Oxygen in human blood is vital for cellular respiration, generating energy for body functions. It sustains life, supporting metabolic processes and ensuring organs and tissues receive the necessary oxygen for optimal functioning.
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Liver disease encompasses various conditions affecting the liver’s structure or function, often caused by infections, alcohol misuse, fatty liver, or autoimmune disorders. Symptoms may include jaundice, fatigue, and abdominal pain.
Control and coordination are essential physiological processes in living organisms. They ensure harmonized functioning of body systems through nervous and endocrine systems, maintaining homeostasis and enabling responses to stimuli.
Resistivity is a material property measuring its inherent opposition to electric current flow. It is quantified in ohm-meters (Ω·m) and depends on a substance’s composition and temperature.
A rainbow is a meteorological phenomenon characterized by a spectrum of colors appearing in the sky due to sunlight refracting, reflecting, and dispersing in water droplets, creating a beautiful, multicolored arc.
Normal human vision involves light entering the eye, refracting through the cornea and lens, forming a focused image on the retina. Signals are sent to the brain via the optic nerve, enabling clear sight.
Vision defects include myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and presbyopia. These conditions result from abnormalities in the eye’s shape or lens flexibility, affecting the ability to focus clearly.
Hormones are chemical messengers secreted by glands, regulating various physiological processes. Examples include insulin, estrogen, and adrenaline. They travel through the bloodstream, influencing growth, metabolism, and other bodily functions.
Blood sugar level, or blood glucose, measures the amount of glucose in the bloodstream. It is regulated by insulin and glucagon. Maintaining a stable level is crucial for overall health.
Mendel’s pea plant experiments involved controlled crosses. Traits like flower color were studied. Cross-pollination of parental plants with specific traits led to predictable ratios in the offspring, revealing principles of inheritance.