The elements retain the appearance of bread and wine, but are indeed the actual Body and Blood of Christ. This is what is meant by Real Presence: the actual, physical presence of Jesus in the Eucharist. Christ instituted this Holy Sacrament of the Eucharist in order to remain with mankind until the end of time (Jn.
Plants make food in their leaves. The leaves contain a pigment called chlorophyll, which colors the leaves green. Chlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis.During the process of photosynthesis, plants release oxygen into the air.People and animals need oxygen to breathe.hlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis. During the process of photosynthesis, plants release oxygen into the air.
When humans or other animals eat food, they use its stored energy to keep warm, maintain and repair their bodies, and move about. Different types of food store different amounts of energy. The amount of energy a food contains is measured in kilocalories (called Calories for short).cientists define energy as the ability to do work. Energy makes things happen. The energy in sunlight makes plants grow, the energy in food enables us to move and helps us to keep warm, and the energy in fuel powers engines. Energy comes in many different forms and can be converted from one form into another.