A photosystem is a protein-pigment complex found in the thylakoid membranes of plants, algae, and cyanobacteria, essential for photosynthesis. It captures light energy and converts it into chemical energy. Each photosystem consists of two main parts: the antenna complex, which gathers light energy, and the reaction center, where photochemistry occurs. […]
The Calvin Cycle, also known as the Calvin-Benson cycle, is a series of biochemical reactions that occur in the stroma of chloroplasts during photosynthesis. It uses carbon dioxide, ATP, and NADPH to produce glucose and other carbohydrates. The cycle begins with the enzyme RuBisCO fixing carbon dioxide to ribulose bisphosphate […]
Brassinosteroids are a class of plant hormones essential for growth and development. They regulate processes like cell elongation, division, and differentiation, and help plants respond to environmental stresses. These hormones are crucial for plant height, leaf development, and overall vitality. This is an MCQ on Brassinosteroids – Structure and Physiological […]
Gibberellins are plant hormones that act like growth spurts. They promote stem elongation, seed germination by breaking dormancy, and flowering in some plants. Imagine them as tiny giants stretching plants upwards and coaxing them to bloom. This is an MCQ on Gibberellins Structure and Physiological Effects. You may also like: […]
Ethylene, the “ripening hormone,” is a gas plants use to accelerate fruit ripening, leaf senescence, and flower petal abscission. It acts as a signal, triggering programmed cell death and promoting processes that prepare fruit for dispersal. This is an MCQ on Ethylene Plant Hormone. You may also like: $. Plant Hormones […]