Essential Cell Biology Facts

Your biology exam just got easier with these essential cell facts you need to memorize.

Cell theory states all living things are made of cells, cells are life's basic unit,

and new cells come from existing cells. Key organelles include the nucleus controlling cell activities,

mitochondria producing ATP energy, ribosomes synthesizing proteins, endoplasmic reticulum

transporting materials, and Golgi apparatus packaging proteins. Plant cells add chloroplasts for

photosynthesis and cell walls for structure. Genetics basics: DNA carries hereditary information,

genes determine traits, chromosomes contain multiple genes, and alleles are

gene variations. Dominant alleles mask recessive ones, and offspring inherit one allele from