Category: Biology
Factors Affecting the Rate of Transpiration Environmental factors such as intensity of light, temperature, atmospheric humidity, wind velocity, availability of soil water, etc., affect the rate of transpiration. External …
Translocation of Solutes in Plants The process through which synthesized food and other solutes are translocated to different parts of the plant is called translocation of solutes. Direction of …
Role of Mineral Elements in Plant Nutrition The major roles and deficiency symptoms of mineral elements in the plants are as follows: Nitrogen Nitrogen is absorbed mainly in the …
Mineral Salt Absorption Most of the mineral elements required by the plants are absorbed from the soil by the roots and are then translocated to various parts. The minerals …
What is Active Mineral Salt Absorption Direct analysis of vacuolar sap of plant shows that both cations and anions accumulate in plant cell in a large quantity against the …
The pyruvic acid formed during glycolysis enters mitochondria where it is further oxidised. Following two steps of aerobic oxidation occur within mitochondria. Formation of Acetyl coenzyme A. Krebs cycle …
OXIDATIVE PHOSPHORYLATION Oxidative phosphorylation is the synthesis of energy-rich ATP molecules with the help of energy liberated during oxidation of reduced coenzymes (NADH2 and FADH2), produced in respiration. The …
CHEMOSYNTHESIS There are some organisms that are able to manufacture their food in the absence of light. They get chemical energy for this purpose by oxidizing different types of …
CHEMIOSMOTIC MECHANISM Chemiosmosis is the movement of ions across a semipermeable membrane down their electrochemical gradient. It is a type of diffusion, where ions move across a membrane from …
DIFFUSION Diffusion is the movement of molecules or ions of a solute or solvent from the region of higher concentration to that of its lower concentration. The exchange of …