Detection implies consciousness, which photosynthetic organisms don't have. Everything that they do is an automatic process, built in to their biochemistry, rather than being a decision based upon something that they have observed. In the case of plants that grow toward the light, that has to do with growth hormone in strategic locations, which alters the way the plant grows. The plant does not actually know where to secrete the growth hormone, that is just an automatic response to certain envrionmental conditions. In the case of growing in an upward direction, that is easy, the growth hormone just sinks downward under the influence of gravity. The lowest part of the plant then grows the fastest, causing the plant to turn upward. And for plants whose leaves angle toward the sunlight, you just need a hormone secretion where the rate of photosynthesis is lower.
by chemical photoreceptors
Plants detect light by chemical photoreceptors.
They are called phototrophs. They are photosynthetic organisms
All photosynthetic organisms create energy from sunlight.
the rise of photosynthetic
No, there are some photosynthetic protists and some photosynthetic bacteria.
The rise of photosynthetic organisms will not ever lead to a decrease in oxygen. The use of these organisms will always lead to an increase.
No, paramecia are not photosynthetic. Photosynthetic organisms react when exposed to light. Paramecia cannot detect light.
Yes
Photosynthetic organisms need light in order to survive. In very deep water there is no light.
They are called phototrophs. They are photosynthetic organisms
o test for O2 production in the light.
In order to live, photosynthetic organisms cannot survive without sunlight and water. Therefore a photosynthetic organism cannot survive in any place without water, such as a desert, or without light and air, such as the moon.
By using photosynthetic pigments. Primary pigments are the chlorophylls
All photosynthetic organisms create energy from sunlight.
the rise of photosynthetic
All photosynthetic organisms create energy from sunlight.
Unicellular,filamentous and photosynthetic organisms are ALGAE
Green plants (and some photosynthetic bacteria)