see the rays of blue light penetrating through the water.

What promotes algae growth in the aquarium?

Cause algae in the aquarium Nutrients and light are the basis of algae growth. So algae can grow if there is an excess of both. If the phosphate level increases, the algae can multiply quickly. The reason for this is that phosphate and nitrite are used as nutrients by algae.

Why light in the aquarium?

For the plants in an aquarium, the light represents a source of food. Only the aquarium lighting can initiate the photosynthesis process, with which the plants filter the carbon dioxide out of the water. For the animals, however, aquarium lighting is more than just a source of food.

What does moonlight bring to the aquarium?

In addition to the decorative idea, the moonlight can also be a help for jumping or frightened fish to orientate themselves. This enables them to see better in the aquarium where there are obstacles and thus not injure themselves.

Can fish see blue light?

However, I would not go so far that the bluish light is only something for the human eye. The fish can already see the light, they just feel less disturbed by it. However, I think it is problematic to leave the light on all night, because the fish do not go to sleep.

When should the light in the aquarium be on?

A lighting duration of around 12 hours is often recommended in weaker light. With medium light intensities, the recommended lighting duration is around 10 hours, with high light intensities just 8 hours can be enough to supply the plants with sufficient energy for photosynthesis.

How long should the light in the aquarium be on?

Both are 12 hours. Therefore, one could in principle assume a lighting duration of around 12 hours. This has also proven itself, although you can certainly go a little shorter. 10 hours will be sufficient for many aquariums.

How long does the light in the saltwater aquarium have to be on?

The total lighting time should not be more than 14 hours a day, in practice even twelve hours of light have proven to be effective. If you use a combination of HQI lamps and fluorescent tubes, you can switch the tubes on and off 2 hours before and after the HQI lamps.

How long light in the run-in phase?

Lighting time in the running-in phase of an aquarium This process also affects your metabolism. In this respect, it is advisable to limit the lighting duration of a plant aquarium with moderate or high light intensity to only 6 hours in the beginning.