AP BIOLOGY

LABORATORY REVIEW

CELL RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following best explains the purpose of photosynthesis?
A
In photosynthesis, sunlight is used to make sugar
B
In photosynthesis, sunlight is used to make ATP
C
In photosynthesis, glucose is used to make ATP
D
In photosynthesis, oxygen is used to make sugar
Explanation: 

Detailed explanation-1: -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. Cellulose is used in building cell walls.

Detailed explanation-2: -The main purpose of photosynthesis is to convert radiant energy from the sun into chemical energy that can be used for food.

Detailed explanation-3: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

Detailed explanation-4: -Inside the chloroplasts within leaves, light, water (H2O), and carbon dioxide (CO2) are transformed into energy and sugar (glucose). Using water, sunlight is converted into energy-storing molecules within the plant cells. The energy from these molecules is then used to create glucose from CO2.

Detailed explanation-5: -During the process of photosynthesis, energy from sunlight is captured and used to produce sugar molecules. The energy that is stored in ATP and NADPH molecules is used to produce carbohydrates from carbon dioxide in the Calvin cycle.

There is 1 question to complete.