Biology Exam Chapters 3&4 Flashcards
Lactose intolerance is the ability to
Digest lactose
Lactose intolerance
Does not affect the consumption of beverages made from soy or rice
Carbon is able to form an immune diversity of organic molecules because of carbon’s
A. Tendency to form covalent bonds
B. ability to bond with up to four other atoms
C. Capacity to form single and double bonds
D. Ability to bond together to form extensive, branched, or nub ranches “carbon skeletons”
E. all of the choices are correct
All of the choices are correct
Organic compounds
Always contain carbon
Hydrocarbons
A. Are inorganic compounds
B. are composed of carbon atoms that are attached to hydrogen skeletons
C. Contain only carbon and hydrogen atoms
D. Consist of atoms linked exclusively by single bonds
E. all of the choices are correct
All of the choices are correct
You now know that the old cliche “oil and water don’t mix” is true. Why?
Water exhibits polarity and oil does not
A hydroxyl group is
Characteristics of alcohols
Which of the following contains a carboxyl and an amino group? A. amino acids B. fats C. sugars D. ATP E. vinegar
A. Aminio acids
The results of dehydration synthesis can be reversed by
hydrolysis
Which list below consists of only polymers?
A. sugars, amino acids, nucleic acids, lipids
B. proteins, lipids, nucleic acids, amino acids
C. proteins, lipids, nucleic acids, polysaccharides
D. proteins, lipids, nucleotides, sugars
E. polysaccharides, lipids, amino acids, nucleic acids
C. proteins, lipids, nucleic acids, polysaccharides
The molecular formula of most monosaccharides represents a multiple of
CH2O
A molecule with the formula C55H110O55 is probably a
polysaccharide
Many names for sugars end in the suffix
ose,
sucrose is formed
from two monosaccharides by dehydration synthesis
A disaccharide forms when
two join by dehydration synthesis
which of the following list contains only polysaccharides? A. sucrose, starch, and cellulose B. starch, amino acids, and glycogen C. cellulose, starch, and glycogen D. nucleotides, glycogen, and cellulose E. fructose, cellulose, and glucose
C. cellulose, starch, and glycogen
cellulose differs from starch in that
most animals cannot break down cellulose, whereas starch is easily digested
foods that are high in fiber are most likely derived from
plants
the storage from of carbohydrates in animals is ____________ an in plants is _____________
glycogen and starch
a diet high in animal products may increase the risk for artherosclerosis. This is because
most animals fats are saturated and most animal products contain high levels of trans fat
a triglyceride A. consists of three fatty acids attached to a glycerol B. is hydrophobic C. plays a role in energy storage D. is a type of fat E. all of the choices are correct
E. all of the choices are correct
fatty acids with double bonds between some of their carbons are said to be
unsaturated
if you want to promote the development of atherosclerotic disease, you would eat a diet high in
saturated fats
if you were to add olive oil to your food as part of a diet to lower your risk of atherosclerotic disease, you would use olive oil that
was liquid at room temperature