Cell Structures
Powerhouse of the cell, primary site for ATP synthesis
Movement of molecules from an area of higher concentration to an area of lower concentration
What is simple diffusion?
Cell division that occurs in almost all cell types for growth, repair, and healing in which cells divide once making two identical cells
What is mitosis?
Similar cells with same function
What is tissue?
"Cell suicide"; digestion of a surplus cell by itself
What is autolysis?
"Garbage disposals” of cell, contain digestive enzymes which dispose of cellular debris & worn cellular parts
What are lysosomes?
Molecules are ferried across the membrane by a carrier allowing entrance by a channel
What is facilitated diffusion?
Stage of cell division in which spindle fibers forms, centrioles moving to opposite ends of the cell and the nuclear membrane begins to disappear
What is prophase?
Elongated cells that are specialized to contract in response to stimulation
What is muscular tissue?
Cells' self cleaning process; digests and recycles its own damaged or unnecessary components to maintain cellular health
What is autophagy?
Houses the genetic material (DNA) which directs all of the cells activities
What is the nucleus?
The movement of water from regions of higher concentration to regions of lower concentration
What is osmosis?
Cell division for sexual reproduction in which cells divide twice and make four unique cells
What is meiosis?
Group of tissues that primarily supports, connects, and protects other tissues and organs in the body
What is connective tissue?
Replacement of damaged cells with scar tissue
What is fibrosis?
Located at the center of the nucleus, site of ribosome synthesis
What is nucleolus?
A type of active transport in which a cell engulfs large molecules, particles, or even fluids by wrapping them in a portion of its plasma membrane, entering the cell
What is endocytosis?
The division of the cytoplasm
What is cytokinesis?
Cells of this tissue type have specialized junctions that allow for the rapid spread of electrical impulses
What is cardiac tissue?
Chemical reaction used to convert glucose and oxygen into carbon dioxide, water, ATP, and heat
What is cellular respiration?
Tubular transport network that is studded with ribosomes (makes proteins)
What is rough endoplasmic reticulum (ER)?
The egg that was soaked in 25% sucrose lost mass and shriveled indicating this type of solution/environment.
What is a hypertonic solution?
The codon that encodes for the first amino acid during translation (start codon)
What is AUG?
Specialized for communication by electrical and chemical signals, consist of neurons
What is nervous tissue?
Shrinkage of a tissue through loss in cell size or number; occurs in normal aging or lack of use
Atrophy