Chapter 2 Bolded Words Flashcards
Cell membrane
Surrounds and protects the cell and also regulates what passes into and out of the cell
Cell
Smallest living unit
Nucleus
Controls the operations of the cell. It directs cell division and determines the structure and function of the cell
Chromosomes
Within the nucleus. All human body cells except for the arc cells , the egg and the sperm
Anabolism
Process of building up a large proteins from small protein pieces called amino acids. -Ana means up, -bol means to cast, and -ism is a process
Catabolism
Process whereby complex nutrients are broken down to simpler substances and energy is released. -cata means down, Bol- means to cast, and ism- is a process
Cytoplasm
All the material that is outside the nucleus and yet contained within the cell membrane.
DNA
Chemical found within each chromosome. Arrange like a sequence of recipes in code, it direct the activities of the cell
Endoplasmic reticulum
Network of canals within the cytoplasm of the cell. Here, large proteins are made from smaller protein pieces.
Genes
Regions of DNA within each chromosome
Karyotype
Picture of chromosomes in the nucleus of a cell. The chromosomes arranged in numerical order to determine their number and structure
Metabolism
Total of the chemical process in a cell. It includes catabolism and anabolism.
Meta- means to change
Mitochondria
Structure in the cytoplasm that provides the principal source of energy (miniature “power plants”) for the cell. Catabolism is the process that occurs in mitochondria.