AP BIOLOGY

Detailed explanation-1: -The correct answer: The macromolecule which acts as the primary energy source for an organism is D) carbohydrate. The primary source of energy in most of the organisms is carbohydrate as it is the most abundant in most of the organism.

Detailed explanation-2: -Answer and Explanation: The macromolecule that is the primary source for organisms is carbohydrates. Carbohydrates are sugars, and the most basic macromolecule sugar Is glucose. Many organisms are only able to use glucose as an energy source.

Detailed explanation-3: -Glucose, or blood sugar, is the main source of energy for your body’s cells, tissues, and organs. Glucose can be used immediately or stored in the liver and muscles for later use.

Detailed explanation-4: -Carbohydrates, also known as carbs, are vital at every stage of life. They’re the body’s primary source of energy and the brain’s preferred energy source. Carbs are broken down by the body into glucose – a type of sugar. Glucose is used as fuel by your body’s cells, tissues, and organs.

Detailed explanation-5: -Energy Production Many cells prefer glucose as a source of energy versus other compounds like fatty acids. Some cells, such as red blood cells, are only able to produce cellular energy from glucose.