Cell Terms Flashcards
a form of cell division and duplication that is unique to reproductive (gamete) cells
(such as sperm and ova)
meiosis
A layer of the embryonic stem cell that develops into the internal organs
Endoderm
a passive transport mechanism where molecules move from areas of higher concentration to areas of lower concentration.
diffusion
A pathway for substances to move throughout the cell
Endoplasmic reticulum
A simple sugar the body creates when it has more glucose than it can immediately use, it bonds and chemically alters the extra molecule to form it. It is then stored in the skeletal muscles and liver.
Glycogen
A unique type of cell that not only reproduces but also produces different types of cells
Stem cells
allows the transport of specific substances across a cell membrane
channel protein
An import role in cell division and in producing and organizing the cytoskeleton
Centrosome
any chemical process the body uses to break down nutrients or molecules.
catabolism
binds to a ligand molecule and initiates a cellular response
receptor protein
Cellular transport mechanism that does not require the use of energy
Passive Transport
coded segments of DNA that determine traits inherited from parents and carry instructions for producing all the proteins needed to sustain life.
gene
Destroy foreign substances that enter the cell and digest worn-out and used-up cell structures
Lysosome
fluid component of cytoplasm
cytosol
Fluid component of cytoplasm
Cytosol
Hair like projection that increases absorption and surface area of the membrane.
Microvilli
How LMT’s often refer to connective tissue fibers and ground substance as one element: the connective tissue matrix
Matrix
Internal environment of a cell between the plasma membrane and the nucleus; includes the cytosol and organelles
Cytoplasm
Lipid with attached carbohydrates
Cholesterol
lipids with attached carbohydrates
glycolipid
Mechanisms require the cell to use energy to move substances across the plasma membrane
Active transport
Modifies and packages protiens for leaving the cell
Golgi apparatus
Occurs when the body uses molecules as building blocks to repair and build new tissue, or to store nutrients for use at a later time.
Anabolism
Outer covering of a cell also called plasma membrane
Cell membrane