Biochemistry

Calculate the molarity of 100 ug/ml solutions of glucose, fructose and xylose?

Calculate the molarity of 100 ug/ml solutions of glucose, fructose and xylose?

Calculate the molarity of 100 ug/ml solutions of glucose, fructose and xylose? can someone help me with this? also what is the molecular weight of glucose, fructose and xylose?

rizzamella   981   1 Reply

rizzi

What occurs when sucrose is formed from glucose and fructose. Use diagrams if u want to?

What occurs when sucrose is formed from glucose and fructose. Use diagrams if u want to?

What occurs when sucrose is formed from glucose and fructose. Use diagrams if u want to

tokem97   1436   2 Replies

daTALLsmurf2

Why does organism S. epidermidis not react to fermentation of sugars such as glucose, fructose, and mannitol?

Why does organism S. epidermidis not react to fermentation of sugars such as glucose, fructose, and mannitol?

Can someone tell me why the organism S. epidermidis does not react to fermentation of sugars such as glucose, fructose, and mannitol? I am assuming that it is aerobic and requires the use of oxygen so the fermentation process is not possible, but is

rizza mae   660   1 Reply

riza

Can you help answer my questions about sucrose, glucose, and fructose?

Can you help answer my questions about sucrose, glucose, and fructose?

What happens when you add yeast sucrose in the absence of oxygen? What does it turn into? How do you turn sucrose into glucose and fructose? Is it as simple as adding water? And one more: can you make ethanol from adding yeast to fructose or does it

tola2001   377   1 Reply

lgraha13

How is cutting with the scissors different from cleaving with a restriction enzyme?

How is cutting with the scissors different from cleaving with a restriction enzyme?

2. How is cutting with the scissors different from cleaving with a restriction enzyme?



3. Enzymes that modify DNA, such as restriction enzymes, have been discovered and isolated from living cells. What function do you think they have in living cel

juliabreslin   3385   3 Replies

goodasitgets

Which of the following best describes the relationship between enzyme activity and temperature?

Which of the following best describes the relationship between enzyme activity and temperature?

A. Enzyme activity always increases with increasing temperature.
B. Higher temperatures typically in increase enzyme activity by lowering the activation energy of the reaction.
C. Higher temperatures increase enzyme activity by increasing the number

smhry   647   2 Replies

dataplease

What would be the restriction enzyme to cut out the FBN1 gene?

What would be the restriction enzyme to cut out the FBN1 gene?

What is the name of the restriction enzyme that would cut out just the FBN1 gene?

toernqvist   546   1 Reply

smhry

How does a cell vary the amount of enzyme present?

How does a cell vary the amount of enzyme present?

I know that cells don't synthesise many enzymes, so how do they control the amount of enzyme present?

zaq zaq   10977   2 Replies

riza

What chemical process is the enzyme laccase involved in?

What chemical process is the enzyme laccase involved in?

also, how does the enzyme fit into a biological process?
i know it is found in mushrooms and plants, but there is very little information about it on the web.

firetruckboom   507   1 Reply

oangi

What is the difference between prosthetic group and side chains on an enzyme?

What is the difference between prosthetic group and side chains on an enzyme?

What is the difference between prosthetic group and side chains on an enzyme?
Picturewise, they look the same to me.  Can someone preferably a biochemistry major explain?

Thanks.

_brooksd   433   2 Replies

FISH0818

What is the basis of a specific enzyme? Any good websites all about enzymes?

What is the basis of a specific enzyme? Any good websites all about enzymes?

What are the characteristics that make or allow enzymes to do their job?

Under what condition or changes do enzymes not function?

I have a lab on Thursday, and I need to find out how to test for a enzyme that won't function in its regular environ

ToddTek   510   1 Reply

toernqvist

Why is Katals used in Enzyme kinetics & what is the best way to use it?

Why is Katals used in Enzyme kinetics & what is the best way to use it?

I need to use µKata/L to find the volume of the enzyme Alakaline phosphatase in varies concetrations.

ToddTek   580   1 Reply

#8

What relationship exist between an enzyme and a catalyst?

What relationship exist between an enzyme and a catalyst?

What relationship exist between an enzyme and a catalyst?

lhendrix   2303   3 Replies

02bchallenged

How does the optical density of a solution containing BAPNA relate to enzyme activity?

How does the optical density of a solution containing BAPNA relate to enzyme activity?

How does the optical density of a solution containing BAPNA relate to enzyme activity?

riza   1320   1 Reply

toernqvist

What is the name given to the irreversible precipitation of an enzyme?

What is the name given to the irreversible precipitation of an enzyme?

I'm doing a lab on factors that influence enzyme activity. This is one of the discussion questions that I'm having trouble answering. Thanks!
Also, why might this condition occur?

daughterofzion   1038   1 Reply

!JRon@n

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   4174   2 Replies

juliem

How the enzyme was prepared and handled in the experiment?

How the enzyme was prepared and handled in the experiment?

In a paper on the catalytic activity of an enzyme, in which section would you find detailed information on how the enzyme was prepared and handled in the experiment?

 A.Abstract
 B.Materials and Method
 C.Discussion
 D.Introduction

dataplease   988   1 Reply

02bchallenged

The failure to observe an enzyme working at a temperature of 90C is most likely due to?

The failure to observe an enzyme working at a temperature of 90C is most likely due to?

The failure to observe an enzyme working at a temperature of 90C is most likely due to
A) competitive inhibition of the enzyme.
B) low kinetic energy of the reactants.
C) binding of substrate to the enzyme's active site.
D) denaturation of the enzyme

smialijan   410   2 Replies

toes2thnose

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

In a metabolic rxn sequence the 1st enzyme usually functions as a regulatory enzyme. What is the advantage?

In a metabolic rxn sequence the 1st enzyme usually functions as a regulatory enzyme. What is the advantage?

In a metabolic reaction sequence, the first enzyme usually functions as a regulatory enzyme. What is the advantage of regulating the activity of the first enzyme rather than the activity of later enzymes?

_biology   1021   1 Reply

dataplease

What would be the significance of an experiment showing an enzyme's involvement in apoptosis?

What would be the significance of an experiment showing an enzyme's involvement in apoptosis?

I am involved in such an experiment, and need to put together a "future directions and significance" paragraph.  I have ideas about what to say, but I'd like to either confirm them or get some more ideas, so I ask: why is discovering the role an enzy

riyaz   470   1 Reply

datasian

How does the enzyme pepsin work in our stomach?

How does the enzyme pepsin work in our stomach?

I need details on how:
Factors that may affect the rate of reaction in the stomach.
How the enzyme pepsin specifically work in our stomach to break down food molecules to proteins.

Thanks

datasian   1063   1 Reply

zzwChris

What is the effect of substrate concentration of an enzyme on the pH of the solution?

What is the effect of substrate concentration of an enzyme on the pH of the solution?

The enzyme is lipase and the substrate is the lipids in whole milk. Will increasing the substrate concentration increase or decrease pH. Explain.

datasian   572   1 Reply

Fire_Fly

What kind of enzyme would be needed to eliminate the necessity for bidirectional replication at the replica?

What kind of enzyme would be needed to eliminate the necessity for bidirectional replication at the replica?

What kind of enzyme would be needed to eliminate the necessity for bidirectional replication at the replication fork?

smilan   636   1 Reply

#8

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   612   2 Replies

$abood$

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   578   2 Replies

smilan

What is the effect of enzyme concentration on enzyme activity?

What is the effect of enzyme concentration on enzyme activity?

Your Open Question: what is the effect of enzyme concentration on enzyme activity?

Explain how enzyme activity changes as enzyme concentration decreases, and discuss why this occurs (on a molecular level)

oapplesauce   1772   1 Reply

dave

What happens when a suitable substrate binds to an enzyme?

What happens when a suitable substrate binds to an enzyme?

1. Substrate binding with the enzyme results
in ATP hydrolysis.
2. The active site amino acids bond with the
substrate.
3. Substrate binds to regulatory site of the
enzyme.
4. Substrate binds with cofactors first and
then to the enzyme.
5. Enzyme imm

riyaz   2542   2 Replies

06Ralph

What happens if a cell produces too much of a particular enzyme?

What happens if a cell produces too much of a particular enzyme?

Can it shut down the entire pathway, and how does this work if the enzyme is just a catalyst?  Does it matter how much of an enzyme the cell produces?

toddandrus1   481   1 Reply

fire_crystal

How does enzyme function in the liver affect a person with cirrhosis?

How does enzyme function in the liver affect a person with cirrhosis?

The function of the liver is to break down fats and build certain proteins.  Cirrhosis of the liver is a disease which causes the liver to become thickened and ?rubbery.?  Hypothesize how enzyme function in the liver would be affected in a person wit

toernqvist   663   1 Reply

datboililp

What restriction enzyme would determine insertion of a gene?

What restriction enzyme would determine insertion of a gene?

What factors would help determine the insertion of a gene into a vector? I'm trying to find which enzyme is better for inserting a recA gene into a pBC KS+  vector? ClaI or EcorI?

toernqvist   494   1 Reply

smhry

How would you know that only 1 conformation will allow maximum activity in enzyme?

How would you know that only 1 conformation will allow maximum activity in enzyme?

I know that heat, pH, concentration of enzyme and substrate play an important role in enzyme conformation and ultimately in the activity of the enzyme. But is there any other factors that also contribute to the maximum activity of the enzyme? How do

dataplease   437   1 Reply

fire_crystal

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   620   1 Reply

ToddTek

How many enzyme types does the human body have?

How many enzyme types does the human body have?

I still have not found the exactly number of enzyme types we have in our bodies. It seems that I will have to count by myself. Can you help me?

oapplesauce   870   1 Reply

dataplease

How does enzyme activity change as substrate concentration decreases?

How does enzyme activity change as substrate concentration decreases?

Explain on a molecular level.

I dont know if im right: a decreases in substrate conc -> decrease in enzyme activity due to decreased collisions??

Thanks!

zzwChris   2881   1 Reply

fire_crystal

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   5063   1 Reply

_brooksd

What role might a cofactor play in enzyme regulation?

What role might a cofactor play in enzyme regulation?

I know what a cofactor is, so maybe I should be asking what is enzyme regulation?

ToddTek   452   1 Reply

02bchallenged

What enzyme is used in a light independent reaction?

What enzyme is used in a light independent reaction?

I need to know what enzyme is used in a light independent reaction. thanks!

toddandrus1   403   1 Reply

dave

What are other ways at which an enzyme catalasis can be denatured?

What are other ways at which an enzyme catalasis can be denatured?

i know that pH levels and temperature play important roles but isnt there other ways an enzyme can be denatured, besides pH and temp. changes?

zanyu   551   2 Replies

lhendrix

How do temperature and pH affect the activity of this enzyme?

How do temperature and pH affect the activity of this enzyme?

Include a discussion of the relationship between the structure and the function of this enzyme, as well as a discussion of how structure and function and enzymes are affected by temperature and pH.

riyaz   1955   3 Replies

lhgutierrez