: Literally "little organ"; specialized structures within a cell that perform specific functions.
A double-membrane layer that surrounds the nucleus, dotted with pores that allow material to move in and out. section 7 2 eukaryotic cell structure answer key
: Involved in the formation of cilia, flagella, and the spindle fibers that separate chromosomes during cell division. : Literally "little organ"; specialized structures within a
: A complex of flattened sacs and associated tubules adjacent to the endoplasmic reticulum. It modifies, sorts, and packages proteins and lipids for storage or transport out of the cell. : A complex of flattened sacs and associated
Eukaryotic cells are highly compartmentalized. These primary organelles are frequently tested in "Section 7-2" review sheets: Primary Function Stores genetic info; coordinates cell activities Plants & Animals Ribosomes Site of protein synthesis following nuclear instructions Endoplasmic Reticulum (ER) Assembles lipids (Smooth) and modifies proteins (Rough) Plants & Animals Golgi Apparatus Modifies, sorts, and packages proteins for export Plants & Animals Vacuoles Store materials like water, salts, and proteins Plants & Animals Lysosomes Break down lipids, carbs, and worn-out cell parts Plants & Animals Cytoskeleton Maintains cell shape and aids in movement Plants & Animals Chloroplasts Capture energy from sunlight (Photosynthesis) Plants Only Mitochondria Convert chemical energy from food into usable ATP Plants & Animals Section 7-2 Answer Key: Common Questions
: Known as the "powerhouses" of the cell, they generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy.
Protein synthesis is a critical cellular process. Several organelles work together like an assembly line: