A eukaryotic cell organelle consisting of a 9 + 0 arrangement of microtubule triplets
A sticky layer that surrounds the cell walls of some bacteria
A structure that connects cells within a tissue to one another
The sum of endergonic and exergonic reactions in a working cell.
A membranous sac in a mature plant cell with diverse roles in reproduction, growth, and development.
An organelle found only in plants and photosynthetic protists that absorbs sunlight
The complex of DNA and proteins that makes up a eukaryotic chromosome.
A threadlike, gene-carrying structure found in the nucleus.
An infolding of the inner membrane of a mitochondrion
The entire contents of the cell, exclusive of the nucleus, and bounded by the plasma membrane.
A network of microtubules, microfilaments, and intermediate filaments
A protein extension from a microtubule doublet in a cilium or flagellum
The collection of membranes related either through direct physical contact or by the transfer of membranous vesicles.
A long cellular appendage specialized for locomotion
A protein covalently attached to a carbohydrate.
An organelle consisting of stacks of flat membranous sacs that modify, store, and route products of the endoplasmic reticulum.
A stacked portion of the thylakoid membrane
A membrane-enclosed bag of hydrolytic enzymes found in the cytoplasm of eukaryotic cells.
A solid rod of actin protein in the cytoplasm, making up part of the cytoskeleton and acting with myosin to cause cell contraction.
A hollow rod of tubulin protein in the cytoplasm of all eukaryotic cells and in cilia, flagella, and the cytoskeleton.
The compartment of the mitochondrion enclosed by the inner membrane and containing enzymes for the Krebs cycle.
An organelle in eukaryotic cells that serves as the site of cellular respiration.
The region in a prokaryotic cell consisting of a concentrated mass of DNA.
A specialized structure in the nucleus, formed from various chromosomes and active in the synthesis of ribosomes.
One of several formed bodies with specialized functions, suspended in the cytoplasm of eukaryotic cells.
A surface appendage in certain bacteria that functions in adherence and the transfer of DNA during conjugation.
An open channel in the cell wall of plants through which strands of cytosol connect from adjacent cells.
The minimum distance that two points can be separated and still be distinguished as two separate points.
A cell organelle constructed in the nucleolus and functioning as the site of protein synthesis in the cytoplasm
That portion of the endoplasmic reticulum studded with ribosomes.
That portion of the endoplasmic reticulum that is free of ribosomes.
The fluid of the chloroplast surrounding the thylakoid membrane
A membrane-enclosed sac taking up most of the interior of a mature plant cell