Module #6: The Cell Flashcards
Absorption
The transport of dissolved substances into cells
Digestion
The breakdown of absorbed substances
Respiration
The breakdown of food molecules with a release of energy
Excretion
The removal of soluble waste materials
Egestion
The removal of nonsoluble waste materials
Secretion
The release of biosynthesized substances
Homeostasis
Maintaining the status quo
Reproduction
Producing more cells
Cytology
The study of cells
Cell Wall
A rigid structure on the outside of certain cells, usually plant and bacteria cells.
Middle lamella
The thin film between the cell walls of adjacent plant cells
Plasma membrane
The semipermeable membrane between the cell contents and either the cell wall or the cell’s surroundings.
Cytoplasm
A jellylike fluid inside the cell in which the organelles are suspended.
Ions
Substances in which at least one atom has an imbalance of protons and electrons.
Cytoplasmic streaming
The motion of cytoplasm in a cell that results in a coordinated movement of the cell’s contents.
Mitochondria
The organelles in which nutrients are converted to energy.
Lysosome
The organelle in animal cells responsible for hydrolysis reaction that break down proteins, polysaccharides, disaccharides, and some lipids