AP BIOLOGY

Detailed explanation-1: -They take food from the host plant. Plants use simple chemical substances like carbon dioxide, water and minerals for the synthesis of food. Chlorophyll, water, carbon dioxide and sunlight are the essential requirements for photosynthesis.

Detailed explanation-2: -Light work Their roots take up water and minerals from the ground and their leaves absorb a gas called carbon dioxide (CO2) from the air. They convert these ingredients into food by using energy from sunlight. This process is called photosynthesis, which means ‘making out of light’.

Detailed explanation-3: -Plants, like other living things need nutrients to keep growing. Most fertilizer packages list three plant nutrients-nitrogen, phosphorus, and potassium (N-P-K, in that order);

Detailed explanation-4: -Stems carry water and nutrients taken up by the roots to the leaves. Then the food produced by the leaves moves to other parts of the plant.

Detailed explanation-5: -Although all green plants make their food by photosynthesis, they also need to get nutrients from the soil. These dissolve in water and are taken up by the roots of the plant. The most important plant nutrients are nitrogen (N), phosphorous (P), and potassium (K).