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Chloroplast Facts for Kids

Chloroplast Facts for Kids

  • Common Name: Chloroplast
  • Biological Name: Plastid (Membrane-Bound Organelle)
  • Biological Purpose: Energy Production (Photosynthesis)
  • Average Size: Between 5 to 50 micrometers
  • Found In: Plant Cells and Algae Cells
  • Discovery by: German Botanist Hugo von Mohl (1837)
  • First Appeared: ~2.1 Billion Years Ago

28 Chloroplast Facts For Kids

  1. Chloroplasts are organelles found in plant cells that are responsible for photosynthesis.
  2. They are oval-shaped structures that are typically 5-10 micrometers in length.
  3. Chloroplasts contain chlorophyll, a green pigment that absorbs light energy.
  4. The light energy is then converted into chemical energy, which is used to make glucose during photosynthesis.
  5. Chloroplasts have a double membrane system that surrounds them, with the outer membrane being smooth and the inner membrane being highly folded.
  6. The inner membrane of the chloroplast is called the thylakoid membrane, and it contains many flattened sacs called thylakoids.
  7. The thylakoid membranes are stacked on top of each other in structures called grana.
  8. The space inside the thylakoid membranes is called the thylakoid lumen.
  9. The thylakoid membranes contain pigments, enzymes, and electron transport chains that are involved in photosynthesis.
  10. Chloroplasts also have a fluid-filled space called the stroma, which contains enzymes that are involved in the synthesis of glucose.
  11. Chloroplasts are able to replicate themselves, and new chloroplasts can be formed within a single cell.
  12. Chloroplasts contain their own DNA, which is separate from the DNA in the cell nucleus.
  13. Chloroplast DNA is circular, like bacterial DNA, and is thought to have originated from an ancient endosymbiotic event.
  14. The number of chloroplasts in a cell can vary depending on the type of plant and the environmental conditions.
  15. Chloroplasts are not present in all plant cells - they are only found in photosynthetic tissues such as leaves and stems.
  16. Chloroplasts are also found in some algae and bacteria that are capable of photosynthesis.
  17. Chloroplasts are able to move within plant cells, and can position themselves to optimize light absorption.
  18. Chloroplasts can also change their shape depending on the light conditions, becoming longer and thinner in low light conditions to increase their surface area.
  19. The efficiency of photosynthesis in chloroplasts can be affected by environmental factors such as temperature, light intensity, and carbon dioxide levels.
  20. Chloroplasts can also be damaged by environmental stressors such as high light intensity, herbicides, and insect attacks.
  21. Chloroplasts play an important role in the global carbon cycle, as they are responsible for fixing carbon dioxide into organic molecules.
  22. Chloroplasts can also produce oxygen as a byproduct of photosynthesis.
  23. Chloroplasts are believed to have evolved from free-living photosynthetic bacteria that were engulfed by ancestral eukaryotic cells.
  24. The process of endosymbiosis that led to the formation of chloroplasts is thought to have occurred around 1.5 billion years ago.
  25. The first chloroplasts were likely similar in structure to modern-day cyanobacteria.
  26. Chloroplasts are essential for the survival of most plant species, as they are the primary producers of organic molecules in the ecosystem.
  27. Chloroplasts can also play a role in plant defense against herbivores and pathogens by producing secondary metabolites.
  28. The study of chloroplasts and photosynthesis has led to many important discoveries in biology and has practical applications in fields such as agriculture and renewable energy.

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Chloroplast Pictures

Pictures can be far better than words when it comes to understanding something. That's why we've provided you with the below images to help you with your research on chloroplast. Below you will find three pictures related to chloroplasts. These pictures should give you a bettering understanding of chloroplast and what it looks like.

Diagram of Photosynthesis in Chloroplast

A diagram of photo synthesis in chloroplast.

A 3D Diagram of Chloroplast

A 3D diagram of a chloroplast organelle.

Chloroplast and Plant Cells Under a Microscope

A microscope picture of chloroplast inside plant cells.

Chloroplast Resources

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