Advanced Biology Chapter 4 and 5 Q&A

A dehydration reaction joins two glucose molecules to form maltose. The formula for glucose is C6H12O6. What is the formula for maltose?

C12H22O11

Write the form for a monosaccharide that has three carbons.

Glycearaldehyde or Dihydroxyacetone is C3H6O3

Why does a denatured protein no longer funtion normally?

The function of each protein is consistent of its shape.

Why are human sex hormones considered lipids?

They are not soluable in water.

a.) are the four main classes of large biological molecules? b.) what class does not consist of polymers?

a.) Lipids, Carbohydrates, protiens, & nucleic acids b.) lipids

The structural level of a protein least affected by a disruption in hydrogen bonding is the a.) Primary level b.) Secondary level c.) Tertiary level d.) Quaternary level e.) All structural levels are equally affected

a.) Primary level

Organic chemistry is currently defined as a.) The study of compounds made only by living cells b.) The study of carbon compounds c.) The study of vital forces d.) The study of natural (as opposed to synthetic compounds e.) The study of hydrocarbons

b.) The study of carbon compounds

Which of the following statements concerning unsaturated fats is true? a.) They are more common in animals than in plants b.) They have double bonds in the carbon chains of their fatty acids c.) They generally solidify at room temperature d.) They contain more hydrogen than do saturated fats having the same number of carbon atoms e.) They have fewer fatty acid molecules per fat molecule

b.) They have double bonds in the carbon chains of their fatty acids

The molecular fomula for glucose is C6H12O6. What would be the molecular formula for a polymer made by linking tne glucose molecules together by dehydration reactions? a.) C60H120O60 b.) C6H12O6 c.) C60H102O51 d.) C60H100O50 e.) C60H111O51

c.) C60H102O51

Which of the following pairs of base sequences could form a short stretch of a normal double helix of DNA? a.) 5'-purine-pyrimidine- purine-pyrimidine-3' with 3' purine-pyrimidine- purine-pryimidine-5' b.) 5'-AGCT-3' with 5'TCGA-3' c.) 5'-GCGC-3' with 5'-TATA-3' d.) 5'-ATGC-3' with 5'-GCAT-3' e.) All of these pairs are correct

d.) 5'-ATGC-3' with 5'-GCAT-3'

Which of the following hydrocarbons has a double bond in its carbon skeleton? a.) C3H8 b.) C2H6 c.) CH4 d.) C2H4 e.) C2H2

d.) C2H4

Which of the following categories includes all other in the list? a.) Monosaccharide b.) Disaccharide c.) Starch d.) Carbohydrate e.) Polysaccharide

d.) Carbohydrate

In a DNA double helix, a regioin along one DNA strand has this sequence of nitrogenous bases: 5'-TAGGCT-3'. Write down the complementary strand, clearly indicating the 5' and 3' ends of the complementary strand.

3'-ATCCGGA-5'

How many molecules of water are needed to completely hydrolyze a polymer that is ten monomers long?

9 molecules of water are needed