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12 Cards in this Set

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catabolism
Process of breaking down complex materials (foods) to form simpler substances and release energy.
cell membrane
Structure surrounding and protecting the cell. It determines what enters and leaves the cell.
chromosomes
Rod-shaped structures in the nucleus that contain regions of DNA called genes. There are 46 chromosomes (23 pairs) in every cell except for the egg and sperm cells, which contain only 23 individual, unpaired chromosomes.
cytoplasm
All the material that is outside the nucleus and yet contained within the cell membrane.
endoplasmic reticulum
Structure (canals) within the cytoplasm. Site in which large proteins are made from smaller protein pieces.
DNA
Chemical found within each chromosome. Arranged like a sequence of recipes in code, it directs the activities of the cell.
metabolism
The total of the chemical process in a cell. It includes both catabolism and anabolism.
genes
Regions of DNA within each chromosome.
nucleus
Control center of the cell. It containes chromosomes and directs the activities of the cell.
mitochondria
structures in the cytoplasm in which foods are burned to release energy.
anabolism
Process of building up complex materials (proteins) from simple materials.
karyotype
Picture of chromosomes in the nucleus of a cell. The chromosomes are arranged in a numerical order to determine their nubmer and structure.