AP BIOLOGY

LABORATORY REVIEW

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which molecule provided by plants accounts for the energy in an animal’s diet?
A
glucose
B
protein
C
salt
D
oxygen
Explanation: 

Detailed explanation-1: -ATP is the energy-containing molecule found in the cells of all animals and humans. Energy from the foods we eat is captured in ATP and used to fuel the workload of cells. The energy stored in carbohydrate molecules from photosynthesis passes through the food chain.

Detailed explanation-2: -Glucose is essential in the synthesis of energy-rich adenosine triphosphate (ATP) molecules.

Detailed explanation-3: -Plants synthesize glucose using carbon dioxide and water, and glucose in turn provides energy requirements for the plant. Humans and other animals that feed on plants often store excess glucose as catabolized (cell breakdown of larger molecules) starch.

Detailed explanation-4: -The primary source of energy for animals is carbohydrates, mainly glucose. Glucose is called the body’s fuel. The digestible carbohydrates in an animal’s diet are converted to glucose molecules through a series of catabolic chemical reactions.

Detailed explanation-5: -Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.

There is 1 question to complete.