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Topic 1- Cells
structure and organelles
11
Biology
12th Grade
05/02/2012

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Term
Prokaryotic
Definition
DNA in nucleoid without a membrane (no nucleus); no membranes; small
Term
Eukaryotic
Definition
Chromosomes contained within a membranous nuclear envelope; large
Term
Plasma Membrane
Definition
selectively permeable; made of phospholipids, proteins, and carbs; double layer of phospholipids embedded with proteins
Term
Cytosol
Definition
semifluid substance within the membrane containing organelles
Term
Ribosomes
Definition
make proteins using instructions from genes; nonmembraneous; free in cytoplasm or bound to ER
Term
Nucleus
Definition
membrane-enclosed organelle; surrounded by nuclear envelope; contains nucleolus and chromatin
Term
Cytoplasm
Definition
region between the nucleus and the plasma membrane
Term
Nuclear Envelope
Definition
double membrane surrounding nucleus; perforated by pores lined by a pore complex (regulating passage of materials)
Term
Chromosome
Definition
carry genetic information; contain DNA and associated proteins (chromatin)
Term
In animal cells but not plant cells
Definition
Lysosomes, Centrioles, Flagella
Term
In plant cells but not animal cells
Definition
Chloroplasts, central vacuolte and tonoplast, cell wall, plasmodesmata
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