Answer::
Q1: During photosynthesis, the radiant energy of the sun is used to convert carbon dioxide and water into glucose and oxygen. This process is powered by the energy from the sun, which is absorbed by pigments in the chloroplasts of plant cells and used to drive the chemical reactions that produce glucose and oxygen.
Q2: In photosynthesis, the energy from sunlight is converted into chemical energy, which is stored in glucose and oxygen molecules. This process occurs in the chloroplasts of plant cells, where pigments absorb the energy from sunlight and use it to drive the chemical reactions that produce glucose and oxygen.
Q3: Cellular respiration results in a net output of energy. This process occurs in the mitochondria of cells, where glucose and other organic molecules are broken down to release the energy stored in their chemical bonds. The energy released during respiration is used to produce ATP, a molecule that stores chemical energy.
Q4: The energy produced by respiration is stored in the chemical bonds of ATP molecules. These molecules can be used to power various cellular processes, such as muscle contraction, synthesis of biomolecules, and transport of ions and molecules across cell membranes. When ATP is used to power these processes, the chemical energy stored in its bonds is released and converted into other forms of energy, such as mechanical energy or thermal energy.