Definition:Word
One of the four bases in DNA, pairs only with thymine
Adenine
Dark body containing a centriole in animal cells, but not plant cells: spindle fibers radiate from the centrosome in preparation for mitosis
Centrosome
Cytoskeleton
System of the membrane in eukaryotic cells that modifies proteins for export by the cell
Golgi apparatus
The smallest part of a substance that can exist separately and still retain its chemical properties and characteristic composition
Molecules
The semipermeable membrane enclosing the cytoplasm of a cell
Cell membrane
Minute objects with plant cells, which contain the green pigment chlorophyll
Chloroplast
Gelatin-like aqueous fluid that bathes organelles on the inside of the cell membrane
Cytosol
One of the four bases of DNA, pairs only with cytosine
Guanine
Plural for nucleus
Nuclei
Membranous covering of a cell-secreted by the cytoplasm in growing plants
Cell wall
Microscopic, dark-staining body visible in the nucleus of the cell at the time of division, which carries the genes, arranged in linear order. Its number in any species is constant (humans have 23 pairs)
Chromosomes
Genetic proteins like nucleic acid on plant and animal genes and chromosomes control inheritance. Each DNA molecule consists of two strands in the shape of a double helix
DNA
Transmission of genetic factors from parent to offspring
Inheritance
The small rounded body within the cell nucleus, functioning in ribosome manufacture
Nucleolus
The ultimate functional unit of an organic structure (plant or animal)
Nucleus
Living substance within a plant or animal cell excluding the nucleus
Cytoplasm
A cell that contains genetic information or DNA in the nucleus like most organisms
Eukaryote Cell
Organelle containing digestive enzymes, existing primarily in animal cells
Lysosome
Each strand of DNA is a linear arrangement of repeating similar units called nucleotides, which are each composed of one sugar, one phosphate, and a nitrogen base
Nucleotide
Structure that appears during mitosis in animal cells
Centriole
One of the four bases of DNA pairs only with guanine
Cytosine
The simplest unit of inheritance. Physically each gene i a nucleic acid with a unique structure. it influences certain traits
Genes
Organelles that are at the site of aerobic respiration in Eukaryotic cells. Powerhouse of the cell
Mitochondria
The central and most important portion of the cell protoplast is surrounded by a very thin membrane
Nucleus