Biochemistry

Use of bilirubin measurements in clinical biochemistry?

Use of bilirubin measurements in clinical biochemistry?

Use of bilirubin measurements in clinical biochemistry?

!JRon@n   272   1 Reply

ogre

Whats the interaction between an enzyme inducer and a substrate?

Whats the interaction between an enzyme inducer and a substrate?

I want to know because, if i take a drug that is an enzyme inducer (and needs that metabolism to be transformed into the active drug), lets say prednisone (CYP3A4 inducer); and take an enzyme substrate, i think the conversion isn't fully effective, b

#8   335   2 Replies

06Ralph

How does different environmental conditions affect enzyme activity?

How does different environmental conditions affect enzyme activity?

In paticular, the enzyme catalase.
How does the change in temperature and pH have on the fuction of enzyme? (specifically speed of reaction) Will it affect all enzymes the same? or it depends on the enzyme? thanks =)

#8   4172   2 Replies

juliem

Enzymes!!!?

Enzymes!!!?

We just did a lab in my Bio class with the enzyme tyrosinase. I wasn't sure how to answer this question on my lab report...

Many drugs and poisons react with enzymes and make them unable to control chemical reactions. For example, cyanide reacts wit

#8   226   2 Replies

Michael0126

What is the difference between an enzyme and a catalyst?

What is the difference between an enzyme and a catalyst?

somebody please explain this: All enzymes are biological catalysts but not all biological catalysts are enzymes; i.e., ribozymes (special RNA molecules that catalyze reactions).

$abood$   502   3 Replies

nrcrafton

How can I raise my Biochemistry grade

How can I raise my Biochemistry grade

Hi. I didn't get a really good grade on my Biochem assessment and it brought my grade to an 80. Grades close on the 9th and I don't know what to do to raise it! Please give me any advise. Anything would be helpful. Thanks!

-An an

(Anonymous)   323   2 Replies

be beautiful

What is the difference between leading strands and lagging strands ??

What is the difference between leading strands and lagging strands ??

Also if possible .. how is the DNA Replication proofread and edited ??

Tell about RNA editing and splicing and the final product of translation ??

(catalina)   574   1 Reply

miche37

how are monoclonal antibodies produced when you don't have the antigen?

how are monoclonal antibodies produced when you don't have the antigen?

if you know the structure of the antibody you need (the amino acide sequence) you could then convert that into its complementary DNA sequence and produce a recombinant DNA molecule that codes for your antibody and then simply inserted into a cell lin

(catalina)   349   2 Replies

Mieka88

If an enzyme has either a loosely or tightly bound cofactors, what kind difference does it make and what kind?

If an enzyme has either a loosely or tightly bound cofactors, what kind difference does it make and what kind?

If an enzyme has either a loosely or tightly bound cofactors, what difference does it make and what kind of reaction will occur?   Any biologist or biochemistrist that can help me out?

Thanks!

0628889   616   1 Reply

ToddTek

What is an enzyme which can synthesise DNA with a base sequence complementary to messenger RNA?

What is an enzyme which can synthesise DNA with a base sequence complementary to messenger RNA?

Also, which cells synthesise this enzyme?

0628889   610   2 Replies

$abood$

How to calculate the initial rate of enzyme reaction from a graph?

How to calculate the initial rate of enzyme reaction from a graph?

After I plotted the graph,the graph is a curve on the 1st quadrant which cuts neither the x or y axis.In this case,what are the steps and formulas to calculate the initial rate of the enzyme reaction?Thanks.

06Ralph   5061   1 Reply

_brooksd

How does the enzyme catalyze the matters?

How does the enzyme catalyze the matters?

I wanna know how the enzyme catalyzes the matters like protein or some carbohydrate(for example,starch) and so on?
I mean how they react?

06Ralph   575   2 Replies

smilan

Calculate proton motive force

Calculate proton motive force

1) calculate the proton motive force across the inner mitochondrial membrane @ 25 degrees Celsius when the electrical difference is -0.18 V (inside negative), the pH outside is 6.7 and the pH inside is 7.5

Proton motive force = -2.303RTdel

09mohamf   7759   2 Replies

bio_man

Why does heating a solution containing an enzyme and its substrate often slow the formation of products?

Why does heating a solution containing an enzyme and its substrate often slow the formation of products?

A) All chemical reactions slow down upon heating.
B) No enzyme can function above room temperature.
C) Heating a solution has no affect on the rate at which the products of a chemical reaction are formed.
D) The active site of the enzyme can change s

1108   621   2 Replies

Fire_Fly

How do our bodies produce the enzyme alcohol dehydrogenase?

How do our bodies produce the enzyme alcohol dehydrogenase?

Are certain amino acids a precursor to this enzyme? If not, please explain to me to the best of your ability how our bodies produce/synthesize alc dehydrogenase.
Is it possible to adjust one's diet to ensure the liver is producing enzymes to the best

11askaggs   360   1 Reply

dave

Which of the following correctly gives the correct coefficients for the reaction below? N2H4 + H2O2 N2 + H2O

Which of the following correctly gives the correct coefficients for the reaction below? N2H4 + H2O2 N2 + H2O

[html]Which of the following correctly gives the correct coefficients for the reaction below?

 N2H4 + H2O2 → N2 + H2

123456789ABCD   78   1 Reply

faulkeeryb

List and explain ways in which the major groups of fishes are different from each other....

List and explain ways in which the major groups of fishes are different from each other....

List and explain ways in which the major groups of fishes are different from each other. Provide examples in categories such as: skeletal material, means of buoyancy, and how their fins are constructed. Which of these groups gave rise to lineages tha

123daisy   279   1 Reply

bio_man

A product of -6/-2 = ________.

A product of -6/-2 = ________.

A product of -6/-2 = ________.

123isme   31   1 Reply

econ2200

Most of the carboxylic acid in an aqueous solution is ionized.

Most of the carboxylic acid in an aqueous solution is ionized.

Most of the carboxylic acid in an aqueous solution is ionized.

▸ true

▸ false

123isme   79   1 Reply

deathwing

Cooperative sites for haemoglobin/myoglobin?

Cooperative sites for haemoglobin/myoglobin?

Hemoglobin differs from myoglobin in that it has four binding sites for oxygen and is cooperative. Are all molecules with multiple binding sites cooperative?

14092190   905   1 Reply

duddy

The shape of a molecule with a central atom that has two bonded atoms and one lone pair is ________.

The shape of a molecule with a central atom that has two bonded atoms and one lone pair is ________.

The shape of a molecule with a central atom that has two bonded atoms and one lone pair is ________.

▸ bent (109°)

▸ linear

▸ trigonal pyramidal

▸ bent (120°)

▸ trigonal planar

19sspeck   60   1 Reply

asd454512

What is the molar mass of sodium phosphate, Na3PO4?

What is the molar mass of sodium phosphate, Na3PO4?

What is the molar mass of sodium phosphate, Na3PO4?

▸ 354.0 g/mole

▸ 163.9 g/mole

▸ 69.96 g/mole

▸ 118.0 g/mole

▸ 226.1 g/mole

19sspeck   74   1 Reply

georgetine2

Which sentence best describes the process of competitive inhibition?

Which sentence best describes the process of competitive inhibition?

[html]Which sentence best describes the process of competitive inhibition?


▸

3099592   56   1 Reply

ellaraienm

The water content in the human body is approximately:

The water content in the human body is approximately:

The water content in the human body is approximately:
A) 90%.
B) 80%.
C) 70%.
D) 60%.
E) 50%.

3493954   92   1 Reply

BurgaskO

Nearly all proteins contain: (Multiple Choice)

Nearly all proteins contain: (Multiple Choice)

Nearly all proteins contain:
A) cobalt.
B) phosphorus.
C) selenium.
D) sulfur.
E) none of the above.

3493954   135   1 Reply

BurgaskO

Which of the following is NOT classed as a lipid?

Which of the following is NOT classed as a lipid?

Which of the following is NOT classed as a lipid?
A) Cholesterol
B) Palmitic acid
C) Glycerol
D) Phosphatidyl serine
E) Triacylglycerol

3493954   77   1 Reply

Nyntti

Oxidation-reduction reactions, which are the basis of many biochemical reactions and pathways, ...

Oxidation-reduction reactions, which are the basis of many biochemical reactions and pathways, ...

Oxidation-reduction reactions, which are the basis of many biochemical reactions and pathways, cannot take place in the absence of oxygen.
T/F?

3493954   146   1 Reply

Nyntti

Many biochemical reactions that form biopolymers from monomeric units involve the removal of ...

Many biochemical reactions that form biopolymers from monomeric units involve the removal of ...

Many biochemical reactions that form biopolymers from monomeric units involve the removal of water.
T/F?

3493954   86   1 Reply

BurgaskO

Genomics is concerned with the entire ________, while ________ is focused on identifying all of the ...

Genomics is concerned with the entire ________, while ________ is focused on identifying all of the ...

Genomics is concerned with the entire ________, while ________ is focused on identifying all of the proteins of a cell.

3493954   84   1 Reply

Nyntti

Each of the following is a noncovalent interaction EXCEPT:

Each of the following is a noncovalent interaction EXCEPT:

Each of the following is a noncovalent interaction EXCEPT:
A) a hydrogen bond.
B) a carbon-hydrogen bond.
C) the interaction between an amino and a carboxylate group.
D) a van der Waals interaction.
E) an interaction between

3493954   91   1 Reply

BurgaskO

The most important noncovalent interaction in biochemistry is the ________ bond.

The most important noncovalent interaction in biochemistry is the ________ bond.

The most important noncovalent interaction in biochemistry is the ________ bond.

3493954   94   1 Reply

BurgaskO

Which of the following in biological compounds are sufficiently electronegative to serve as strong ...

Which of the following in biological compounds are sufficiently electronegative to serve as strong ...

Which of the following in biological compounds are sufficiently electronegative to serve as strong donors in a hydrogen bond?
A) Hydrogen and oxygen
B) Oxygen and nitrogen
C) Nitrogen and hydrogen
D) Hydrogen and carbon
E) Ni

3493954   99   1 Reply

BurgaskO

Water is both a hydrogen bond donor and acceptor.T/F?

Water is both a hydrogen bond donor and acceptor.T/F?

Water is both a hydrogen bond donor and acceptor.
T/F?

3493954   198   1 Reply

BurgaskO

Ionic compounds can be readily dissolved in water because the high dielectric constant of water ...

Ionic compounds can be readily dissolved in water because the high dielectric constant of water ...

Ionic compounds can be readily dissolved in water because the high dielectric constant of water screens and decreases the ________ force between the oppositely charged ions.

3493954   127   1 Reply

BurgaskO

Glycine cannot serve as a buffer because it has two ionizable groups.T/F?

Glycine cannot serve as a buffer because it has two ionizable groups.T/F?

Glycine cannot serve as a buffer because it has two ionizable groups.
T/F?

3493954   150   1 Reply

Nyntti

The average charge on an amino acid below its pI will be positive.T/F?

The average charge on an amino acid below its pI will be positive.T/F?

The average charge on an amino acid below its pI will be positive.
T/F?

3493954   71   1 Reply

BurgaskO

Calculate the pH of a 0.1 M phosphate buffer (pKa = 6.86) that contains equal amounts of acid and ...

Calculate the pH of a 0.1 M phosphate buffer (pKa = 6.86) that contains equal amounts of acid and ...

Calculate the pH of a 0.1 M phosphate buffer (pKa = 6.86) that contains equal amounts of acid and conjugate base.

3493954   96   1 Reply

BurgaskO

The pKa of each amino acid residue in a protein will not be influenced by the adjacent residue.T/F?

The pKa of each amino acid residue in a protein will not be influenced by the adjacent residue.T/F?

The pKa of each amino acid residue in a protein will not be influenced by the adjacent residue.
T/F?

3493954   116   1 Reply

BurgaskO

If hydroxide is added to an amino acid it will become increasingly ________ charged.

If hydroxide is added to an amino acid it will become increasingly ________ charged.

If hydroxide is added to an amino acid it will become increasingly ________ charged.

3493954   86   1 Reply

Nyntti

Calculate the pH of a weak acid that is 0.2% ionized in a 0.2 M solution.

Calculate the pH of a weak acid that is 0.2% ionized in a 0.2 M solution.

Calculate the pH of a weak acid that is 0.2% ionized in a 0.2 M solution.

3493954   97   1 Reply

BurgaskO