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Chabner med term
ch2 cells
12
Medical
Not Applicable
01/25/2007

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Term
anabolism
Definition
Process of building up complex materials (proteins) from simple materials.
Term
catabolism
Definition
Process of breaking down complex materials (foods) to form simpler substances and release energy.
Term
cell membrane
Definition
Structure surrounding and protecting the cell. It determines what enters and leaves the cell.
Term
chromosones
Definition
Rod-shaped structures in the nucleus that contain regions of DNA called genes. There are 23 pairs of chromosones in every cell except for the sex cells which have 23 single chromosones each.
Term
cytoplasm
Definition
All the material that is outside the nucleus but contained within the cell membrane.
Term
DNA
Definition
Chemical found within each chromosome. Arranged like a sequence of recipes in code, it directs the activities of the cell.
Term
endoplasmic reticulum
Definition
Structure (canals) within the cytoplasm where large proteins are made from smaller protein pieces. Ribosomes are found on the endoplasmic reticulum.
Term
genes
Definition
Regions of DNA within each chromosome.
Term
karyotype
Definition
Pictures of chromosomes in the nucleus of a cell. Chromosomes are arranged in numerical order to determine theior number and structure.
Term
metabolism
Definition
Total of chemical processes in a cell, including anabolism and catabolism.
Term
mitochondria
Definition
Structures in the cytoplasm in which foods are burned to release energy.
Term
nucleus
Definition
Control center of the cell, contsaining chromosomes and directing the activities of the cell.
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