Skip to main content
Glite Dictionary
🔬 A small grain 🌱 Plant cell stack
granum

granum

9.9
A stack of thin green layers inside plant cells that capture light to make food
  • noun
  • /ˈɡrænəm/
  • Specialized
translation icon : grana
  • A granum is essential for capturing light energy during photosynthesis in plant cells.

Examples

  • Damage to a granum can reduce the efficiency of photosynthesis in leaves.

  • A granum consists of several thylakoids stacked together.

  • Scientists observed that each granum consists of several stacked thylakoids.

  • Each granum plays a crucial role in energy conversion.

  • In plant cells, the granum is essential for facilitating photosynthesis.

  • Each granum contains multiple thylakoids for capturing light energy.

  • The granum plays a crucial role in the process of converting sunlight into chemical energy.

Surface Forms

granum singular
grana plural

Etymology

Granum for the chloroplast part also comes from Latin granum, meaning 'grain', because the stacks of thin discs inside the cell look like little piles or grains. So a granum is named for its grain-like stacked shape that helps the plant capture light for photosynthesis.