Section 1 Chapter 2 Flashcards
Diffusion
the movement of particles from regions of higher density regions of lower denisty
Osmosis
the diffusion of water through a semipermeable membranr
Passive Transport
the movement of substances across a cell membrane without the use of energy by the cll
Active Transport
the movement of substances across the cell membrane that requires the cell to use energy
Endocytosis
The process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into a cell
Exocytosis
The process in which a cell release a particle by enclosing a particle inside a vesicle to bring it out of the cell.
Photosynthesis
the process plants algae and some bacteria use sunlight and carbon dioxide and water to make food
Cellular respiration
process which cells use oxygen to produce energy from food
Fermentation
the breakdown of food without the use of oxygen
Cell cycle
the life cycle of a cell
chromosome
in a eukaryotic cell one of the structures on the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of dna
homologous chromosomes
chromosomes that have the same sequence of genes and the same structure
mitosis
a process of cell division that forms two new nuclei, each of which has the same # of chromosomes