Scientific Method
What term refers to a statement that is formed from an observed set of facts, also known as an educated guess?
hypothesis
What is the basic unit of matter? (The smallest particle of a pure substance.)
atom
All organic compounds contain this element.
Carbon
This is the smallest unit of life in all living things.
cell
What is the term for a substance that binds to the active site of an enzyme?
substrate
What is a well-tested explanation that unifies a broad range of observations, also known as a hypothesis that has withstood the test of time?
theory
What is the term for a substance that is composed of more than one type of atom?
compound
Give the building block (monomer) for carbohydrates. (Must be spelled correctly to receive points.)
monosaccharide
This term refers to cells that have a nucleus.
Eukaryotic (Eukaryote)
If a substance has a pH of 12, then is the substance a strong acid, weak acid, strong base or a weak base?
strong base
What is the basic unit of mass in the metric system?
gram
This is a compound or an element with a positive or negative charge.
ion
What are the elements found in carbohydrates and lipids? (3)
Carbon, Hydrogen, Oxygen
This term refers to parts of a cell that perform a specific function. Some examples are the Golgi apparatus, endoplasmic reticulum, and mitochondria.
Organelle (little organs)
What is the building block (monomer) for nucleic acids?
nucleotide
What is the basic unit of volume in the metric system?
liter
What are the three particles that make up an atom?
proton, neutron, electron
What are the building blocks (monomers) for lipids? (2)
glycerol and fatty acid
What structure on the cell functions as a transport system by moving materials throughout the cell, sometimes it has ribosomes located on its surface, and it helps build and break down molecules like proteins and lipids?
Endoplasmic Reticulum
Give the pH range for acids.
0-6 (less than 7)
This variable is manipulated by the scientist during an experiment. There can only be one in a controlled experiment.
Independent variable
What is the most important inorganic compound?
water (H2O)
Give the building block (monomer) for proteins.
amino acids
What is the function of the nucleus in a cell?
To control the functions of the cell.
Enzymes (protein catalysts) affect the chemical reactions in living cells by changing the ___________ of the chemical reaction.
speed/ activation energy