CHAPTER 3 REVIEW

Carb, lipid, protein, or N.A.? For the first set of questions, identify

which organic molecule the statement best describes.

Hold up your card!

Immediate energy source for cells Carbohydrates

Amino acids are the monomer Proteins

Controls all cellular activity Nucleic Acids

Examples include saturated and unsaturated

Lipids

Needed to speed up chemical reactions Proteins

Monomers are monosaccharides Carbohydrates

Enzymes and hormones are examples Proteins

Monomers are glycerol and fatty acids Lipids

Composed of phosphate, sugar, and nitrogen base

Nucleic acids

The most effective storage of energy Lipids

Watson and Crick constructed the model of this

Nucleic Acids

Waxes and steroids are examples Lipids

Glycogen and cellulose are examples Carbohydrates

1C:2H:1O Carbohydrates

Adenine, thymine, guanine, and uricil are part of this

Nucleic Acids

Multiple choice

Hold up the appropriate card!

Which of the following is an example of an organic compound?A. NaOH

B. C6H12O6

C. HCl

D. H2O

Which of the following terms includes all of the others on the list?A. Gylcogen

B. Maltose

C. Carbohydrate

D. Monosaccharide

The breakdown of polymers into monomers is what type of reaction?A. Condensation

B. Hydrolysis

C. Dehydration synthesis

D. Both A and C

Which is an example of a saturated fat?A. Margarine

B. Peanut butter

C. Butter

D. Olive oil

Human sex hormones are classified as what?A. Lipids

B. Carbohydrates

C. Proteins

D. Nucleic Acids

E. Both A and C

Most co-enzymes are what?A. Toxins

B. Lipids

C. ATP

D. Vitamins

A molecule of _______ contains the most energy per gramA. Carbs

B. Nucleic Acids

C. Lipids

D. Proteins

What type of bond holds one strand of cellulose to another strand of celluloseA. Hydrogen

B. Covalent

C. Ionic

D. Peptide

The lock and key model is used to illustrate the action of what type of organic molecule?A. Nucleic Acids

B. Proteins

C. Lipids

D. Carbohydrates

Which of the following atoms is NOT found in lipidsA. Carbon

B. Hydrogen

C. Oxygen

D. Nitrogen

Which nitrogen base is NOT found in RNAA. Adenine

B. Cytosine

C. Thymine

D. Guanine

“Ose” at the end of a word symbolizes it is a…A. Protein

B. Carbohydrate

C. Lipid

D. Nucleic Acids

What molecule is shown below?A. Wax

B. Steriod

C. Fatty acid

D. Protein

What molecule is shown below?A. Fatty acid

B. Nucleotide

C. Glycerol

D. Wax

What structure is shown below?A. Glucose

B. Monosaccharide

C. Polysaccharide

D. Disaccharide

What structure is shown below in the box?A. Disaccharide

B. Nucleic Acid

C. Dipeptide

D. Amino Acid

True/False

Hold up the appropriate card!

A large molecule is called a macromolecule

True

DNA is a type of amino acid False

Carbs are a source of immediate/quick energy for cells

True

Waxes act as a barrier between the inside and outside of the cell

False

Linking monomers together to make polymers requires condensation reactions

True

A diglyceride has 3 fatty acid chains attached to a glycerol

False

RNA is a double helix False

Unsaturated fats have all single bonds in hydrocarbon portion of fatty acid

False

There are 4 different amino acids False

The bond between amino acids is called a COC bridge

False

In a phospholipid, the fatty acid chains are polar

False

Isomers have the same structural formulas

False