Question

phase one: light reactions (pg 223 - 224)

1. the chemical pigment responsible for capturing the suns energy and giving the plants their green color is
2. chloroplasts contain saclike photosynthetic membranes called
3. what is a granum?

Explanation:

• For question 3: Chlorophyll is the pigment that absorbs light energy (especially in the red and blue regions of the spectrum) and reflects green light, giving plants their green color. It is crucial for the light - dependent reactions of photosynthesis.
• For question 4: Thylakoids are the sac - like membranes within chloroplasts. They contain the chlorophyll and other components necessary for the light reactions of photosynthesis.
• For question 5: A granum is a stack of thylakoids. This stacking increases the surface area available for the light - harvesting complexes and electron transport chains involved in the light reactions.

Answer:

1. Chlorophyll
2. Thylakoids
3. A stack of thylakoids.