IONS
PH!
Chemical Bonds
Proteins (foreshadowing)
Water ?
100

An atom has 11 protons. Regardless of how many electrons it has, this number identifies which element it is.

Atomic Number (Amount of Protons)

100

A solution with a pH of 11 is classified as this.

Basic

100

This type of bond forms when atoms share electrons.

Covalent Bond

100

This type of molecule is described in the slides as having the most diverse range of functions in the human body.

Proteins

100

Water is classified as this type of molecule because its atoms share electrons unequally.

Polar

200

An atom gains 3 electrons. Did it become a cation or anion?

Anion

200

A solution with a pH of 7 is classified as this.

Neutral

200

What bond occurs when one atom gives away an electron to another atom?

Ionic Bond

(NaCl)

200

These are the monomers that make up proteins.

Amino Acids

200

A substance that interacts well with water because it is polar is described using this term.

Hydrophilic

300

What is an isotope and what's the difference between different isotopes?

Amount of Neutrons

300

According to the slides, pH measures the relative amount of this substance in a solution.

H+ (Protons)

300

What type of bond would most likely form between an element with 1 valence electron and an element with 7 valence electrons, and why?

An ionic bond; one atom tends to lose an electron while the other gains one.

300

What do enzymes do to chemical reactions?

Catalyze them / Speed them up

300

Fats and oils generally don't dissolve in water because they are this.

Hydrophobic

400

If an atom has 12 protons and 10 electrons, it is no longer neutral. It has this type of ion and this charge.

Answer: What is a cation with a +2 charge?

400

The primary purpose of a buffer is to help prevent this from happening when acid or base is added.

Prevent changes in PH

400

Two atoms share electrons equally. What specific type of covalent bond is formed?

Nonpolar Covalent bond

400

Actin and myosin are proteins involved in this function.

Body Movement

400

A molecule containing both a hydrophilic region and a hydrophobic region is described by this term.

Amphipathic

500

An atom has an atomic number of 10 and forms an ion with a 2+ charge. How many protons, neutrons, and electrons would it have if its mass number is 20?

10 protons, 10 neutrons, 8 electrons.

500

A solution changes from pH 3 to pH 7. The slides would describe this process as this.

Neutralization

500

The slides connect hydrogen bonding to the structure of this molecule that stores genetic information.

DNA

500

A chain containing many amino acids is called this.

Polypeptide

500

Water-based fluids such as CSF help protect the body by providing what function?

Cushioning

M
e
n
u