HOMEOSTASIS/OTHER
Dr. Howard uses a balance beam to represent this mechanism
What is negative feedback?
An atom's valence shell requires this many electrons to become stable
BONUS: What rule is this?
What is eight electrons?
BONUS: What is the Octet Rule?
Three types:
Simple Diffusion
Facilitated Diffusion
Osmosis
What is passive transport?
The site of ATP synthesis in the cell
What is mitochondria?
Childbirth is an example of this mechanism
What is positive feedback?
This bond occurs when two elements are sharing an electron UNEQUALLY
What is a polar covalent bond?
A double layer of these fatty molecules make up the plasma membrane
What is a phospholipid?
When a cell is placed in this kind of solution, too much water/fluid leaves the cell, causing it to shrivel
What is a hypertonic solution?
When acids and bases mix together to level out the pH balance
What is neutralization?
Two atoms that have the same number of protons, but a different number of neutrons
What is an isotope?
Programmed cell death -- causes certain cells to neatly self-destruct
What is apoptosis?
ATP is required to move molecules against its concentration gradient (low to high)
What is active transport?
These four elements make up 96% of the human body
What is oxygen, nitrogen, hydrogen, and carbon?
This can increase the rate of reactions without being chemically changed or becoming part of the product
What is a catalyst?
This feature of a cell helps propel substances such as mucus along a tract like the nasal cavity
What is cilia?
A decrease in size that results from loss of stimulation or use
What is atrophy?
This system gives structure to the body, and stores minerals such as calcium
What is the skeletal system?
This bond occurs between a metal element and a nonmetal element
What is an ionic bond?
The organelle that packages proteins and sends forms lysosomes
BONUS: What is the function of lysosomes?
What is the golgi apparatus?
BONUS: What is intracellular digestion?
The type of cell junctions you would find in an organ such as the stomach
What is a tight junction?