AP BIOLOGY

Detailed explanation-1: -Carbon dioxide is a gas found in the air; plants can take in this gas through tiny holes in their leaves. 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.

Detailed explanation-2: -So how do plants get the carbon they need to grow? They absorb carbon dioxide from the air. This carbon makes up most of the building materials that plants use to build new leaves, stems, and roots. The oxygen used to build glucose molecules is also from carbon dioxide.

Detailed explanation-3: -Plants absorb carbon dioxide from the air through tiny pores called stomata.

Detailed explanation-4: -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-5: -Plants receive Hydrogen via photosynthesis, they receive oxygen via the conversion of Co2. Carbon dioxide is broken down into carbon and is used by the plant for energy which is what forms proteins and carbohydrates.