Biochemistry

Lipids perform which of the following functions?

Lipids perform which of the following functions?

Lipids perform which of the following functions?
 a. They store energy within fat cells.
  b. They serve as chemical messengers.
  c. They serve as membrane components.
  d. All of the above are functions of lipids.

sarah_verduzco1   41   1 Reply

Andecv

Secondary structure is associated with which of the following?

Secondary structure is associated with which of the following?

Secondary structure is associated with which of the following?
 a. the sequence of amino acids
  b. hydrogen bonding within the backbone
  c. hydrogen bonding between the side chains
  d. the interaction of protein subunits

Greenspotsock   41   1 Reply

hsprouse

Which of the following side chains are hydrophobic?

Which of the following side chains are hydrophobic?

Which of the following side chains are hydrophobic?
 a. acidic c. polar but neutral
  b. nonpolar d. none of these

sophie0209   41   1 Reply

Lettyyys

An abzyme is which of the following?

An abzyme is which of the following?

An abzyme is which of the following?
 a. an abnormal enzyme c. an antigen with catalytic ability
  b. an antibody with catalytic ability d. an immunogen

Griffinw42   41   1 Reply

P.liania

Which of the following will the cause the rate of enzyme activity to first increase and then level ...

Which of the following will the cause the rate of enzyme activity to first increase and then level ...

Which of the following will the cause the rate of enzyme activity to first increase and then level off?
 a. increasing the enzyme concentration
  b. increasing the substrate concentration
  c. increasing the temperature
  d. incr

bdiddydog   41   1 Reply

salmajed1

Which of the following ions can pass through the open channel of the acetylcholine receptor?

Which of the following ions can pass through the open channel of the acetylcholine receptor?

Which of the following ions can pass through the open channel of the acetylcholine receptor?
 a. K+ c. both a and b
  b. Na+ d. neither a nor b

rachelkimq   41   1 Reply

DR.BREEEEEE

Choline is converted to acetylcholine by which of the following reactions?

Choline is converted to acetylcholine by which of the following reactions?

Choline is converted to acetylcholine by which of the following reactions?
 a. condensation c. oxidation
  b. reduction d. substitution

Jovaini   41   2 Replies

Jovaini

Which of the following blocks the receptor sites for enkephalins?

Which of the following blocks the receptor sites for enkephalins?

Which of the following blocks the receptor sites for enkephalins?
 a. curare c. opiates
  b. morphine d. none of these

lacoya15   41   1 Reply

abcdef1244

Which of the following discovered the polymerase chain reaction (PCR)?

Which of the following discovered the polymerase chain reaction (PCR)?

Which of the following discovered the polymerase chain reaction (PCR)?
 a. C. Anfinsen c. K. Mullis
  b. B. Blumberg d. L. Pauling

rachelkimq   41   2 Replies

rachelkimq

Where on the tRNA does the amino acid bind?

Where on the tRNA does the amino acid bind?

Where on the tRNA does the amino acid bind?
 a. at the 3' end c. at the anticodon loop
  b. at the 5' end d. at a methionine residue

omrglss   41   2 Replies

omrglss

In eukaryotes which of the following is true?

In eukaryotes which of the following is true?

In eukaryotes which of the following is true?
 a. Transcription always occurs in the nucleus.
  b. Transcription never occurs in the nucleus.
  c. Translation always occurs in the nucleus.
  d. Translation never occurs in the nuc

Greenspotsock   41   1 Reply

physico

In glycerol 3-phosphate transport, found in muscle and nerve cells, how many ATP molecules are ...

In glycerol 3-phosphate transport, found in muscle and nerve cells, how many ATP molecules are ...

In glycerol 3-phosphate transport, found in muscle and nerve cells, how many ATP molecules are produced for each NADH + H+?
 a. 1 c. 3
  b. 2 d. 4

crownlessking   41   1 Reply

cotdiyea

CoQ when associated complex II of the electron and H+ transport chain, does which of the following? ...

CoQ when associated complex II of the electron and H+ transport chain, does which of the following? ...

CoQ when associated complex II of the electron and H+ transport chain, does which of the following?
 a. oxidizes FADH2 c. reduces FAD
  b. oxidizes NADH d. reduces NAD+

Pooh bear   41   2 Replies

Pooh bear

Complex I of the electron and H+ transport chain contains a number of clusters made up of a metal ...

Complex I of the electron and H+ transport chain contains a number of clusters made up of a metal ...

Complex I of the electron and H+ transport chain contains a number of clusters made up of a metal and a nonmetal. Which atoms are found in these clusters?
 a. iron and nitrogen c. magnesium and nitrogen
  b. iron and sulfur d. magnesium an

Griffinw42   41   1 Reply

John Ross

The light reactions of photosynthesis produce which of the following?

The light reactions of photosynthesis produce which of the following?

The light reactions of photosynthesis produce which of the following?
 a. glucose c. both a and b
  b. molecular oxygen d. neither a nor b

Revolver38   41   1 Reply

131231

Which of the following refers to the biosynthesis of compounds?

Which of the following refers to the biosynthesis of compounds?

Which of the following refers to the biosynthesis of compounds?
 a. anabolism c. metabolism
  b. catabolism d. none of these

sarah_verduzco1   41   1 Reply

Beehappy2

Deficiency of which of the following is associated with anemia?

Deficiency of which of the following is associated with anemia?

Deficiency of which of the following is associated with anemia?
 a. folic acid c. riboflavin
  b. nicotinic acid d. thiamine

hiufwsiuefbwe   41   1 Reply

Ddhakre

Which of the following is often called blood sugar?

Which of the following is often called blood sugar?

Which of the following is often called blood sugar?
 a. D-glucose c. maltose
  b. L-glucose d. sucrose

avaaaaa   41   1 Reply

poot10

Which of the following is produced by the complete hydrolysis of starch?

Which of the following is produced by the complete hydrolysis of starch?

Which of the following is produced by the complete hydrolysis of starch?
 a. glucose c. maltose
  b. lactose d. sucrose

hawkins1346   41   1 Reply

jianhong9991

The heat energy in a pound of body fat is 3500 Calories. If a woman's diet has an average caloric ...

The heat energy in a pound of body fat is 3500 Calories. If a woman's diet has an average caloric ...

The heat energy in a pound of body fat is 3500 Calories. If a woman's diet has an average caloric intake of 2500 Cal/day, by what percentage must this be reduced if she wishes to lose 10 pounds in 30 days? Assume that her level of physical activity r

MB0727   41   1 Reply

ksullivan042197

Of the following, which affect the quantity of nutrients required to maintain good health?

Of the following, which affect the quantity of nutrients required to maintain good health?

Of the following, which affect the quantity of nutrients required to maintain good health?
 a. age c. degree of physical activity
  b. body weight d. all of these

crownlessking   41   1 Reply

MSROGERS

Which of the following nutrients can be absorbed directly?

Which of the following nutrients can be absorbed directly?

Which of the following nutrients can be absorbed directly?
 a. fats c. starch
  b. proteins d. vitamins

motee   41   1 Reply

DR.BREEEEEE

Which of the following does not characterize adjuvants?

Which of the following does not characterize adjuvants?

Which of the following does not characterize adjuvants?
 a. chemical additive
  b. used only since the late 1990's
  c. can enhance vaccine and cancer therapies
  d. some formed from bacterial extracts
  e. All of these do c

Griffinw42   41   1 Reply

taylorhovland

Which of the following diseases have been eliminated by the use of vaccines?

Which of the following diseases have been eliminated by the use of vaccines?

Which of the following diseases have been eliminated by the use of vaccines?
 a. HIV
  b. heptatitis C
  c. tuberculosis
  d. malaria
  e. None of these have been eliminated, all of these are still active areas of research.

hessar3   41   1 Reply

jjdjd j

Antiviral drugs against HIV have been developed to do which of the following?

Antiviral drugs against HIV have been developed to do which of the following?

Antiviral drugs against HIV have been developed to do which of the following?
 a. destroy the virus before it enters a host cell
  b. inhibit the reverse transcriptase
  c. both a and b
  d. neither a nor b

tarapratt95   41   1 Reply

ksullivan042197

Mutation of the V(J)D genes in somatic cells results in which of the following?

Mutation of the V(J)D genes in somatic cells results in which of the following?

Mutation of the V(J)D genes in somatic cells results in which of the following?
 a. a failure of the immune system
  b. a decrease in the binding of an antigen to an antibody
  c. a small increase in the binding of an antigen to an an

redheadprincess   41   1 Reply

cstanish2

The enzyme GILT acts on which of the following types of antigens?

The enzyme GILT acts on which of the following types of antigens?

The enzyme GILT acts on which of the following types of antigens?
 a. nucleic acids c. both a and b
  b. polysaccharides d. neither a nor b

kescobar5   41   1 Reply

Harley0507

Which of the following have been associated with prolonged treatment with drugs such as Premarin or ...

Which of the following have been associated with prolonged treatment with drugs such as Premarin or ...

Which of the following have been associated with prolonged treatment with drugs such as Premarin or Provera?
 a. an increased risk of breast cancer c. both a and b
  b. an increased risk of uterine cancer d. neither a nor b

stalmoney   41   1 Reply

mrperretti

Which of the following gives the correct order of pressures?

Which of the following gives the correct order of pressures?

Which of the following gives the correct order of pressures?
 a. arterial > osmotic blood pressure > venous
  b. arterial > venous > osmotic blood pressure
  c. osmotic > blood pressure > arterial > venous
  d. venous > osmotic b

lacinb30   41   1 Reply

dylbt

Which of the following is not a macronutrient?

Which of the following is not a macronutrient?

Which of the following is not a macronutrient?
 A) carbohydrates
  B) fats
  C) proteins
  D) iron

sophie0209   41   1 Reply

mwarner93

Fluorouracil is an effective inhibitor of :

Fluorouracil is an effective inhibitor of :

Fluorouracil is an effective inhibitor of
 A) ribonucleotide reductase
  B) thymidylate synthase
  C) xanthine oxidase
  D) carbamoyl phosphate synthetase

yjuhen   41   1 Reply

mwarner93

Which of the following is not associated with pyrimidine synthesis?

Which of the following is not associated with pyrimidine synthesis?

Which of the following is not associated with pyrimidine synthesis?
 A) Synthesis of the base while ribose is attached.
  B) Stimulation of synthesis by purines.
  C) An orotic acid intermediate.
  D) Inhibition by pyrimidines

linasottile   41   1 Reply

shonsber

How many electrons are required for the reduction of one nitrogen molecule (N2 ) to two molecules of ...

How many electrons are required for the reduction of one nitrogen molecule (N2 ) to two molecules of ...

How many electrons are required for the reduction of one nitrogen molecule (N2 ) to two molecules of ammonia (NH3 ) and molecule of hydrogen (H2)?
 A) 2 electrons.
  B) 4 electrons.
  C) 6 electrons.
  D) 8 electrons.
 

Pooh bear   41   1 Reply

neontoast91

_____ is a photosynthetic pigment that differs from chlorophyll only in having two hydrogens atoms ...

_____ is a photosynthetic pigment that differs from chlorophyll only in having two hydrogens atoms ...

_____ is a photosynthetic pigment that differs from chlorophyll only in having two hydrogens atoms in place of one magnesium atom.
 A) Phycobiliprotein
  B) Bacteriorhodopsin
  C) Xanthophyll
  D) Pheophytin

bronzeclock   41   1 Reply

Lettyyys

Bacterial products of photosynthesis, other than oxygen and sugars, can include all of these, ...

Bacterial products of photosynthesis, other than oxygen and sugars, can include all of these, ...

Bacterial products of photosynthesis, other than oxygen and sugars, can include all of these, except:
 A) H2S
  B) NH3
  C) CH4
  D) Water
  E) All of these are products of photosynthetic bacteria.

nclariceb   41   1 Reply

car2065596

Which of the following are involved in the development of atherosclerosis?

Which of the following are involved in the development of atherosclerosis?

Which of the following are involved in the development of atherosclerosis?
 A) Excess LDL
  B) Inflammation
  C) Adhesion molecules
  D) Monocytes
  E) none of these
  F) all of these
  Indicate whether the st

Jnortontruvisio   41   1 Reply

mwarner93

Compared to -oxidation, fatty acid synthesis requires this extra vitamin or cofactor. :

Compared to -oxidation, fatty acid synthesis requires this extra vitamin or cofactor. :

Compared to -oxidation, fatty acid synthesis requires this extra vitamin or cofactor.
 A) Biotin
  B) Riboflavin
  C) Niacin
  D) Pantothenic acid
  E) All of these are used in both pathways.

98lindsey   41   1 Reply

cstanish2

The primary function of biotin in metabolism is:

The primary function of biotin in metabolism is:

The primary function of biotin in metabolism is:
 A) to allow for the addition of CO2 to other molecules.
  B) to inhibit acetyl-CoA carboxylase
  C) to inhibit carnitine palmitoyltransferase
  D) all of these
  E) none

ugai_kyut   41   1 Reply

physico

Of the processes listed below, which is not an important source of acetyl-CoA?

Of the processes listed below, which is not an important source of acetyl-CoA?

Of the processes listed below, which is not an important source of acetyl-CoA?
 A) pentose phosphate pathway
  B) amino acid degradation
  C) glycolysis
  D) fatty acid oxidation

jayfro   41   1 Reply

Lettyyys

In the Q cycle coenzyme Q takes part :

In the Q cycle coenzyme Q takes part :

In the Q cycle coenzyme Q takes part
 A) in the oxidized and reduced forms only.
  B) in the oxidized, reduced, and semiquinone forms.
  C) in the oxidized and semiquinone forms only.
  D) in the reduced and semiquinone forms

nclariceb   41   1 Reply

garroghuu