BIOLOGY FINALS CHAPTER 2
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
