# Biology

I am given the structual formula for lactose
howere i have to write out the equation for the hydrolosis of lactose

is the following what is required

C12H22O11 +H2O>>> C6H12O6 +C6H12O6

all the numbers are subscript, would appreciate if someone would guide me

Since this is not my area of expertise, I searched Google under the key words "hydrolysis lactose" to get this source:

http://www.indiana.edu/~ensiweb/lessons/tp.milk3.html

I hope this helps. Thanks for asking.

Bex,

From my understanding of the question, you have to draw out the equation using structural formula i.e. draw a diagram rather than write letters and numbers. If you look at P29 of Block 9 it shows you the structural formula but for 2 glucose molecules rather than 1 galactose and 1 glucose...and it's in reverse. Just redraw that diagram using the correct molecules and the other way around. At least that's what I've done :-)

Iam looking at that diagram from left to right

do i draw the 4th and then the 3rd with the h20 in the middle

Hi again,

First of all I should have said look at Fig 3.11. The 2 molecules (both glucose)on the right hand side of the arrow are joined by a glycosidic link, which is the "o" highlighted in blue. This is similar to the diagram in the question except one of the molecules is glucose and the other is galactose. What you need to is... draw the structure as it is in the question, then write "+ H20" next to it, then a arrow. You then draw a similar structure to the one that that's on the left hand side of the arrow in Fig 3.11 (the one with the OHH ringed with a dashed line) except you need to make sure that one molecule is glucose and one is galactose.(The one in the book has 2 glucose, so just swap one of them with a galactose molecule)

1. 👍 0
2. 👎 0
3. 👁 143

## Similar Questions

1. ### Biology

Could anyone suggest a web site where i could get the structual formulae and the equation for the hydrolosis of lactose thanks

asked by Bex on March 22, 2007
2. ### Biology

Your research team suspects that lactose intolerance is a recessive trait. Which of the following observations would contradict your theory? a) Two lactose intolerant parents always have children who are lactose intolerant b)

asked by Bella on January 17, 2011
3. ### Chemistry

Is this the right way to write the structual and the chemical formula for propane? P P P P P C C C C P P P P P Pretend that there are bonds in between each of the letters. Chemical Formula: C3P8. Thanks for checking this out.

asked by Hallie on May 2, 2009
4. ### Biology

could you explain the meaning of the phrase glycoside c-1 to c-4 linkage this is in regard to the structural formula of lactose many thanks http://en.wikipedia.org/wiki/Lactose thanks that was a real great help now i understand

asked by Bex on March 20, 2007
5. ### Chemistry

To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At

6. ### Science

To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At

7. ### Chemistry

To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At

8. ### science

What is the equation of the hydrolysis of lactose? http://www.rpi.edu/dept/chem-eng/Biotech-Environ/IMMOB/lactose.html

asked by laura on April 8, 2007
9. ### biochemistry

Based on the mass of lactose that you isolate from 1 ml of skim milk, calculate the percent composition of lactose in skim milk. (If you found protein in the “purified lactose” sample or lactose in your “purified casein”

asked by Anonymous on September 24, 2015
10. ### Chemistry

Using a structural formula wrute out the equation for the hydrolysis of lactose - please help! see my posting on April 2, 2007 at 5:12am

asked by Desmond on April 3, 2007

More Similar Questions