If an atom contains 4 protons, 4 neutrons, and 4 electrons, its mass number is
What is 8
100
In a water molecule, shared electrons spend more time around the oxygen atom than the hydrogen atoms. As a result, the oxygen atom is
What is slightly negative
100
Amino acid is to protein as
a. fat is to lipid. c. sugar is to fat.
b. DNA is to RNA. d. monosaccharide is to starch.
What is d. monosaccharide is to starch.
100
Identify the reactant(s) shown here: CO2 + H2O → H2CO3.
What is CO2 and H2O
200
Name two examples of Biological enzymes
What is sucrase, lactase, etc.
200
An ionic bond is formed as the result of
What is transferring electrons.
200
When sugar is dissolved in water, water is the
What is solvent
200
Which of the following is NOT a function of proteins?
a. store and transmit genetic information
b. help build muscle cells
c. control the rate of reactions
d. help grow hair and nails
What is a. store and transmit genetic information
200
Enzymes typically end in what three letters?
What is -ase
300
If an atom's atomic number is 15, how many electrons does it have?
What is a theory
300
The three particles that make up atoms are
What is protons, neutrons, and electrons
300
A map of eastern North America, showing the pH of rainfall in the various states, indicates that the pH of rain in New York State varies from 4.22 to 4.40. According to these figures, the most acidic rainfall in New York State has a pH of
What is 4.22.
300
The molecules of life are all _____________-based.
What is carbon
300
Which of the following statements is true about catalysts?
a. Catalysts slow down the rate of chemical reactions.
b. All catalysts are enzymes.
c. Catalysts are used up during a chemical reaction.
d. Catalysts lower the activation energy of a chemical reaction.
What is . Catalysts lower the activation energy of a chemical reaction.
400
BLAST FROM THE PAST:
Which of the following is NOT a characteristic of all living things?
a. growth and development.
b. ability to move.
c. response to the environment.
d. ability to reproduce
What is b. ability to move.
400
Isotopes are atoms of the same element with the same number of protons and a different number of
What is neutrons
400
Water's high surface tension is due to this property of water
What is cohesion
400
BONUS BOX!!!
Congrats! Your team gets 400 points and gets to pick again.
400
The energy needed to get a reaction started is the
What is activation energy
500
Provide an example of a polysaccharide
What is starch, cellulose
500
Describe what happens in a covalent bond.
What is atoms share electrons
500
Solutions that have more OH– than H+ ions are
What is bases
500
What are the monomers of nucleic acids?
What is nucleotides
500
Which of the following statements about enzymes is NOT true?
a. Enzymes work best at a specified pH.
b. All enzymes have the same shape as their substrates.
c. Enzymes are proteins.
d. The shape of an enzyme allows it to do its job.
What is b. All enzymes have the same shape as their substrates.