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Cell Anatomy

Across
A microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. They include the bacteria and cyanobacteria
The material of which the chromosomes of organisms other than bacteria (i.e., eukaryotes) are composed. It consists of protein, RNA, and DNA.
Parts of the cell that are adapted and/or specialized for carrying out one or more vital functions, analogous to the organs of the human body
The material or protoplasm within a living cell, excluding the nucleus.
Polymers of tubulin that form part of the cytoskeleton and provide structure and shape to eukaryotic cells.
It packages proteins into membrane-bound vesicles inside the cell before the vesicles are sent to their destination
Isolates and protects a cell's DNA from various molecules that could accidentally damage its structure or interfere with its processing
Links amino acids together in the order specified by the codons of messenger RNA (mRNA) molecules to form polypeptide chains
Conduit which acts as an interface between the nucleus and the rest of the cell
It houses the cell's chromosomes, and is the place where almost all DNA replication and RNA synthesis (transcription) occur
Down
Essentially enclosed compartments which are filled with water containing inorganic and organic molecules including enzymes in solution, though in certain cases they may contain solids which have been engulfed
Spherical vesicles that contain hydrolytic enzymes that can break down many kinds of biomolecules
A cylindrical organelle composed mainly of a protein called tubulin. involved in the organization of the mitotic spindle and in the completion of cytokinesis.
A specialized region within the nucleus where ribosome subunits are assembled
Contain enzymes that participate in the preparatory or intermediate stages of biochemical reactions within the cell. This facilitates the breakdown of fats, alcohols and amino acids. Generally they are involved in detoxification of peroxides and in photo respiration in plants
An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers (cristae).
Primarily composed of polymers of actin, but are modified by and interact with numerous other proteins in the cell
An old term for the contents of a cell's nucleus.
Acts to protect the cell mechanically and chemically from its environment
The clear, semi-fluid material between the meshes of the cell reticulum
This special complex forms when a free ribosome begins translating the mRNA of a protein destined for the secretory pathway.
These are areas where the transport vesicles that contain lipids and proteins made in the ER, detach from the ER and start moving to the Golgi apparatus
May be either unicellular or multicellular, and include many cell types forming different kinds of tissue