Diet And Nutrition Advanced - Qp2

IgG stands for Immunoglobulin (type G). Immunoglobulins are antibodies produced by the immune system to help fight off infections and diseases. There are different types of immunoglobulins, including IgE, IgG, and IgM. IgG is the most abundant type of immunoglobulin in the body and is involved in long-term immunity. It plays a crucial role in recognizing and neutralizing pathogens, such as bacteria and viruses, and is also responsible for providing passive immunity to newborns through the placenta.

Glucose obtained from our food is indeed used as fuel for our body's energy needs. Additionally, some of the glucose is stored in the liver as glycogen. This glycogen serves as a short-term reservoir of nutrients that can be readily accessed when our body needs an extra supply of glucose. Therefore, the statement is true.

Insulin plays a crucial role in weight control as it regulates the storage and utilization of glucose in the body. When insulin levels are high, it promotes the storage of excess glucose as fat, leading to weight gain. Additionally, insulin inhibits the breakdown of fat, further contributing to its reputation as the "fat hormone." Therefore, it is accurate to refer to insulin as the "fat hormone" due to its significant impact on weight control.

The statement is true because the gastrointestinal system refers to the organs involved in the digestion and absorption of food, and it is indeed a hollow tube that extends approximately 4.5 meters in length. This tube includes organs such as the mouth, esophagus, stomach, small intestine, and large intestine, which are all connected to form a continuous pathway for food to travel through.

After a meal, the process of digestion begins in the stomach and continues in the small intestine. The food is broken down into smaller molecules, including nutrients, through the action of enzymes. These nutrients are then absorbed into the bloodstream through the walls of the small intestine. This entire process can take varying amounts of time depending on factors such as the composition of the meal and individual metabolism. Therefore, it is possible for nutrients to start entering the bloodstream within an hour, but it can also take longer, hence the answer "an hour or more".

Psychologists do not use the term 'commitment' to describe the driving force behind an action or behavior. Instead, they use terms like motivation, intention, or determination to explain the factors that influence behavior. Therefore, the given statement is false.