chapter 2 science section 1 Flashcards
The movement of particles from regions of higher density to regions of lower lower density
diffusion
The diffusion of water through a semipermeable
membrane
osmosis
the movement of substances across a cell membrane without the use of energy by the cell
passive transport
the process by which a cell membrane surrounds a particle and encloses the particle and encloses the particle in a vesicle to bring the particle in the cell
endocytosis
The movement of substances across the cell membrane that requires the cell to use energy
active transport
the process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with the cell membrane
excytosis
The process by which plants,algae, and some bacteria use sunlight, carbon dioxide, and water to make food
photosynthesis
The process by which cells use oxygen to produce energy from food
cellular respiration
The breakdown of food without the use of oxygen
fermentation
The life cycle of a cell
cell cycle
in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; the main ring of DNA
Chromosome
chromosomes that have the same sequence of genes and the same structure.
homologous chromosomes
In eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes.
mitosis
the division of the cytoplasm of a cell
cytokinesis