Examines foundational experiments that uncovered how photosynthesis works and the function of key pigments such as chlorophyll in capturing light energy.
G3P (Glyceraldehyde-3-phosphate) is the direct product of the Calvin cycle, which can be used to form glucose and other carbohydrates.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
Accessory pigments like chlorophyll b, xanthophylls, and carotenoids absorb light energy and transfer it to chlorophyll a for photosynthesis.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
The C₄ pathway is more efficient than the C₃ pathway in hot, dry environments because it prevents photorespiration and enhances CO₂ fixation.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
Engelmann’s experiment demonstrated that photosynthesis occurs most efficiently in red and blue light by observing the movement of aerobic bacteria toward oxygen-rich regions.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
NADPH provides the reducing power required to convert carbon dioxide into glucose in the Calvin cycle.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
CO₂ concentration is the most common limiting factor for photosynthesis under natural conditions.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
Chlorophyll a is the primary pigment that absorbs light energy for photosynthesis.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
CAM plants store CO2 as organic acids at night to minimize water loss during the day.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
Water availability affects stomatal opening, which in turn regulates gas exchange for photosynthesis.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
The fixation of one CO₂ molecule in the Calvin cycle requires 3 ATP molecules.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
Carbon dioxide concentration is the most limiting factor for photosynthesis in natural conditions.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
Chlorophyll b is an accessory pigment that absorbs light and transfers energy to chlorophyll a.
Ref: NCERT Class 11 Biology Chapter 11: Photosynthesis in Higher Plants Photosynthesis - Early Experiments and Pigments
