Download Learning Checkpoint ANSWERS TO QUESTIONS p. 16

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Learning Checkpoint ANSWERS TO QUESTIONS p. 16
1. An organelle is a structure in a cell that maintains the cell life
processes, which include nutrient uptake, movement, growth,
response to stimuli, exchange of gases, waste removal, and
2. The function of the vacuole is to store nutrients, wastes, and other
substances used by the cell. In plant cells, vacuoles store water to
help the cells become firm. The function of vesicles is to transport
materials throughout the cell.
3. The endoplasmic reticulum (ER) carries materials throughout the
cell. The rough ER is associated with making proteins. The Golgi
apparatus receives proteins from the ER and modifies, sorts, and
packages these proteins for delivery throughout the cell or out of
the cell.
4. The thylakoids act as solar collectors, collecting light energy from
the Sun. This energy is used during photosynthesis to produce
5. Plant cells contain chloroplasts and cell walls. Plant cells also
contain chlorophyll, a pigment that makes photosynthesis possible,
and a large central vacuole; vacuoles in animal cells tend to be
small. Some plant cells store energy in the form of starch or oils.
Animal cells store energy in the form of glycogen. Some animal
cells contain specialized compounds, such as hemoglobin in red
blood cells. Animal cells contain centrioles that are involved in cell