Fundamental unit of life-Cell

  Objects having characteristics of cellular organization, Growth, Reproduction, ability to sense Environment and give response are living organisms. There are some important features of living organisms: It should grow, which means its structure changes as time goes by in an advantageous manner. It should show adaptation to the environment. It should maintain some balanced … Read more

Respiratory quotient: Carbohydrates, fats and protein

Respiratory Quotient: Carbohydrates, fats and protein The respiratory quotient (or RQ or respiratory coefficient), is a dimensionless number used in calculations of basal metabolic rate (BMR) when estimated from carbon dioxide production. It is calculated from the ratio of carbon dioxide produced by the body to Oxygen consumed by the body. Such measurements, like measurements … Read more

Digestive System

 Digestive System Introduction The respiratory and circulatory systems work together to provide cells with the Oxygen they need for cellular Respiration. Cells also need glucose for cellular respiration. Glucose is a simple sugar that comes from the food we eat. To get glucose from food, digestion must occur. This process is carried out … Read more

Respiratory Quotient

–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> Fermentation Which of the following is the most efficient type of respiration? (A) Aerobic respiration (B) Anaerobic respiration (C) Photosynthesis (D) Fermentation Which of the following is the equation for aerobic respiration? (A) C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP (B) C6H12O6 + 2ADP … Read more

Excretory System

–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> Introduction If you exercise on a hot day, you are likely to lose a lot of water in sweat. Then, for the next several hours, you may notice that you do not pass urine as often as normal and that your urine is darker than usual. … Read more

Respiration

–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> is defined as the movement of Oxygen from the outside Environment to the cells within Tissues, and the transport of carbon dioxide in the opposite direction. The physiological definition of respiration is differs from the biochemical definition, which refers to cellular respiration, a metabolic process by … Read more

Nutrition in organisms

Nutrition in organisms Food is the basic necessity of man. It is a mixture of different nutrients such as carbohydrate, protein, fat, VITAMINS and Minerals. These nutrients are essential for Growth, development and maintenance of good Health throughout life. They also play a vital role in meeting the special needs of pregnant and lactating Women … Read more