AP BIOLOGY

LABORATORY REVIEW

CELL RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How is the energy stored after the process of photosynthesis?
A
light energy
B
the energy in chemical bonds
C
heat energy
Explanation: 

Detailed explanation-1: -In photosynthesis, solar energy is harvested and converted to chemical energy in the form of glucose using water and carbon dioxide. Oxygen is released as a byproduct.

Detailed explanation-2: -During photosynthesis plants store energy from the sun in the bonds of carbohydrates. Energy stored in the chemical bonds of carbohydrates is released during respiration and used to do work in living cells.

Detailed explanation-3: -The plant then releases the oxygen back into the air, and stores energy within the glucose molecules. Inside the plant cell are small organelles called chloroplasts, which store the energy of sunlight.

Detailed explanation-4: -Photosynthesis breaks strong bonds in water and carbon dioxide using energy from sunlight. The new bonds that form are weaker. The bonds in carbohydrates, and indeed fossil fuels, are quite strong – it is the very reactive gas oxygen that has the weak bonds.

Detailed explanation-5: -Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy stored in the bonds to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as movement.

There is 1 question to complete.