Unit 1: Chemistry of Life

Which of the following bonds form "weak bonds between water molecules"?

• Hydrogen

• Nonpolar Covalent

• Ionic

• Polar Covalent

Which of the following bonds from "strong bonds when valence electrons are transferred between atoms"?

• Van der Waals Forces

• Hydrogen

• Polar Covalent

• Ionic

Which of the following describes "polar covalent bonds"?

• Strong bonds formed between atoms where the valence electrons are shared equally

• Strong bonds between atoms where the valence electrons are shared unequally

• Weak bonds formed between water molecules

• Strong bonds between atoms where the valence electrons are transferred

What kind of bond creates glucose?

• Polar Covalent

• Nonpolar covalent

• Ionic

• Van der Waals

What kind of bond creates lipids?

• Polar Covalent

• Nonpolar covalent

• Ionic

• Van der Waals

What are the "positive" subatomic particles in an atom called?

• Neutrons

• Electrons

• Isotopes

• Protons

What are the "negative" subatomic particles in an atom called

• Neutrons

• Electrons

• Isotopes

• Protons

What are the "neutral" subatomic particles in an atom called

• Neutrons

• Electrons

• Isotopes

• Protons

What is pH?

• A substance that decreases the [H+] of a solution generating pH values greater than 7

• Helps maintains homeostasis of pH in your body

• A measure of the concentration of hydrogen ions [H+] and hydroxide ions [OH-} in a solution

• A substance that increases the [H+] of a solution generating pH values less than 7

Which of the following describes an "acid"?

• A substance that decreases the [H+] of a solution generating pH values greater than 7

• Helps maintains homeostasis of pH in your body

• A measure of the concentration of hydrogen ions [H+] and hydroxide ions [OH-} in a solution

• A substance that increases the [H+] of a solution generating pH values less than 7