Describe how plants and animal cells obtain their energy?

Plant cells obtain their energy by making their own food  through the process of photosynthesis. Photosynthesis is a process by which carbon dioxide , water and light energy are utilized by plants to make energy-rich carbohydrates such as glucose. Plants store up the glucose as starch in their tissues.  When plant cells needs energy, they simply take  glucose molecules from their store of starch and use it in cellular respiration to produce ATP, the form of energy that the cell uses to function.

Animals on the other hand do not make their own food but ingest ready made food and  break it down  into its simplest units through the process of digestion. Complex carbohydrates are broken down to glucose units. Glucose is directly taken in by the animal  cells where it is used in cellular respiration to produce ATP ,which fuels the cell activities.

the answer is c) an oak tree

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