Question

all cells have parts that work together to carry out functions necessary for life. read the descriptions of the functions of some organelles of a plant cell. chloroplasts carry out photosynthesis to make sugar from carbon dioxide and water. a plant cell can use this sugar as a source of energy. mitochondria break down sugar. like other cell parts, mitochondria are found within the cytoplasm. in both the mitochondria and the cytoplasm, chemical reactions break down sugar to form new molecules. this process releases energy for the plant cell to use. complete the paragraph. in a plant cell, perform photosynthesis to make sugar. then, chemical reactions in the cytoplasm and use the sugar and release energy for the plant cell to use. this shows that the plant cells parts on each other to generate energy for the cell.

Explanation:

The first blank requires the organelle that performs photosynthesis. As per the description, chloroplasts carry out photosynthesis. The second blank needs the organelle (along with cytoplasm) that uses sugar and releases energy. The text states mitochondria break down sugar (along with cytoplasm - as per "In both the mitochondria and the cytoplasm, chemical reactions break down sugar..."). The third blank is about how cell parts interact - the description starts with "All cells have parts that work together...", so the relationship is they depend on (or work with) each other.

Answer:

In a plant cell, chloroplasts perform photosynthesis to make sugar. Then, chemical reactions in the cytoplasm and mitochondria use the sugar and release energy for the plant cell to use. This shows that the plant cell's parts depend (or work) on each other to generate energy for the cell.