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Photosynthesis
This category is for questions about the chemical process in which autotrophic organisms use sunlight, carbon dioxide and water to make glucose, water and oxygen. This process is vital to life and is of great importance in biology.
6,415 Questions
Animal and fungi are not photosynthetic. So plant is the answer
Why doesn't the photo-system run out of electrons?
Because electrons are obtained from water. Process is called photolysis
What are the final products made by the chloroplast during photosynthesis?
O2 and Glucose are end products.Several other products also formed.
How do UV-B rays affect people?
UV light (particularly UV-B and UV-C, which are regions of the spectrum with shorter wavelengths than the UV-A part) can cause skin cancer. It does this because the DNA molecules in your body absorb UV light, and the light has enough energy to break bonds in the DNA, causing harmful rearrangements in your genetic code. When cells with damaged DNA reproduce, that can result in cancerous cells. See more details here: http://en.wikipedia.org/wiki/Ultraviolet
Is it true that plants use nutrients directly in photosynthesis?
No, not really, nutrients are a source of nourishment (food), energy for life.
Photosynthesis involves Sunlight, Carbon Dioxide (from the air) and Water (from the soil). These substances are basic chemicals not true nutrients. The sugars produced from these chemicals by Photosynthesis are nutrients, they contain energy for life - (the energy from the Sunlight)
What douse photosynthesis mean?
photosynthesis means it is when a plant re produces plants are our primary food source to survive they need corondioxide water and sun ray. They are the only plants that mate their own food that is grailsedse.
What are two things used to make suger during photosynthesis?
CO2 and H2O reacts to form glucose and oxygen gas
Carbon is taken from atmosphere. It is the main source
Why did the leaf turn brittle in testing a leaf for starch?
The leaf turns brittle during the testing the leaf for starch because the ethanol extracts the all water content from the leaf.
PGAL is used to make what main photosynthesis product?
PGAL (phosphoglyceraldehyde) is used to make glucose, the main product of photosynthesis.
What are differences between plants and humans?
Plants are autotroph and humans and animals are heterotroph.
Where within a plant cell is is sunlight captured and converted to chemical energy?
In the chloroplasts and chlorophyll.
The beauty of biology or biochemical systems is that they have regulatory mechanisms in it to avoid excessive synthesis of a product or production when it is not required. Most of the biochemical enzymes are controlled by its "feedback inhibition", when there is surplus amount of product is around (Hexokinase as an example). So for plants or crops, it is not an issue whether the day is 16 or 25 degree sunny day, they carry out the photosynthesis by up taking the required light energy or technically speaks, photons!
What is produced in green plant cells during light independent reactions?
It is the final step. It remakes RUBP and makes glucose.
Are all pigments found in plants involved in photosynthesis?
No. All pigments found in plants are not involved in photosynthesis. In fact, the greatest variety of colored pigments are found in flower pedals and are used to attract pollinators among other things.
What is tha end of photosynthesis.the by -product of photosynthesis?
Why can green plant capable of manufacturing their food
Why plant can perform both photosynthesis and respiration?
Photosynthesis uses, water + carbon Dioxide in the presence of sunlight for energy, to convert the reactants into Oxygen and Glucose. Without sunlight at night time, plants use stored energy from the day, but when incapable of supplying more energy, revert to respiration to breathe.
Photosynthesis is an example of the conversion of light energy to chemical energy.
