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BIOL - 161 Vocab Ch 4
Vocabulary Chapter 4
20
Biology
Undergraduate 2
12/04/2011

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Term
Simple microscope
Definition
uses a single lens to magnify
Term
Exocytosis
Definition
the final step in the secretory pathway
Term
Microtubule
Definition
composed of the protein tubulin
Term
Smooth endoplasmic reticulum (ER)
Definition
involved in the synthesis of steroid hormones
Term
Prokaryotic cell
Definition
a primitive type of cell
Term
Crista
Definition
formed by the mitochondrial inner membrane
Term
Golgi complex
Definition
produces secretory vesicles
Term
Microfilament
Definition
composed of the protein actin
Term
Cytoplasm
Definition
the cellular region outside the nucleus
Term
Lysosome
Definition
contains hydrolytic enzymes
Term
Cilium
Definition
a short projection used for movement
Term
Phospholipid bilayer
Definition
the basic structure of membrane
Term
Primary cell wall
Definition
composed of cellulose
Term
Thylakoid
Definition
formed by the mitochondrial inner membrane
Term
Vacuole
Definition
especially prominent in mature plant cells
Term
Ribosome
Definition
site of protein synthesis
Term
Receptor
Definition
membrane protein involved in recognition of substances
Term
Nuclear envelope
Definition
consists of double membrane
Term
Communicating junction
Definition
allows movement of materials between cells
Term
Nucleolus
Definition
site of ribosome formation
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