Enzymes are biological catalysts that speed up biochemical reactions by lowering activation energy. They bind to substrates, facilitate the conversion into products, and are then released to catalyze additional reactions.
Category: Class 6 Science
NCERT Solutions and Important Questions for class 6 Science for CBSE exams 2020-2021.
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Photosynthesis allows plants and some microorganisms to convert sunlight, carbon dioxide, and water into glucose and oxygen. This process provides the primary energy source for these organisms and produces oxygen essential for aerobic life.
Factors influencing photosynthesis include light intensity, carbon dioxide concentration, water availability, and temperature. Optimal levels of these factors increase the rate of photosynthesis, while deviations can limit or inhibit the process.
Cellular respiration converts glucose and oxygen into energy, carbon dioxide, and water. This process provides the energy required for various cellular activities, including growth, repair, and maintenance, crucial for sustaining life.
Adaptations enhance survival by allowing organisms to better fit their environment. They improve an organism’s ability to obtain resources, avoid predators, and cope with environmental stresses, increasing their chances of survival and reproduction.