This is a group in an experiment that allows scientists to determine whether the independent variable alone is the reason for the results of their experimental group(s).
What is a control group?
100
In terms of pH, an acidic solution consists of a higher concentration of this ion.
What are hydrogen ions?
100
These are the four major classes of biologically important organic molecules.
What are proteins, nucleic acids, carbohydrates & lipids.
100
This organelle regenerates ATP from ADP and is known as the powerhouse of the cell.
What is the mitochondria?
100
This is the process by which water moves from a low to a high concentration of solute.
What is osmosis?
200
This is the basic unit of life.
What is a cell?
200
This number represents the number of protons plus the number of neutrons in the nucleus of an atom.
What is the atomic mass.
200
C6H12O6 is the chemical formula for which type of organic molecule?
What is a carbohydrate (glucose).
200
This organelle is covered with ribosomes and synthesizes proteins.
What is the rough endoplasmic reticulum?
200
This is the random motion of molecules which causes them to eventually occupy a given space equally.
What is diffusion?
300
This is a non-living infectious agent consisting of DNA and a protein coat.
What is a virus?
300
These are the numbers of valence electrons that can fit in the first and second electron shells of an atom.
What are 2 electrons and 8 electrons?
300
This is a chemical reaction that bonds two monomers together to make a polymer.
What is dehydration synthesis?
300
This type of molecule makes up the semipermeable membrane of the cell membrane.
What are phospholipids?
300
This type of transport does not require energy but does require a channel protein to move across a cell membrane.
What is facilitated diffusion?
400
This is the regulation of internal conditions by a cell or living organism.
What is homeostasis?
400
This is a description of the three bond types.
What are bonds that share electrons, bonds in which one atom donates an electron to another atom, and bonds that are held together through interactions between polar molecules?
400
These are monomers, dimers (2 monomers), and polymers of carbohydrates.
What is a monosaccharide, a disaccharide, and a polysaccharide?
400
This organelle is the shipping and receiving center of the cell.
What is the golgi body?
400
This type of transport requires energy and a transport protein.
What is active transport?
500
These are the characteristics of life.
What are order, regulation, response to environment, growth & development, energy processing, reproduction & evolutionary adaptation?
500
These are versions of a chemical element that have a different number of neutrons in the nucleus. They are generally unstable.
What are radioisotopes?
500
This breaking up of the structure of a molecule can be caused by extreme heat or very high or low pH.
What is denaturation?
500
A freshwater protist that is put into a saltwater environment would be described this way in terms of the external environment.
What is hypotonic?
500
These connections between plant cells are lined with plasma membrane, connecting the cytoplasm of adjacent cells.