Glossary of Apologia Biology, Module 6 (cont'd.)

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The organelle in animal cells responsible for hydrolysis reactions which break down proteins, polysaccharides, disaccharides, & some lipids
Messenger RNA
The RNA that performs transcription
Spiral strands of protein molecules that form a rope-like structure
Middle lamella
The thin film between the cell walls of adjacent plant cells
The organelles in which nutrients are converted to energy
Nuclear membrane
A highly-porous membrane that separates the nucleus from the cytoplasm
Passive transport
Movement of molecules through the plasma membrane according to the dictates of osmosis or diffusion
Phagocytic vacuole
A vacuole that holds the matter which a cell engulfs
The process by which a cell engulfs foreign substances or other cells
A lipid in which one of the fatty acid molecules has been replaced by a molecule which contains a phosphate group
Pinocytic vesicle
Vesicle formed at the plasma membrane to allow the absorption of large molecules
Plasma membrane
The semipermeable membrane between the cell contents & either the cell wall or the cell's surroundings
A collapse of the cell's cytoplasm due to lack of water
Non-membrane-bound organelles responsible for protein synthesis
Rough endoplasmic reticulum
ER that is dotted with ribosomes
The release of biosynthesized substances for use by other cells
Secretion vesicle
Vesicle that holds secretion products so that they can be transported to the plasma membrane & released
Smooth endoplasmic reticulum
ER that has no ribosomes
The process in which mRNA produces a negative of a strand of DNA
The process by which proteins are formed in the ribosome according to the negative in mRNA
Waste vacuoles
Vacuoles that contain the waste products of digestion

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