CHEM FINAL

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What is the product of the reaction of an alcohol and a carboxylic acid when reacted together under acidic conditions?

an ester

The splitting apart of an ester in the presence of a strong acid and water is called

hydrolysis

How many hydrogen atoms is the carbonyl group in a ketone bonded to?

none

commercially, liquid vegetable oils are converted to solid fats such as margarine by

hydrogenation

galactose is a product of enzymatic hydrolysis of

lactose

the function of the enzyme-substrate complex is to provide an alternative reaction pathway that

decreases the activation energy for the reaction

a noncompetitive inhibitor has a structure that

does not resemble the substrate structure

what classification of alcohol is resistant to oxidation

tertiary

which of the following is NOT true for a competitive inhibitor

it binds to the enzyme at a site remote from the active site

"Physiologic conditions" for reactions within the body are approximately

ph7 & 37 degrees celcius

which group of carbohydrates cannot be hydrolyzed to give smaller molecules

monosaccharides

what classification of alcohol undergoes oxidation to yield a ketone

secondary alcohol

synthesis of cholesterol takes place in

liver

a monosaccharide that consists of 5 carbon atoms, one of which is in a ketone group, is classified as an

ketopentose

a lipoprotein particle functions to

transport nonpolar lipids to body cells

heavy metals denature proteins by

disrupting disulfide bonds

a cycloalkane

has two fewer hydrogen atoms than the corresponding alkane

many of the frangrances of flowers and the flavors of fruits are due to

esters

hemoglobin is an example of a protein with

a gobular structure

in the l-isomer of a fischer projection of a monosaccharide, the oh- group furthest from the carbonyl is written?

on the left of the bottom chiral carbon

a polyunsaturated fatty acid contains more than one

double bond

the alcolhol in this list that would be most soluble in water is

ethanol

the reaction of an alkene and water in the presence of an acid catalyst to produce alcohol is called

hyrdration

fructose does not undergo hydrolysis because its a

monosaccharide

in the iupace naming system, a ketone is named by replacing the -e in the corresponding alkane name with

one

the names of many enzymes can be recognized with the suffix

-ase

the active site of an enzyme

catalyzes the reaction

the dehydration of an alcohol in the presence of a strong acid yields

an alkene

the peptide bonds that link amino acids in a protein are?

aminde bonds

which of the following is found in vinegar?

acetic acid

compounds that have the same molecular formula but different arrangements of atoms are called

isomer

a non competitive inhibitor

alters the three-dimensional structure of the enzyme

a formula that shows the arrangement of all bonds in a molecule is called an?

expanded structural formula

a functional group is a certain group of atoms that

reacts in a predictable way whenever present

collagen, a protein found in tendons and cartilage, would be classified as a ___ protein

structural

which is not a reducing sugar

sucrose

the reaction of hydrogen(h2) and propene using a platinum catalyst is called

additon

which statement is NOT true

all lipids contain fatty acids

compared to saturated fatty acids, unsaturated fatty acids have

shorter carbon chains

a fatty acid salt can act as a soap to remove grease because

the nonpolar tails of the salt dissolve in the greate and the polar salt ends dissolve in water

which of the following is NOT a lipoprotein that carries nonpolar lipids through the blood stream

glycerol

what is the nuclear symbol for a radioactive isotope of copper with a mass number of 60?

60/29 Cu

the product of from the alpha decay of 235/92 U is

231/90 Th

which of the following types of radiation has the highest energy?

y-rays

the damaging effects of radiation on the body are a result of

the formation of unstable ions or radicals

the process in which a nucleus spontaneously breaks down by emitting radiation is know as

radioactive decay

why is it important that radioisotopes used in diagnostic tests have short half-lives

this minimizes the harmful side effects of the radiation

the half-life of a radioisotope is

the time is takes for one-half of the sample to decay

iodine-123, which is used for diagnostic imaging in the thyroid, has half-life of 13 hours. If 50.0mg of I-123 were prepared at 8am on monday how many mg remain at 10am on the following day

12.5mg

when an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a great amount of engery. this nuclear process is called

fission

radium-226 decays by alpha emission to

radon-222

ribulose has the following structural formula, to what carbohydrate class does ribulose belong

ketopentose

a glycosidic bond between two monosacchardies can also be classified as an

ether bond

amylose is a form of starch which has

only a-1,4- links bond glucose units

aspartame and saccharin are two examples of

non carbohydrate sweeteners

under acid hydrolysis condition, starch is converted to

glucose

hypoglycemia is a condition in which

the glucose level in the blood is lower than normal

photosynthesis uses ___ as an energy source

sunlight

humans cannot digest celluslose because they

lack the necessary enzymes to digest b-glycosides

the iupace name for CH3-CH2-C=C-CH3 IS

2-pentyne

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