explain the process of photosynthesis
Answers
Answer:
Just like you, plants need to take in gases in order to live. Animals take in gases through a process called respiration. During the respiration process, animals inhale all of the gases in the atmosphere, but the only gas that is retained and not immediately exhaled is oxygen. Plants, however, take in and use carbon dioxide gas for photosynthesis. Carbon dioxide enters through tiny holes in a plant’s leaves, flowers, branches, stems, and roots. Plants also require water to make their food. Depending on the environment, a plant’s access to water will vary. For example, desert plants, like a cactus, have less available water than a lilypad in a pond, but every photosynthetic organism has some sort of adaptation, or special structure, designed to collect water. For most plants, roots are responsible for absorbing water.
The last requirement for photosynthesis is an important one because it provides the energy to make sugar. How does a plant take carbon dioxide and water molecules and make a food molecule? The Sun! The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas. After the sugar is produced, it is then broken down by the mitochondria into energy that can be used for growth and repair. The oxygen that is produced is released from the same tiny holes through which the carbon dioxide entered. Even the oxygen that is released serves another purpose. Other organisms, such as animals, use oxygen to aid in their survival.
If we were to write a formula for photosynthesis, it would look like this:
6CO2 + 6H2O + Light energy → C6H12O6 (sugar) + 6O2
Explanation:
ANSWER :
\huge{\boxed{\mathcal{PHOTOSYNTHESIS}}}
PHOTOSYNTHESIS
" Photosynthesis " is a process in which green plants use sunlight , chlorophyll, carbon dioxide and water to synthesise organic food in the form of carbohydrates.
EQUATION : 6CO₂ + 6H₂O + light energy = C₆H₁₂O₆ + 6O₂.
→ It occurs in two stages :
LIGHT REACTION : During this reaction, Adenosine triphosphate and Nicotinamide adenine dinucleotide phosphate are generated. This step is light dependent.
DARK REACTION : It is not dependent on light. During this reaction, CO₂ is reduced to carbohydrate. Source of energy is ATP and NADPH.
⇒ THE THREE EVENTS THAT OCCURS DURING THE
PROCESS OF PHOTOSYNTHESIS ARE :
1. Absorption of light energy by the green pigment
chlorophyll.
2. Conversion of light energy into chemical energy and the
splitting of water molecule into hydrogen and oxygen.
3. Reduction of carbon dioxide into carbohydrate.