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Context
Oxygenic Photosynthesis: An Overview
Key Features:
Photosynthetic Organisms:
Cellular Organelles:
Photosynthetic Pigments:
Light-Dependent Reactions:
Photosystems:
Calvin Cycle (Light-Independent Reactions):
Carbon Fixation:
Oxygen Evolution:
Role in the Atmosphere:
Global Carbon Cycle:
Oxygenic photosynthesis is a complex and highly regulated biological process that plays a central role in energy capture and conversion within ecosystems, influencing the composition of the atmosphere and supporting diverse forms of life on Earth.
Photosynthetic Structures
Chloroplasts:
Thylakoid Membranes:
Stroma:
Grana:
Chlorophyll:
Carotenoids:
Photosystem I and II:
Ribulose-1,5-bisphosphate Carboxylase/Oxygenase (Rubisco):
Mesophyll Cells:
Guard Cells:
Stomata:
These structures collectively contribute to the intricate process of photosynthesis, enabling organisms to convert light energy into chemical energy and sustain life on Earth.
PRACTICE QUESTION Q. In the context of photosynthesis, consider the following statements regarding photosynthetic structures: Statement 1: Thylakoid membranes are primarily involved in the light-independent reactions of photosynthesis. Statement 2: Chlorophyll-a and chlorophyll-b are the main pigments responsible for capturing light energy during photosynthesis. Which of the statements above is/are correct? A. 1 only B. 2 only C. Both 1 and 2 D. Neither 1 nor 2 Choose the correct answer using the codes below: A. A only B. B only C. C only D. D only The correct answer is: B. 2 only Explanation:
Therefore, the correct answer is B. 2 only. Thylakoid membranes are primarily associated with the light-dependent reactions, and chlorophyll-a and chlorophyll-b are the main pigments responsible for capturing light energy. |
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