Biochemistry

Humans do not produce energy by photosynthesis. Why, then, is this process critical to our survival?

Humans do not produce energy by photosynthesis. Why, then, is this process critical to our survival?

Humans do not produce energy by photosynthesis. Why, then, is this process critical to our survival?

tulao68   62   2 Replies

tulao68

Humans have approximately how many chemokines?

Humans have approximately how many chemokines?

Humans have approximately how many chemokines?
 a. 10 c. 40
  b. 20 d. 80

adamsnaya   27   1 Reply

mousesareplural

Humans produce these as the major nitrogen waste products.

Humans produce these as the major nitrogen waste products.

Humans produce these as the major nitrogen waste products.
 a. Ammonia.
  b. Urea.
  c. Uric Acid.
  d. Both Urea and Uric Acid.
  e. All three of these are used to dispose of nitrogen wastes by humans.

adamsnaya   47   1 Reply

ravindergill185

Humans produce these as the major nitrogen waste products. :

Humans produce these as the major nitrogen waste products. :

Humans produce these as the major nitrogen waste products.
 A) Ammonia.
  B) Urea.
  C) Uric Acid.
  D) Both Urea and Uric Acid.
  E) All three of these are used to dispose of nitrogen wastes by humans.

shoppa   48   1 Reply

dylbt

Hunger and satiety centers are located in which area of the brain?

Hunger and satiety centers are located in which area of the brain?

Hunger and satiety centers are located in which area of the brain?
A) hypothalamus
B) thalamus
C) basal nuclei
D) corpus callosum
E) cerebellum

SalwanJ   185   3 Replies

venusky

Huntington disease is caused byA)pyrimidine dimers.D)all of the above.B)trinucleotide ...

Huntington disease is caused byA)pyrimidine dimers.D)all of the above.B)trinucleotide ...

Huntington disease is caused by
A)   pyrimidine dimers.   D)   all of the above.
B)   trinucleotide expansion.   E)   none of the above.
C)   suppressor mutants.

tulao68   96   2 Replies

tulao68

Huntington's disease is one of the few dominant genetic disorders that causes exaggerated involuntar

Huntington's disease is one of the few dominant genetic disorders that causes exaggerated involuntar

Huntington's disease is one of the few dominant genetic disorders that causes exaggerated involuntary jerking motions and progressive dementia. What area of the brain is primarily responsible for these symptoms?
A) basal nuclei
B) chor

SalwanJ   146   3 Replies

venusky

HW HELP ! How do diuretics help reduce excess fluis in peritoneal cavity?

HW HELP ! How do diuretics help reduce excess fluis in peritoneal cavity?

A woman has alcoholic hepatitis, she is put on diuretics. How will diuretics reduce the excess fluid inher peritoneal cavity? Name and describe the mechanisms of action of three types of diuretics. Why is her diet salt restricted?

tonyeye   359   5 Replies

Finalplay

Hyaluronic acid is which of the following?

Hyaluronic acid is which of the following?

Hyaluronic acid is which of the following?
 a. an oligosaccharide
  b. a polymer of D-glucuronic acid only
  c. a polymer of N-acetyl-D-glucosamine only
  d. a polymer of both D-glucuronic acid and N-acetyl-D-glucosamine

jayfro   40   1 Reply

shonsber

Hybrid proteins or fusion proteins are produced by:

Hybrid proteins or fusion proteins are produced by:

Hybrid proteins or fusion proteins are produced by:
 
  a. incubation of two proteins with a protease.
  b. expression of genes coding for multiple proteins.
  c. translation of mRNAs without removing exons.
  d. translation

Jnortontruvisio   64   1 Reply

gidgetlynch@gma

Hybridization

Hybridization

Determine the hybridization of atomic orbital for the carbon and oxygen atoms in the following compound (use the given table and numbering for the specification of atoms). What are the bond angles between C1-C2-C3 and C3-C4-05? What kinds of orbitals

Anonymous   111   1 Reply

Anonymous

Hybridization in PCR involves which of the following?

Hybridization in PCR involves which of the following?

Hybridization in PCR involves which of the following?
 a. covalent bonds c. ionic bonds
  b. dipole-dipole interactions d. hydrogen bonds

lacinb30   23   1 Reply

MSROGERS

Hybridomas, which produce monoclonal antibodies, are made by fusing cells of the immune system with ...

Hybridomas, which produce monoclonal antibodies, are made by fusing cells of the immune system with ...

Hybridomas, which produce monoclonal antibodies, are made by fusing cells of the immune system with
 A) cancerous cells.
  B) viruses.
  C) bacterial cells.
  D) ribosomes.

Larrhea   50   1 Reply

MSROGERS

Hybridomas, which produce monoclonal antibodies, are made by fusing cells of the immune system with ...

Hybridomas, which produce monoclonal antibodies, are made by fusing cells of the immune system with ...

Hybridomas, which produce monoclonal antibodies, are made by fusing cells of the immune system with
 a. cancerous cells.
  b. viruses.
  c. bacterial cells.
  d. ribosomes.

mahi   41   1 Reply

salmajed1

Hydrocephalus is a _____ disorder. (Multiple Choice)

Hydrocephalus is a _____ disorder. (Multiple Choice)

Hydrocephalus is a _____ disorder.
 
  A) congenital
  B) heterozygous
  C) homozygous
  D) sex-linked

stroman54   65   1 Reply

tgreen77

Hydrochloric acid (HCL) in the stomach..

Hydrochloric acid (HCL) in the stomach..

Hello to all:)

Cells in the wall of the mamalian stomach secrete HCL at a concentration of 0.1M.

The secreted -protons, which are derived from the intracellular hydration of CO2 by carbonic anhydrase, are pumped out by an (H

Twinkle K   1177   3 Replies

Twinkle K

Hydrochloric acid aids protein digestion (True or false?).

Hydrochloric acid aids protein digestion (True or false?).

Hydrochloric acid aids protein digestion.
 
  Indicate whether the statement is true or false.

Nalu   52   1 Reply

kwengert

Hydrochloric acid is a: (Multiple Choice)

Hydrochloric acid is a: (Multiple Choice)

Hydrochloric acid is a:
A) hydrogen ion donor.
B) hydrogen ion acceptor.
C) hydroxide ion donor.
D) proton acceptor.

Cali Fornia   185   2 Replies

Cali Fornia

Hydrochloric acid secretion is under nerve and hormonal control. (True or false?)

Hydrochloric acid secretion is under nerve and hormonal control. (True or false?)

Hydrochloric acid secretion is under nerve and hormonal control.
 
  Indicate whether the statement is true or false.

thisisstupidash   41   1 Reply

suarezs1

Hydrocyanic acid, HCN, is a weak acid. Which of the following is the correct expression for the Ka ...

Hydrocyanic acid, HCN, is a weak acid. Which of the following is the correct expression for the Ka ...

Hydrocyanic acid, HCN, is a weak acid. Which of the following is the correct expression for the Ka of hydrocyanic acid?
 a. H3O+HCN/CN c. HCN/ H3O+CN
  b. H3O+CN/HCN d. HCNCN/ H3O+

ksultz   77   2 Replies

ksultz

Hydrocyanic acid, HCN, is a weaker acid than ammonium ion, NH4+. When hydrocyanic acid reacts with ...

Hydrocyanic acid, HCN, is a weaker acid than ammonium ion, NH4+. When hydrocyanic acid reacts with ...

Hydrocyanic acid, HCN, is a weaker acid than ammonium ion, NH4+. When hydrocyanic acid reacts with ammonia, NH3, what species are present in the solution in the largest amount?
 a. hydrocyanic acid, HCN, and ammonia, NH3
  b. hydrocyanic a

bronzeclock   85   2 Replies

bronzeclock

Hydrofluoric acid, HF, is a weak acid. Which of the following is the correct expression for the Ka ...

Hydrofluoric acid, HF, is a weak acid. Which of the following is the correct expression for the Ka ...

Hydrofluoric acid, HF, is a weak acid. Which of the following is the correct expression for the Ka of hydrofluoric acid?
 a. H3O+HF/F c. H3O+F/HF
  b. HF/ H3O+F d. HFF/ H3O+

kescobar5   75   1 Reply

Jiminie

Hydrogen bonding between bases is responsible for the double helix structure of DNA.Pick whether ...

Hydrogen bonding between bases is responsible for the double helix structure of DNA.Pick whether ...

Hydrogen bonding between bases is responsible for the double helix structure of DNA.
Pick whether it's true or false...

Neves   97   2 Replies

Neves

Hydrogen bonding plays an important role in which of the following?

Hydrogen bonding plays an important role in which of the following?

Hydrogen bonding plays an important role in which of the following?
 a. the boiling point of water c. both a and b
  b. the expansion of water upon freezing d. neither a nor b

hessar3   60   1 Reply

Godzilla159

Hydrogen bonds (Multiple Choice)

Hydrogen bonds (Multiple Choice)

Hydrogen bonds
 a. play an important role in the solvent properties of water
  b. are not involved in protein structure
  c. play a role in the properties of DNA, but not of RNA
  d. give water a lower boiling point than expected

yjuhen   67   1 Reply

Keeze

Hydrogen bonds : (Multiple Choice)

Hydrogen bonds : (Multiple Choice)

Hydrogen bonds
 A) play an important role in the solvent properties of water
  B) are not involved in protein structure
  C) play a role in the properties of DNA, but not of RNA
  D) give water a lower boiling point than expec

bubblegum123   39   1 Reply

ericpie13

Hydrogen bonds are most important in this type of structure in proteins:

Hydrogen bonds are most important in this type of structure in proteins:

Hydrogen bonds are most important in this type of structure in proteins:
 A) primary structure
  B) secondary structure
  C) tertiary structure
  D) quaternary structure
  E) All of these

sarah_verduzco1   73   1 Reply

Nickluna@msn.co

Hydrogen bonds can form between:

Hydrogen bonds can form between:

Hydrogen bonds can form between:
 a. hydrogen atom covalently bonded to an electronegative atom and a second electronegative atom
  b. a nitrogen atom covalently bonded to an electronegative atom and a nitrogen atom on another molecule

ahh_risa   79   1 Reply

Nickluna@msn.co

Hydrogen bonds can only form when the hydrogen atom is involved in a polar bond.

Hydrogen bonds can only form when the hydrogen atom is involved in a polar bond.

Hydrogen bonds can only form when the hydrogen atom is involved in a polar bond.
 a. True
  b. False

Griffinw42   79   2 Replies

Griffinw42

Hydrogen bonds can only form when the hydrogen atom is involved in a polar bond. :

Hydrogen bonds can only form when the hydrogen atom is involved in a polar bond. :

Hydrogen bonds can only form when the hydrogen atom is involved in a polar bond.
 A) True
  B) False

kescobar5   79   1 Reply

ashleyjohnson81

Hydrogen bonds explain which of the following properties of water?

Hydrogen bonds explain which of the following properties of water?

Hydrogen bonds explain which of the following properties of water?
 A) Water is a great solvent for all ionic and polar molecules.
  B) Water has high melting and boiling points for its small size.
  C) Ice expands when frozen.

omrglss   48   1 Reply

mousesareplural

Hydrogen bonds explain which of the following properties of water?

Hydrogen bonds explain which of the following properties of water?

Hydrogen bonds explain which of the following properties of water?
 a. Water is a great solvent for all ionic and polar molecules.
  b. Water has high melting and boiling points for its small size.
  c. Ice expands when frozen.
 

Greenspotsock   52   1 Reply

jjdjd j

Hydrogen bonds in ice are all EXCEPT:

Hydrogen bonds in ice are all EXCEPT:

Hydrogen bonds in ice are all EXCEPT:
 
  a. directional.
  b. straight.
  c. weak.
  d. responsible for the lower density of ice over liquid water.
  e. holding water molecules in ice apart.

nclariceb   27   1 Reply

mickeymouse1

Hydrogen bonds share features of both covalent and noncovalent bonds.T/F?

Hydrogen bonds share features of both covalent and noncovalent bonds.T/F?

Hydrogen bonds share features of both covalent and noncovalent bonds.
T/F?

alpsi   61   2 Replies

alpsi

Hydrogen ions cannot permeate the blood-brain barrier.

Hydrogen ions cannot permeate the blood-brain barrier.

Hydrogen ions cannot permeate the blood-brain barrier.
A) True
B) False

SalwanJ   214   3 Replies

venusky

Hydrogen Peroxide - Medicinal value?

Hydrogen Peroxide - Medicinal value?

https://en.wikipedia.org/wiki/Peroxide

Do you feel Hydrogen Peroxide have medicinal value to Human Beings?

This can also including Hydrogen Peroxide mixture with other Chemical compositions.

I.e. Can be used as Medici

prashantakerkar   453   5 Replies

bio_man

Hydrogen sulfide (H2S) is a covalent compound.Pick whether it's true or false...

Hydrogen sulfide (H2S) is a covalent compound.Pick whether it's true or false...

Hydrogen sulfide (H2S) is a covalent compound.
Pick whether it's true or false...

Neves   66   2 Replies

Neves

Hydrogenated fat? easy 11 points?

Hydrogenated fat? easy 11 points?

Are they saturated fats, polyunsaturated fats or monounsaturated fats/
Can someone also give a reason for this please?

daughterofzion   319   1 Reply

miew87

Hydrogenation of an alkene is a reduction reaction.Pick whether it's true or false...

Hydrogenation of an alkene is a reduction reaction.Pick whether it's true or false...

Hydrogenation of an alkene is a reduction reaction.

Pick whether it's true or false...

Neves   84   2 Replies

Neves

Hydrogenation of an alkene is an example of what kind of reaction?

Hydrogenation of an alkene is an example of what kind of reaction?

Hydrogenation of an alkene is an example of what kind of reaction?
A) Addition
B) Oxidation
C) Hydrolysis
D) Hydration

Neves   92   2 Replies

Neves