Ans: aids in cell division and control of genetic info, contains DNA (think the egg yolk)
3). Ribosomes
Ans: RNA-protein complexes; float freely in cytoplasm; provide sites for cellular protein
synthesis; packages and modifies protein for transportation and secretion
4). Endoplasmic reticulum (er)
Ans: specializes in the synthesis and transport of the protein and lipid components of
most of the cells organelles (memory factory)
5). Golgi complex
Ans: Organelle that packages and distributes proteins into vesicles and transports
within and outside of cell (refining plant in cytoplasm; traffic cop- what goes in and out of
cytoplasm)
6). Lysosomes
Ans: An organelle containing digestive enzymes; digest and remove wastes, digest
debris from dead cells; if ruptured, they can digest cell contents; autodigestion occurs in
starvation
7). Mitochondria
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, Ans: Powerhouse of the cell, organelle that is the site of ATP (energy) production;
pathway for metabolism of carbs, lipids, and amino acids into ATP; to keep the cell alive;
can grow and self-replicate in the cell
8). Cytoskeleton
Ans: A network of fibers that holds the cell together, helps the cell to keep its shape,
and aids in movement; "bones and muscle" of the cell; have cilia to move it on out
9). Characteristics of plasma membrane
Ans: made up of lipids and proteins; the basic component is a bi-layer of lipid
molecules that are responsible for the structural integrity of the membrane
10). The _______________ prevents water soluble molecules from entering cells across the
plasma membrane
Ans: Phospholipid layer
11). Prokaryote
Ans: unicellular organism lacking a nucleus; contains NO organelles (include
cyanobacteria, bacteria, and rickettsia)
Ans: protein molecules on the plasma membrane, in the cytoplasm, or in the nucleus
that can recognize and bind with specific smaller molecules called ligands
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