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.
Tiwari Academy Discussion Latest Questions
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.
Key characteristics of living organisms include cellular organization, metabolism, growth, reproduction, response to stimuli, and homeostasis. Non-living things lack these processes and functions that are essential for life.
The environment influences the survival of living creatures by providing essential resources like food, water, and shelter, and by presenting challenges such as predators and climate. Adaptations to these factors are crucial for survival.
Genetic material is crucial in inheritance because it carries the instructions for an organism’s traits and characteristics. It ensures that these traits are passed from parents to offspring, maintaining continuity of species.
Living organisms use energy, primarily from food or sunlight, to fuel metabolic processes, maintain homeostasis, and support growth and reproduction. Energy is essential for performing various physiological functions and sustaining life.
Sexual reproduction involves two parents and the combination of genetic material, resulting in genetic diversity. Asexual reproduction involves one parent and produces genetically identical offspring, typically through methods like fission, budding, or vegetative propagation.