Bio Chapter 4 Vocabulary
Terms in this set (68)
anchors the cilium or flagellum
idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
A rigid layer of nonliving material that surrounds the cells of plants and some other organisms.
all the chemical activities of a cell
large, fluid-filled organelle; store water, enzymes, metabolic, wastes, and other materials in plants
structure in an animal cell that helps to organize cell division
An organelle found in plant and algae cells where photosynthesis occurs
Clusters of DNA, RNA, and proteins in the nucleus of a cell
A threadlike, gene-carrying structure found in the nucleus. Each chromosome consists of one very long DNA molecule and associated proteins.
Hairlike projections that extend from the plasma membrane and are used for locomotion
Infoldings of the inner membrane of a mitochondrion that houses the electon transport chain and the enzyme catalyzing the synthesis of ATP.
A jellylike fluid inside the cell in which the organelles are suspended
A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement
microscope that forms an image by focusing beams of electrons onto a specimen
Rough ER, smooth ER, Golgi apparatus. A network of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles.
Endoplasmic Reticulum (ER)
An extensive membranous network in eukaryotic cells, continuous with the outer nuclear membrane and composed of ribosome-studded (rough) and ribosome-free (smooth) regions.
A theorized process in which early eukaryotic cells were formed from simpler prokaryotes.
Contain a nucleus and other organelles that are bound by membranes.
The substance in which animal tissue cells are embedded, consisting of protein and polysaccharides.
A long, hairlike structure that grows out of a cell and enables the cell to move.
A protein with one or more carbohydrates covalently attached to it.
A system of membranes that modifies and packages proteins for export by the cell
stack of thylakoids
membrane proteins; they transmit signals between the ECM and cytoskeleton
Threadlike proteins in the cell's cytoskeleton that are roughly twice as thick as microfilaments
electron flow causes the hydrogen ions to be pumped from the matrix to the mitochondria
An optical instrument with lenses that refract (bend) visible light to magnify images of specimens.
An organelle containing digestive enzymes
Long, thin fibers that function in the movement and support of the cell
photograph of the view through a microscope
microscopic cylinders that support and give the cell shape
The compartment of the mitochondrion enclosed by the inner membrane and containing enzymes and substrates for the Krebs cycle.
Powerhouse of the cell. location of cellular respiration
layer of two membranes that surrounds the nucleus of a cell
A dense region of DNA in a prokaryotic cell.
Found inside the nucleus and produces ribosomes
Control center of the cell
A tiny cell structure that carries out a specific function within the cell
Break down fatty acids and produce hydrogen peroxide
A selectively-permeable phospholipid bilayer forming the boundary of the cells
channels through cell walls that connect the cytoplasms of adjacent cells
A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles; found only in the domains Bacteria and Archaea.
site of protein synthesis
Rough Endoplasmic Reticulum
System of internal membranes within the cytoplasm. Membranes are rough due to the presence of ribosomes. functions in transport of substances such as proteins within the cytoplasm
scanning electron microscope
An electron microscope used to study the fine details of cell surfaces
smooth endoplasmic reticulum
An endomembrane system where lipids are synthesized, calcium levels are regulated, and toxic substances are broken down.
fluid portion of the chloroplast; outside of the thylakoids
A flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy.
transmission electron microscope
An electron microscope used to study the internal structure of thin sections of cells
transport vessicle / bleb
how the polypeptides are transported
Cell organelle that stores materials such as water, salts, proteins, and carbohydrates
A small, membrane-bound sac that transports subjects in and out of cells.
OTHER SETS BY THIS CREATOR
Chap 10 - DNA Replication
El cuerpo y la medicina
Chapter 8 SOS Cell Division
Ch 7 Key Terms about photosynthesis