AP BIOLOGY

THE CELL

STRUCTURE AND FUNCTION OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which two macromolecules offer energy storage to the cell?
A
Lipids and carbohydrates
B
lipids and nucleic acids
C
nucleic acids and proteins
D
proteins and carbohydrates
Explanation: 

Detailed explanation-1: -While carbohydrates supply immediate energy for the body, lipids-a class of macromolecule-provide long-term energy storage. Lipids, more commonly known as fats, appear in many foods.

Detailed explanation-2: -Macromolecules : Example Question #7 Both lipids (fat) and glycogen (made up of glucose molecules) store energy in animals. Lipids are used for long-term energy storage while glycogen, found in the liver and muscles, is used for short-term energy storage.

Detailed explanation-3: -So, the correct answer is Lipids.

Detailed explanation-4: -Answer and Explanation: Carbohydrates and lipids are able to store energy in their bonds. This energy can be accessed by cells by breaking these bonds and using the electrons in these bonds to generate a proton gradient in the mitochondria which will be used to generate ATP molecules by oxidative phosphorylation.

Detailed explanation-5: -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.

There is 1 question to complete.