Cells and Tissue Flashcards
Process of building up large proteins from small protein pieces called amino acids.
anabolism
Process whereby complex nutrients are broken down to simpler substances and energy is released.
catabolism
Structure surrounding and protecting the cell. It determines what enters and leaves the cell.
cell membrane
Rod-shaped structures in the nucleus that contain regions of DNA called genes. There are 46 _____ (23 pairs) in every cell except for the egg and sperm cells, which contain only 23 individual, unpaired _____.
chromosomes
All of the material that is outside of the nucleus and yet contained within the cell membrane.
cytoplasm
Chemical found within each chromosome. Arranged like a sequence of recipes in code, it directs the activities of the cell.
DNA
Network of canals within the cytoplasm of the cell. Here, large proteins are made from smaller protein pieces.
endoplasmic reticulum
Regions of DNA within each chromosome.
genes
Picture (classification) of chromosomes in the nucleus of a cell. The chromosomes are arranged in numerical order to determine their number and structure.
karyotype
Total of the chemical processes in a cell. It includes catabolism and anabolism.
Metabolism
Rod-shaped structures in the cytoplasm that provide the principal source of energy (miniature “power plants”) for the cell. Catabolism is the process that occurs in _____.
mitochondria
Control center of the cell. It contains chromosomes and directs the activities of the cell.
nucleus
Type of cell that is long and slender and contains fibers that aid in contacting and relaxing.
muscle cell
A lining and skin cell that may be square and flat to provide protection.
epithelial cell
A cell that is long and has various fibrous extensions that aid in its job of carrying impulses.
nerve cell
A cell that contains large, empty spaces for ____ storage.
fat cell
Term that describes the change in cells as they mature and specialize.
differentiation
Collection of fat cells.
adipose tissue
Flexible connective tissue often attached to bones at joints. _____ forms part of the external ear and the nose. Rings of _____ surround the trachea.
cartilage
Specialist in the study of tissues.
histologist