AP BIOLOGY

LABORATORY REVIEW

CELL RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do organism get the energy they need?
A
by burning food molecules and releasing energy as heat
B
by breathing oxygen into the lungs and combining it with CO2
C
by breaking down food molecules gradually and capturing their chemical energy
D
by using the sun’s energy to break down food molecules and form chemicals
Explanation: 

Detailed explanation-1: -In your body, glucose is the form of energy that is carried in your blood and taken up by each of your trillions of cells. Cells do cellular respiration to extract energy from the bonds of glucose and other food molecules. Cells can store the extracted energy in the form of ATP (adenosine triphosphate).

Detailed explanation-2: -Animals consume food to replenish energy; their metabolism breaks down the carbohydrates, lipids, proteins, and nucleic acids to provide chemical energy for these processes. Plants convert light energy from the sun into chemical energy stored in molecules during the process of photosynthesis.

Detailed explanation-3: -Answer and Explanation: Organisms get the energy they need through food. Some organisms, called autotrophs, create their own food using for example, photosynthesis. Other living organisms, called primary consumers, get their food by eating the autotrophs, such as plants, algae, and cyanobacteria.

Detailed explanation-4: -Organisms get the energy they need from food. A calorie is the amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius. Cellular Respiration is the process that releases energy from food in the presence of oxygen.

There is 1 question to complete.