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Organisms Depend Upon Photosynthesis 1.

And, once you master your knowledge of photosynthesis, you can relax in the sun with a greater appreciation for the O2 you breathe, knowing that it is produced from the photosynthetic process. Don’t forget the sunscreen—at least SPF 30—you aren’t a plant, after all. Finally, you will realize that the beachside smoothie you are sipping, along with everything else that you have ever eaten, or will ever eat, relies on photosynthesis either directly or indirectly as its source of energy. Unless, of course, you have gotten into the habit of snacking on chemoautotrophs that live in rocks or deep-sea hydrothermal vents. They don't use photosynthesis.

In all photosynthetic organisms, organic pigments exist to harvest the light energy.

Introduction: "Photosynthesis is the conversion of light energy to chemical energy that is stored in glucose or other organic compounds; it occurs in plants, algae, and certain prokaryotes" (Campbell, G-16).

The organelle that carries out photosynthesis is the chloroplast

In most plants, which organs are adapted to capture sunlight for photosynthesis

Plants are able to make their own food using only carbon dioxide, water, and the energy from sunlight.This chemical reaction is called photosynthesis and it supports all other complex life on Earth.PhotosynthesisEvery leaf is a solar-powered food factory, producing the food a plant requires from simple ingredients: water and carbon dioxide.Water enters the plant via root hair cells and travels up to the leaves in tubes called xylem.Water - transported to leaves in xylems Carbon dioxide from the atmosphere enters the leaf through tiny holes called stomata.Carbon dioxide - enters leaves through stomataIt is here in the chloroplasts, tiny cellular bags filled with chlorophyll, that photosynthesis occurs.ChloroplastsChlorophyll is key: it traps energy from the Sun and uses it to bond carbon dioxide from the air to hydrogen from the water.Chlorophyll bonds:
Carbon dioxide from air
Hydrogen from water
This process produces glucose, which is used for the plant's growth and stored as starch.A waste gas - oxygen - is produced. Photosynthesis produces:
Glucose
Oxygen
Like carbon dioxide, oxygen is exchanged through the stomata.Photosynthesis is a simple equation.Photosynthesis:
Carbon dioxide + water + light→ glucose + oxygen
Without this essential process, plants couldn't grow. And if plants couldn't grow and reproduce, other organisms would have nothing to eat. Plants are the basis of the global food chain.Plants' consumption of carbon dioxide, and production of oxygen by photosynthesis, is what creates our life-sustaining atmosphere.Which is why photosynthesis is perhaps the most important chemical reaction of all.

Hypothesis:Photosynthesis is a process by which green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose....

Photosynthesis - perfect chemistry in Nature

Algae: Algae, a diverse group of eukaryotic photosynthetic organisms that range from single cells to massive kelp.

Algae are a very diverse group of predominantly aquatic photosynthetic organisms that account for almost 50% of the photosynthesis that takes place on Earth. Algae have a wide range of antenna pigments to harvest light energy for photosynthesis giving different types of algae their characteristic colour. Early work done with algae contributed much to what is presently known about the carbon dioxide fixation pathway and the light harvesting reactions. The processes of photosynthesis in algae and higher plants are very similar. From among the three types of carbon dioxide‐concentrating mechanisms known in photosynthetic organisms, two types are found in different types of algae. Algae are proposed to play a role in the global carbon cycle by helping remove excess carbon dioxide from the environment. Recently, algae are recognized as a promising biodiesel source due to its efficient absorption and conversion of solar energy into chemical energy.

To a plant, sunbathing is life. Literally. In fact, plants have evolved all sorts of ways to maximize their exposure to the sun while at the same time preventing loss of critically needed water. Plants, as well as some algae and bacteria, perform photosynthesis, a process that involves the capture and use of the Sun’s energy to create biological compounds. Photosynthetic organisms generate these compounds using carbon dioxide (CO2) and water (H2O), and the products they release are oxygen (O2) and carbohydrates as byproducts.

Leaves are the primary photosynthetic organs of plants, serving as key sites where energy from light is converted into chemical energy.
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