Chemistry of Life Review Game

Ch. 2:

Chemistry of Life

Quizizz Review Game

2-1 Chemistry of Life

• Atoms (protons/ electrons/ neutrons)

• Isotopes

• Ionic Bonds

• Covalent Bonds

Multiple Choice

If the atomic number is 5, and the atomic mass is 15, how many protons are in this element?

• 5

• 10

• 15

• 20

Multiple Choice

T or F? Hydrogen bonds are the bonds between atoms within a water molecule.

• True

• False

Multiple Choice

Isotopes are atoms of the same element that have different amounts of ___ in the nucleus.

• protons

• neutrons

• electrons

2-2 Properties of Water

• Polar

• Cohesion vs. Adhesion

• Solute/ Solvent

• pH scale/ acids/ bases

Multiple Choice

What is hydrogen bonding?

• Weak bonds between the hydrogen atoms of water molecules

• Weak bonds between the oxygen atom of one molecule and a hydrogen atom of another

• Strong bonds between the oxygen atom of one molecule and a hydrogen atom of another

• Strong bonds between the hydrogen atoms of water molecules

Multiple Choice

What is the pH of a neutral solution?

• 2

• 6

• 7

• 9

Multiple Choice

T or F? The distribution of charge in a water molecule can be seen as the presence of negative charge on the hydrogen side and positive charge on the oxygen side.

• True

• False

Multiple Choice

As much as ___ percent of Earth's water is on the planet's surface.

• 58

• 63

• 70

• 85

Multiple Choice

Which of the following is a unique property of water?

• its high surface tension

• its ability to absorb large amounts of heat

• its ability to dissolve many polar compounds

• all of the above

Multiple Choice

A solution with a pH higher than 7 is called a ___ solution.

• Acidic

• Basic

• Neutral

• None of the above

2-3 Carbon Compounds

• monomer/ polymer

• monosaccharids/ carbohydrates

• fatty acids/ lipids

• nucleotides/ nucleic acids

• amino acids/ proteins

Multiple Choice

T or F? Polysaccharides are also called simple sugars.

• True

• False

Multiple Choice

T or F? Enzymes consist of chains of fatty acids.

• True

• False

Multiple Choice

Carbohydrates contain ____.

• Carbon

• Hydrogen

• Oxygen

• All of the above

Multiple Choice

T or F? There are 16 different amino acids that are found in the proteins of living organisms.

• True

• False

Multiple Choice

Monosaccharides are the building blocks of what type of organic compound?

• Nucleic Acids

• Proteins

• Carbohydrates

• Lipids

Multiple Choice

Amino acids are the building blocks of what type of organic compound?

• Nucleic Acids

• Proteins

• Carbohydrates

• Lipids

Multiple Choice

___ are organic compounds such as steroids or fatty acids.

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Multiple Choice

The sequence of amino acids in a protein can by thought of as its ___ structure.

• Quaternary

• Secondary

• Tertiary

• Primary

Multiple Choice

Protein synthesis from amino acid monomers is controlled by ___.

• Genes

• Enzymes

• DNA

• Peptides

Multiple Choice

T or F? Organic compounds such as DNA or RNA are called nucleotides.

• True

• False

2-4 Chemical Reactions

• reactants/ products

• activation energy

• catalyst

• enzyme

• substrate

Multiple Choice

Which of the following do enzymes help living organisms achieve?

• Decreasing the number of reactants in a biochemical reaction

• Increasing the rate of a biochemical reation

• Changing the products produced by a biochemical reaction

• None of the above

Multiple Choice

The role of an enzyme in a chemical reaction is to ___.

• Emulsify fats

• Prevent denaturation

• Speed up the reaction

• Buffer any acids or bases

Multiple Choice

T or F? Enzymes are used up in chemical reactions.

• True

• False

Multiple Choice

A catalyst _____ a chemical reaction.

• slows down

• speeds up

• stops

Multiple Choice

What makes a chemical reaction endothermic?

• Heat absorption

• Release of heat

• Loss of atoms

• None of the above

Multiple Choice

T or F? Activation energy does not provide the "push" needed to start a chemical reaction.

• True

• False

Multiple Choice

T or F? Anabolic reactions build up bigger molecules from smaller ones.

• True

• False