BIOLOGY FINALS CHAPTER 2

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A molecule with the formula C55H110O55 is probably a(n)

polysaccharide

Which of the following is a carboxyl group?

-COOH

What is the complementary sequence to the DNA strand TCGATGG

AGCTACC

The molecular formula of most monosaccahrisdes represent a multiple of

CH2O

Which of these is composed of many simple sugars molecules?

Glycogen

Which of the following options correctly pairs a polymer and its monomers

DNA and nucleotides

Which of the following is NOT a polymer?

Glucose

Humans can digest starch but not cellulose because?

Humans can have have enzymes that can hydrolyze the a-glycosidic linkages but not the b-glycosidic linkages of cellulose

Which of the following statements about monomers and polymers found in organisms is false?

Monomers are joined by the proteins of hydrolysis

A glycosidic linkage in analogous to which of the following in proteins

Peptide bond

Which statements is true about macromolecules?

Proteins are made up from amino acids

How do phospholipids interact with water molecule?

The polar heads interact with the water the non polar tails do not.

Which of the following is the best explanation for why vegetable oil is a liquid at room temperature while animal fats are solid?

Vegetable oil has more double bonds than animal fat

Which of the following is NOT a monomer

a protein

Which of the following contains a carboxyl group and an amino group?

amino acid

Cellulose is one type of ...

carbohydrate

The two elements always present in organic compounds are

carbon & hydrogen

Which of the following lists contain only polysaccharide ?

cellulose, starch, glycogen

To build a DNA model, molecules needed include...

deoxyribose, phosphate groups, and nitrogen

Which of the following is NOT a function of proteins?

lipids

Which of these is a type of lipid?

oil

A phospholipid is composed of _______

one glycerol molecule linked to one phosphate group to two fatty acids

The type of nucleic acid that is found in both in the nucleus and in the cytoplasm

only RNA

All nucleotides contain the same kind of ________

phosphate groups

Amino Acids are the building blocks of ___________

protien

The building blocks for carbohydrates are ________

simple sugars

The primary structure of a protein is ________________

the amino acid sequence of the polypeptide chain

Amino acids can be distinguished from one anther by what?

the chemical properties of their R groups

Propanol and isopropanol are isomers. This means that they have

the same molecular formula, but different chemical properties

The amino acid sequence of proteins is determined by

the sequence of the nucleotides in the RNA

Fatty acids with double bonds between some of their carbons are said to be

unsaturated

When two amino acids are bonded chemically

water is released


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