Question

a process in which cells use oxygen to release energy stored in sugars *
cellular respiration
photosynthesis
diffusion
chloroplast
this is a required question
which cellular structure in an animal cell helps maintain homeostasis by controlling the transportation of substances into and out of the cell? *
vacuole
cell membrane
cell wall
mitochondria

Explanation:

1. Cellular respiration is the process where cells use oxygen to break - down sugars and release energy. Photosynthesis is the process by which plants use light energy to make sugars. Diffusion is the movement of substances from high to low concentration. Chloroplast is an organelle for photosynthesis.
2. The cell membrane in an animal cell controls the movement of substances in and out of the cell, helping to maintain homeostasis. A vacuole stores substances. A cell wall is not present in animal cells. Mitochondria are the power - houses of the cell for energy production.

Answer:

1. A. Cellular Respiration
2. B. cell membrane