¿Por qué las hojas son verdes? Parte 2

The video explores the role of chlorophyll in photosynthesis, highlighting its ability to capture and transfer solar energy to produce sugar. Despite its inefficiency in absorbing green light, chlorophyll's widespread presence in plants suggests its evolutionary advantage. The video compares green photosynthesis with that of purple bacteria, noting the superior efficiency and productivity of the former. It concludes with a reflection on chlorophyll's dominance on Earth and speculates about the possibility of other planets with different photosynthetic systems.

What is the primary function of chlorophyll in plants?

• To repel insects

• To provide structural support

• To capture and transfer solar energy

• To absorb water

Why is chlorophyll not efficient at absorbing green light?

• It is only present on the surface of the leaf

• It is spread throughout the leaf, allowing for absorption of other wavelengths

• It absorbs only ultraviolet light

• It reflects all light

What could happen if a leaf absorbed all green light at the surface?

• The leaf would become transparent

• The leaf could receive too much energy and get damaged

• The leaf would stop photosynthesis

• The leaf would dry out

How does green photosynthesis compare to other systems like those of purple bacteria?

• It is only used by aquatic plants

• It is more efficient and dominates Earth's productivity

• It requires more energy

• It is less efficient

What is speculated about photosynthetic systems on other planets?

• They are identical to Earth's systems

• They might be dominated by purple plants

• They are all green like on Earth

• They do not exist