AP BIOLOGY

ECOLOGY

ENERGY FLOW AND PRIMARY PRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does an animal use the energy from the food consumes?
A
To fuel its life processes such as respiration, digestion, and growth. And some energy is given off as heat.
B
Only to move.
C
To grow in weight.
Explanation: 

Detailed explanation-1: -Animals obtain energy from the food they consume, using that energy to maintain body temperature and perform other metabolic functions. Glucose, found in the food animals eat, is broken down during the process of cellular respiration into an energy source called ATP.

Detailed explanation-2: -The form of energy that living things need for these processes is chemical energy, and it comes from food. Food consists of organic molecules that store energy in their chemical bonds.

Detailed explanation-3: -The energy produced during respiration is used in many different ways, some examples of what it is used for are: Working your muscles. Growth and repair of cells. Building larger molecules from smaller ones i.e. proteins from amino acids.

Detailed explanation-4: -Some simple cells contain only one or two mitochondria. However, complex animal cells that need a lot of energy, like muscle cells, can have thousands of mitochondria. During cellular respiration, sugar is burned in the presence of oxygen to produce energy in the mitochondria of the cell.

Detailed explanation-5: -The digestible carbohydrates in an animal’s diet are converted to glucose molecules through a series of catabolic chemical reactions. Adenosine triphosphate, or ATP, is the primary energy currency in cells; ATP stores energy in phosphate ester bonds.

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