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Match the organelle with its description

OrganelleDescriptionChloroplastsA. Convert energy from sunlight into chemical energy that is stored in food B. Stack of membranes that modifies, sorts, and packages proteins and other materials for storage or release C. Convert chemical energy stored in food into a form that can be easily used by the cell D. An internal membrane system where lipid components of cell membranes are made E. Saclike structures that store materials F. Small particles of RNA and protein on which proteins are assembled using instructions from DNA G. Filled with enzymes used to break down carbohydrates into smaller molecules\begin{matrix} \text{Organelle} & \text{Description}\\ \text{Chloroplasts} & \text{A. Convert energy from sunlight into chemical energy that is stored in food}\\ \text{ } & \text{B. Stack of membranes that modifies, sorts, and packages proteins and other materials for storage or release}\\ \text{ } & \text{C. Convert chemical energy stored in food into a form that can be easily used by the cell}\\ \text{ } & \text{D. An internal membrane system where lipid components of cell membranes are made}\\ \text{ } & \text{E. Saclike structures that store materials}\\ \text{ } & \text{F. Small particles of RNA and protein on which proteins are assembled using instructions from DNA}\\ \text{ } & \text{G. Filled with enzymes used to break down carbohydrates into smaller molecules}\\ \end{matrix}

Question

Petroleum refineries can be found throughout the United States. What does it mean to refine petroleum, and why must this process be performed?

Solution

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Petroleum is a complicated combination of several different compounds formed throughout thousands to millions of years by the decomposition of living organisms.

Hydrogen and carbon are the most abundant component in petroleum, with minor quantities of oxygen, nitrogen, and sulfur.

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