Chapter 1
Evolution can be best described as ...
The ability of organisms to adapt and change over generations.
A solution with a pH above 7 is known as what?
Basic
During a chemical reaction, reactants are transformed into:
Products
Covalent and Ionic
What is the largest ocean on Earth?
Pacific ocean
Which nucleic acid contains the sugar ribose?
RNA
What is responsible for the dip in the surface of water in a graduated cylinder?
Adhesion
Which polysaccharide do animals use to store excessive sugar?
Glycogen
What is the pH of most cells of the human body's internal pH?
6.5-7.5
What is the name of the longest river in the world?
Nile
Which factor can affect enzyme activity by altering protein structure?
High temperature and extreme pH
Which level of protein structure refers to the sequence of amino acids?
Primary
Covalent bonds form when...
Two atoms share electrons
Glucose, Galactose, and Fructose are examples of...
Monosacchrides
What is the most-consumed beverage in the world that is not water?
Tea
Proteins are polymers of...
Amino acids
What are two types of weak chemical bonds?
Van der Waals and Hydrogen
What does cohesion produce?
surface tension
What is the function of enzymes in living things?
lower activation energy
What is the body's largest organ?
The skin
Nucleotides consists of...
sugar, phosphate, and a nitrogenous base
What makes carbon especially important in organic chemistry?
It has 4 valence electrons allowing strong covalent bonds.
A lipid with no carbon-carbon bond is known as..
Saturated
The process of forming polymers is known as...
Polymerization
How many feet are in a yard?
3