Speeli
  • Facts
  • Geography
  • Health
  • History
  • Nature
  • Psychology
  • Science
  • Wiki
Speeli
  • Facts
  • Geography
  • Health
  • History
  • Nature
  • Psychology
  • Science
  • Wiki
  • Science
  • Nature
  • Plants
  • Wiki

What are the End Products of Photosynthesis?

  • Alex Williams
  • July 8, 2022
  • 3 minute read
Knowledge

Definitely, you have learned about photosynthesis in your school. It is the process by which green plants produce oxygen and glucose using sunlight and water. Plants have been performing photosynthesis for millions of years, making life possible on Earth. Had photosynthesis not been there, the diverse flora and fauna could not have existed. All living organisms except certain micro bacteria require oxygen to survive. Oxygen is one of the three end products of photosynthesis. Continue reading to know more about it.

1. What is Photosynthesis? Explain the Definition, Process & Diagram in Brief

Photo by Philipp Deus

This is the process by which living plant cells produce oxygen and food substances through chlorophyll. These food substances are glucose and starch, made from water and carbon dioxide using light energy. The end products of photosynthesis occur in two stages:

A. Light Reaction

It happens in the thylakoids in the presence of sunlight. This reaction is called a photochemical reaction, as it occurs in the presence of photons. The chlorophyll that’s present in the thylakoids absorbs photons. The energy derived from photons raises the energy level of electrons. This energy causes the photolysis of water. The H2O electrons get divided into H+ and OH− ions.

  • 4H₂O → 4H⁺ + 4(OH)⁻
  • 4(OH)⁻ → 2H₂O + O₂ + 4e⁻
  • On adding the above formulae, you get: 2H₂O → 4H⁺ + O₂ + 4e⁻

Nicotinamide adenine dinucleotide phosphate (NADP) gets reduced in the next part of the reaction, forming NADP hydrogen due to excess free electrons.

  • 2NADP + 4e⁻ + 4H⁺ → NADPH

Next, photophosphorylation takes place. In the presence of sunlight, free electrons convert adenosine diphosphate into energy-rich adenosine triphosphate by adding inorganic phosphate. (See What Would Happen if There was No Sunlight?)

B. Dark Reaction

This reaction occurs in the stroma and is called dark because it does not need photons. The dark reaction occurs simultaneously with the light reaction; the gap between these reactions is less than a thousandth second. In this reaction, ATP and NADPH reduce or assimilate carbon dioxide into glucose (C6H12O6).

Ribulose bisphosphate changes inorganic carbon, i.e., one 5-carbon molecule (5C) into three-carbon molecules (3C) and 3 phosphoglycerates. Carbon gets synthesized into a glucose molecule using the energy stored in NADPH and ATP. This glucose is either stored in the form of starch or used up. The overall chemical reaction can be expressed as:

  • 6CO2 + 6H2O → C6H12O6 + 6O2

2. What is the Importance of Photosynthesis?

The primary importance of photosynthesis is listed below:

  • It produces oxygen required for all living organisms to survive. (See What are Examples of Living Things?)
  • It maintains a balanced level of O2 and CO2 in the environment.

3. What are the End Products of Photosynthesis? What are Three End Products of Photosynthesis?

Photo by Marina Yalanska on Unsplash

Sugar, water, and oxygen are the three end products of photosynthesis. These three products have important usage:

  • Glucose is either consumed by the plant or stored in the form of starch. A part of it may be converted into sucrose which is used to synthesize proteins, fats, etc.
  • Water is re-utilized in photosynthesis.
  • The plant uses oxygen in its respiration, and a large part of it is released into the atmosphere. This oxygen is the most integral part of the sustenance of life on Earth because most creatures depend on oxygen for survival. (See How many valence electrons does oxygen have?)

4. The End Product of Photosynthesis is Sucrose. True or False?

True, in the end, sucrose is one of the end products of photosynthesis. It is also sourced from storage.

5. What are the End Products of Cellular Respiration?

Cellular respiration is the process of breaking down carbohydrates into adenosine triphosphate (ATP) to release energy. This energy in the form of ATP is essential for all cells to carry on with life activities. At each stage of this reaction, in eukaryotic cells, mitochondria work as a catalyst to speed up the reactions. Glucose is then converted into carbon dioxide, adenosine triphosphate, and water. These are the end products of cellular respiration. (See What are Few Examples of Producers Consumers and Decomposers?)

6. What is the End Product of Glycolysis?

Photo by Luca Bravo on Unsplash

Glycolysis occurs in the cytoplasm. In animal cells, glycolysis is a process in which 10 chemical reactions break down glucose into pyruvic acid, the end product. The energy released during the conversion of glucose from fats, proteins, or carbohydrates is stored in the form of adenosine triphosphate (ATP).

The pyruvate molecules thus produced enter the mitochondria, where they are further converted into acetyl coenzyme A. The acetyl coenzyme A later enters the tricarboxylic acid cycle or TCA Cycle. This conversion is called transition reaction or pyruvate oxidation in the process of cellular respiration. (Also read  25 Best Thornless Roses)

Total
0
Shares
Share 0
Tweet 0
Pin it 0
alex1
Alex Williams

Alex Williams is a PhD student in urban studies and planning. He is broadly interested in the historical geographies of capital, the geopolitical economy of urbanization, environmental and imperial history, critical urban theory, and spatial dialectics.

You May Also Like
JAN23 What is Extrusive Volcanism 1
View Post

What is Extrusive Volcanism?

  • Jack Williams
  • May 20, 2023
JAN23 What is Difference Between Fission and Budding 2
View Post

What is the Difference Between Fission and Budding?

  • Jack Williams
  • May 19, 2023
JAN23 How to Preserve a Live Starfish
View Post

How to Preserve a Live Starfish?

  • Jack Williams
  • May 16, 2023

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Trending Posts
  • JAN23 How to Preserve a Live Starfish 1
    How to Preserve a Live Starfish?
    • May 16, 2023
  • JAN23 Which is Not a Characteristic of Enzymes 1 2
    Which is Not a Characteristic of Enzymes?
    • May 8, 2023
  • JAN23 What are the Things You Need to Survive 1 3
    What are the Things You Need to Survive?
    • May 6, 2023
  • JAN23 How are Lake Superior Agates Formed 4
    How are Lake Superior Agates Formed?
    • April 25, 2023
  • JAN23 Why do People Wear Little Spoon Necklace 1 5
    Why do People Wear Little Spoon Necklace?
    • April 1, 2023
  • JAN23 What are Generalist Species Examples 4 6
    What are Generalist Species Examples?
    • April 1, 2023
About

Speeli’s mission is to summarize the internet’s knowledge into Speeli summaries. By doing so we will make the process of finding information extremely fast.

Top Stories
  • JAN23 What is Extrusive Volcanism 1
    What is Extrusive Volcanism?
    • May 20, 2023
  • JAN23 What is Difference Between Fission and Budding 2
    What is the Difference Between Fission and Budding?
    • May 19, 2023
  • JAN23 What are Drawbacks Of Urbanization
    What are Drawbacks of Urbanization?
    • May 9, 2023
  • JAN23 What Simple Machine is a Broom
    What Simple Machine is a Broom?
    • April 29, 2023
  • JAN23 How Long is an Eon
    How Long is an Eon
    • April 26, 2023
  • JAN23 Why Do Bees Eat Honey 1
    Why Do Bees Eat Honey?
    • April 26, 2023
Speeli
  • DMCA
  • Privacy Policy
  • Terms of Service
  • What is Speeli?
Simplifying the Internet, One Summary at a Time!

Input your search keywords and press Enter.