Anatomic Anatomy
Bonding and Molecules
Reaction Action
The pH Zone
Molecules of Life
100

Everything from the air in your lungs to the bones in your body has mass and takes up space, making it this.

What is matter?

100

Two hydrogen atoms bonded to one oxygen atom form a molecule of this susbstance.

What is water?

100

Smaller substances combine to produce a larger substance in this type of reaction.

What is a synthesis reaction?

100

A solution with a pH of 7 is described by this term.

What is neutral?

100

Glucose is a single sugar unit belonging to this carbohydrate category.

What is a monosaccharide?

200

These negatively charged particles occupy regions outside an atom's nucleus.

What are electrons?

200

Two atoms hold together by sharing electrons in this type of bond.

What is a covalent bond?

200

A large molecule breaks into simpler substances in this type of reaction.

What is a decomposition reaction?

200

A solution has a pH of 3.  It belongs to this category rather than being basic or neutral.

What is acidic?

200

Linking many simple sugar units creates this type of carbohydrate.

What is a polysaccharide?

300

An atom has eight of these positively charged particles, so its atomic number is eight.

What are protons?

300

A positively charged sodium ion attracts a negatively charged chloride ion through this type of bond.

What is an ionic bond?

300

Two compounds swap parts with one another in this type of reaction.

What is an exchange reaction?

300

As hydrogen ion concentration increases, the pH number moves in this direction.

What is down/decreases?

300

These small building blocks link together to form proteins.

What are amino acids?

400

Carbon-12 and Carbon-14 are forms of the same element with different numbers of neutrons.  They are called these.

What are isotopes?

400

This type of formula uses lines to show the bonds between atoms.

What is a structural formula?

400

A reaction's products can change back into its original reactants, making the reaction this.

What is reversible?

400

These substances help stabilize pH by accepting excess hydrogen ions or releasing hydrogen ions when needed.

What are buffers?

400

A glycerol molecule joined to three fatty acids forms this type of lipid.

What is a triglyceride?

500

A neutral atom loses one electron.  Identify the type of particle it becomes and whether its chare is positive or negative.

What is a positive ion (cation)?

500

This weak attraction forms between the slightly positive hydrogen of one water molecule and the slightly negative oxygen of another.

What is a hydrogen bond?

500

A substance speeds up a reaction and remains available afterward because it is not permanently changed.  This is its general name.

What is a catalyst?

500

Name both condition: blood pH below 7.35 and blood pH above 7.45.

What is acidosis and alkalosis, respectively?

500

Identify both nucleic acids: one contains deoxyribose and is usually double-stranded; the other contains ribose and is usually single-stranded.

What are DNA and RNA, respectively?

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