Chapter 6: A Tour of the Cell
Structures specialized to perform distinct processes within a cell.
The soluble portion of the cytoplasm, which includes molecules and small particles, such as ribosomes, but not the organelles covered with membranes.
Contain a nucleus and other organelles that are bound by membranes.
The region of the cell between the cell membrane and the nucleus.
The membrane at the boundary of every cell that acts as a selective barrier, thereby regulating the cells chemical composition.
double membrane perforated with pores that control the flow of materials in and out of the nucleus
A netlike array of protein filaments lining the inner surface of the nuclear envelope; it helps maintain the shape of the nucleus.
A threadlike, gene-carrying structure found in the nucleus. Consists of one very long DNA molecule and associated proteins.
The readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins
Small, dense region within most nuclei in which the assembly of proteins begins.
A network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles.
Small membrane-bound sac that functions in moving products into, out of, and within a cell.
Synthesis of lipids, phospholipids and steroid sex hormones-help detoxify drugs and poisons (liver cells).
A network of interconnected membranous sacs in a eukaryotic cells cytoplasm; covered with ribosomes that make membrane proteins and secretory proteins.
A protein with one or more carbohydrates covalently attached to it.
Vesicles in transit from one part of the cell to another.
stack of membranes in the cell that modifies, sorts, and packages proteins from the endoplasmic reticulum
Process in which extensions of cytoplasm surround and engulf large particles and take them into the cell.
A cell organelle that contains digestive enzymes.
A membranous sac that helps move excess water out of the cell.
The organelles in which nutrients are converted to energy.
Organelles that capture the energy from sunlight and convert it into chemical energy in a process called photosynthesis.
A microbody containing enzymes that transfer hydrogen from various substrates to oxygen, producing and then degrading hydrogen peroxide.
Infoldings of the inner membrane of a mitochondrion that houses the electon transport chain and the enzyme catalyzing the synthesis of ATP.
Membranous structures within a chloroplast that serve as the site for light harvesting in photosynthesis.
The fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water.
Network of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell movement.
the motion of cytoplasm in a cell that results in a coordinated movement of the cells contents.
Strong layer around the cell membrane in plants, algae, and some bacteria.