AP BIOLOGY

Detailed explanation-1: -ANSWER: 18-The gas being collected is-(a) Oxygen This is because the plant is kept in brighter sunlight. During this, the process of photosynthesis occurs. The plants taken in carbon dioxide and water to form glucose and release the oxygen gas.

Detailed explanation-2: -Once they have water and carbon dioxide, they can use energy from sunlight to make their food. The leftovers from making the plant food is another gas called oxygen. This oxygen is released from the leaves into the air.

Detailed explanation-3: -Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. Plants also release oxygen into the atmosphere through photosynthesis.

Detailed explanation-4: -In the chloroplast, chlorophyll is the pigment that absorbs the sunlight. Chlorophyll is typically packed into stacks of membranes (called grana); it is in the grana where some of the sunlight is absorbed.