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September 15, 2014

Search: structural bio-chem

Number of results: 7,048

structural bio-chem
Write notes on the different non-covalent interactions that drive protein folding. Explain how these weak interactions are responsible for the specificity of enzyme-substrate and antibody-antigen binding reactions.
December 9, 2009 by gary

bio
what are the two structural components of a chromosome
March 1, 2011 by mary

AP CHEM
Aspirin has the structural formula below. Which functional groups does this molecule contain? I. Acid II. Alcohol III. Ester IV. Ether I have no way of posting the structure, but it is on google images! If you type in aspirin structural formula, it's the first one. Answer is I...
April 5, 2013 by Anonymous

CHEM
draw the structural formula for 1,3,5-trichlorocyclohexane
April 28, 2011 by Star

bio
How are the various types of blood vessels different in structure? How do these structural differences relate to their functions? Consider the presence of valves, muscular control of constriction and dilation, and the presence or absence of multiple tissue layers.
July 28, 2008 by denise

chem
Can someone show me the structural formula (lewis diagram) for ethene??? Please
March 31, 2010 by Stacey

bio-chem
C- and K+ channels are open
April 8, 2011 by donna

Biology/Chem
Can someone please explain how I would write the equation for the hydrolysis of lactose using structural formulae? Thanks.
March 20, 2007 by Confucious

Probability
4.3. In a certain college town, 27.5 percent of the students failed Mathematics (Math), 19.8 percent failed Biology (Bio), and 11 percent failed both Math and Bio. A student is selected at random. Let A represent the event of failing Math, so that A' is the probability of ...
September 2, 2012 by Carla Lopez

Chem
Can you show me the structural formula, NOT molecular formula for C3H6 = Cl2 (g) - C3H6Cl2 Please...:)
April 14, 2010 by Stacey

Chemistry
I'm confused. What's the difference between a structural formula and a condensed structural formula? Could you show me a website maybe that might outline the differences? Thank you for explaining this.
May 2, 2009 by Aline

bio chem
What is the ph when 100 mL of 0.1 M NaOH is added to 150 mL of 0.2 M Hac if pka for acetic acid =4.76?
July 12, 2011 by brit

Structural Design, Part 2
The structural technique that includes long vertical studs running from the sill plate to the second floor roof frame is called Frame
January 20, 2011 by Cynthia

chemistry
How does a complete structural formula differ from a condensed structural formula?
November 24, 2012 by Boo Boo

Chemistry - please help!
How do you do the simplified structural formula and full structural formula of ester? I'm really struggling,please help! e.g.methyl ethanoate/propyl methanoate
May 7, 2008 by Anonymous

Chemistry
WHat are the structural formulas for glycerin, hexane, and ethanol. Do these structural formaulas support the solubility data obtained?? It is almost impossible to draw structural formulas on the computer. In line formulas may help. But you need to refine your question to ...
February 20, 2007 by Dave

Chemistry
Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary
July 27, 2011 by mema

chemistry
Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary.
July 28, 2011 by mema

Chemistry
Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary.
August 10, 2011 by Allison

chesmistry
Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary
February 17, 2013 by lila

AP Bio
Please take a look at my AP bio question from last night. I still need help! Thanks
October 14, 2009 by Muffy

Bio
Scientific name for cow liver (used for a bio lab)
April 20, 2014 by Pink

application
i'm writing a officer aplication and need to write a bio, how long should the bio be?
May 3, 2012 by joee

A-Level Chemistry
How many alcohols (including both structural isomers and stereoisomers) can have the molecular formula C4H10O I know what structural and stereoisomers are but i want to know that whats the method to find the total number of isomers of this compound. Response will be appreciated.
April 14, 2010 by Areeb

bio
last question about bio Explain the statement below: Biological evolution began when cells formed
April 21, 2008 by Helen

Chemistry
1. Which of the following compounds is an unsaturated hydrocarbon? methane *propyne nonane methyl 2. The general name for hydrocarbons with at least one triple covalent bond is ____. alkenes alkyls alkanes *alkynes 3. What is the name of the smallest alkyne? butyne *ethyne ...
April 11, 2013 by Cassie

organic.chem
Compound X, C8H17Cl, is a chiral product of the radical chlorination of 4-methylheptane. X reacts in SN2 fashion with NaI in acetone to form Z, C8H17I. When the reactant is the R-enantiomer of X, only the R-enantiomer of Z is formed. What is the structural formula for X?
June 22, 2009 by melvin

Bio Chem
What would the freezing point of water be if one prepared a 10 m solution of urea in water? (Tfp = 1.86C/m x m)?
November 29, 2010 by Anonymous

Chemistry: Please check answers
1. Which of the following compounds is an unsaturated hydrocarbon? methane *propyne nonane methyl 2. The general name for hydrocarbons with at least one triple covalent bond is ____. alkenes alkyls alkanes *alkynes 3. What is the name of the smallest alkyne? butyne *ethyne ...
April 11, 2013 by Cassie

Chemistry (Check)
True or False? In a structural formula a shared pair of electrons is represented by two dashes. Is this True? Fill in the blank Structural formulas show the arrangement of____________ in molecules. is it electrons? A shared pair is represented by two dots. Structural formulae ...
November 29, 2006 by Bryan

bio/chem
how do i make percent solutions w/v starting with pure NaCl and distill water. eg 100ml of a 1% NaCl solution
May 13, 2010 by Amber M

chemistry
why is C4H10 the simplest alkene that can have structural isomers? Because compounds wwith the same molecular formula but different structural formula are called isomers in C4H10
June 29, 2010 by Jetta

Org Chem. I
Using the Cahn-Ingold-Prelog sequence rules,assign priorities to the groups around the chiral carbon in carvone. Draw the structural formulas for (+)- & (-)-carvone with the molecules oriented in the correct position to show the R & S configurations.
October 31, 2011 by stephie

Bio/Chem
If i change the concentration of the 3% hydrogen peroxide solution to 1.5%, am I changing its concentration or percent concentration?
April 20, 2014 by Pink

chem
Using condensed structural formulas, write a balanced chemical equation for each of the following reactions a)addition of H2O to trans-2-pentene using H2SO4 as a catalyst (two products) i got 2-pentanol adn 3-pentanol but it is counting it wrong!
September 25, 2012 by sara

home inspection
11. Structural failure in a roof may be due to A. the presence of a vapor barrier between the attic floor and the ceiling below. B. too little span between supporting members. C. cuts made in rafters or trusses for addition of components such as stairways and fans. *D. use of ...
February 24, 2013 by Austin

Science
What is the structural formulae for the equation for the hydrolysis of lactose? It is impossible for us to draw structures on the computer. Here is a web site that may help you. http://www.rpi.edu/dept/chem-eng/Biotech-Environ/IMMOB/lactose.html
February 10, 2007 by Samantha

Chemistry
Draw all the possible condensed structural formulas for the organic compounds with 6 carbon atoms that have a 4-carbon chain. [I don't know how to draw condensed structural formulas with a branch on it or how this type of structure is going to come out]
October 25, 2011 by Steph

Bio Chem
Carbonate is commonly used to buffer household detergent solutions to a pH of 9.0. How many grams on NaHCO3 and how many grans of NA2CO3 are needed to prepare 0.75L of a 100mM solution? The 2nd pKa of carbonic acid is 10.33.
September 4, 2014 by Cassandra

physics
what is the meaning and significance of the elastic limit and why it should be avoided? The elastic limit is the maximum deformation a material can go to, after that, structural changes occur, and it yields as if it were a plastic. Many structural failures occur after the ...
October 25, 2006 by Katrina

chem
How many structural isomers of dicloro,hydroxy,butanoic acid are there? Is there a website that has the structure with names??? The point of this question is to get you to draw the compound, then move the cloro and hydroxyls and count the variations. So draw the butanoic acid...
September 1, 2005 by Nisar

Chem/Bio/Nutrition
Why is the experimental Cal/g value usually less than the Cal/g value calculated from the Information on the nutrition label?
January 18, 2009 by Lena

Bio
I have a 67% in bio and our final exam is worth 30%. how much would I have to get on the exam to pass the course?
June 25, 2012 by Rebecca

chem
How many grams of glucose should we dissolve in one liter of water to get one molar solution (1M). This is the exact question given to me by my cell bio teacher. anything will help. MW of glucose is 180 grams.
January 19, 2011 by nicole

bio chem
Explain how to prepare 1L of a buffer at pH 7.4 using 1M hypochlorous acid (Ka = 3.5 x 10-8) and a 1 M NaOH solution. Indicate the volume of hypochlorous acid and sodium hydroxide to use. pH = pKa + log ([A-]/[HA]) Ka= [H+][A-]/[HA] Molarity = moles/L moles = g/molecular weight
March 12, 2013 by Anonymous

experimental design
I want to prove a thesis i have, it think my school has an experimental design class, but i cant take it because my schedule is full, but how would i go about proving my thesis? writing a paper? lab report? we never really learned this in bio or chem
November 11, 2008 by Lind

physics
why the electric and magnetic fields are perpendicular to each other? why we need ampere circuital law when we already have bio sevarts law? why we use sin(theta) in the bio sevarts law why not the other ratios?
August 2, 2014 by shiva

Biology--Urgent
Need help with these: a) What is a major structural advantage that eukaryotic cells have over prokaryotic cells? Why is this so important? b) Identify one similar and one different way each type of cell uses flagella c)The cytoskeleton of eukaryotes serves many functions. One ...
February 1, 2010 by mysterychicken

Chemistry
Draw the structural formulas of the expected products in the two following hydrolysis reactions. Breakdown of a Lipid reactions are glycerol and 3 fatty acids Draw the structural of the expected products in the two following hydrolysis reactions.
February 9, 2012 by Zack

Organic Chemistry
An expanded structural formula shows all the atoms of the molecule and all the bonds between the atoms in the molecule. Draw the expanded structural formula for 1,3-dichlorocyclopentane. Draw the structure by placing atoms on the grid and connecting them with bonds. Include ...
October 30, 2012 by Brittany

chemistry
1. All of the following are structural isomers of CH2=CHCH2CH=CHCH3 EXCEPT a. CH2=CHCH2CH2CH=CH2 b. CH3CH=CHCH2CH=CH2 c. CH3CH=CHCH=CHCH3 d. CH2=C=CHCH2CH2CH3 Is it D? 2. Almost all of the amoino acids found in living organisms are in the L-form. L-Alanine and D-alanine are a...
May 7, 2009 by anonymous

bio chem
5.From the amino acids below, name the amino acids you expect to find in the following regions of an enzyme and explain why. Ala, Val, Leu, Ser, Thr, Asn, Arg, Lys, Met, Pro, Gly, Phe, Cys, His a. Turn b. Interior c. Surface d. Active site (for General Acid-Base catalysis)
November 4, 2008 by jess

Bio/CHEM
11. You need to make a 1:8 ratio of DNA of two DNA types A and B (A:B). Your total aliquot should be 2ng/26 L. For each of the following sets, calculate how much of each extract you should use and how much TE-4: a. Extract A: 2.5 ng/20 L, Extract B: 252.3 pg/L b. Extract A...
May 24, 2013 by Remy

Chemistry
Explain in terms of forces between structural units why H2O2 has a higher melting point than C3H8. Also, which of the following has a lower melting point? NH3 or AsH3 C3H7OH or C2H5OCH3 I know that this has to do with hydrogen bonding. Can you possibly briefly explain ...
December 9, 2009 by Jillian

Biology
I believe that I have answered the following questions correctly, but would like some reassurance. organisms that are used to decontaminate soils may a. store contaminates in their tissues b. release pollutants into the air c. degrade the pollutants d. be plants or ...
April 22, 2011 by Paige

chemistry
I have to draw Lewis structures for hydrogen cyanide and cyanogen with nitrogen valency of three. Would I still need 2 dots after the N in hydrogen cyanide or would this represent nitrogen with a valency of 5? Yes. THose two "dots" are unshared electrons. Thanks. When writing ...
March 9, 2007 by Hol

Chemistry
Compound 1 / Compound 2 / O " CH2 = CH - CH - OH + CH3 - CH - CH2 - C ' ' ' CH3 CH3 OH i) Identify any functional groups in Compounds 1 and 2 and name them. ii) Complete the equation for reaction 1 by drawing the abbreviated structural formula(e) of the products of this ...
March 5, 2007 by Fraser

Chem-organic, bio, intro
A gas mixture contains oxygen and argon at partial pressures of 0.60 atm and 425 mmhg. If nitrogen gas added to the sample increases the total pressure to 1250 torr, what is the partial pressure in Torr of the Nitrogen added? Steps for solving this problem are greatly ...
October 16, 2011 by Ashleigh

economics
what is structural unemployment?
March 15, 2013 by justastudent

structural isomer?
what is structural isomer? can you alos give me examples? thanks ! Draw the structure pentant (acutally it is n-pentane) out to see it. CH3CH2CH2CH2CH3 H3C     \      CHCH2CH3     / See (if this came out right--usually there...
June 12, 2006 by jay!

bio
What effect does glucose 6 phosphate have on cellular respiration? I am doing a bio lab using a respirameter (sp?) and am trying to come up with a question to test. I am testing the respiration of germinating seeds and was thinking something along the lines of "How does ...
February 13, 2013 by Hannah

statistics
A basic statistics course had a total of 25 students which included 15 female (F) students whose distribution by major was 4 in Bio (B), 6 in COM (C), 3 in ECO (E), and 2 in PSY (P). In addition, the course had 10 male (M) students whose distribution by major was 2 in BIO (B...
September 22, 2011 by Anonymous

English 8
What is a structural analysis of a word?
April 1, 2008 by John

Chemistry
What is structural formula of Ester?
November 2, 2010 by Mr.Science

chemistry
what are structural examples of an aldehyde?
March 9, 2013 by landa

economics
Examples of structural unemployment
March 15, 2013 by working hard

chemistry
Covalent bonds are formed when two atoms share electrons. The pairs of electrons which are shared between atoms and hence number of covalent bonds, can be represented by the number of lines drawn between the symbols for the atoms. For example, a single bond is represented by a...
December 30, 2008 by trigger

science
wat is the structural organisation of cell.
June 26, 2008 by sangam

Chemistry
What is the structural formula for 1-bromo-3,4-dimethylheptane
June 8, 2010 by mary

chemistry
What is the structural formula of malathion,parathion?
May 17, 2011 by joy

chemistry
What is the structural formula of malathion,parathion?
May 17, 2011 by joy

chemistry
please me,,,what is the structural formula of endosulfan?
May 17, 2011 by joy

Chemistry 12
How to draw the structural diagram of 2,3 dichlorohexane
September 10, 2011 by Tarkan

CHEMISTY
why is but-1-ene a structural isomer of 2-methylpropene?
November 4, 2011 by yukila

CHEMISTRY!!
Hi I need help doing this question! Thank you in advance! Suppose that a mixture contains 1,4-dimethoxybenzene and benzoic acid. An experiment is performed in which this mixture is dissolved in diethey ether, the solution is mixed with aqueous soium hydroxide, and the aqueous ...
June 3, 2009 by Mandy

Science
What is the structural formulae for the equation for the hydrolysis of lactose?
February 7, 2007 by Samantha

Biology
What is the structural formulae for the equation for the hydrolysis of lactose?
February 7, 2007 by Samantha

CHEMISTRY
WHAT IS THE CONDENSED STRUCTURAL FORMULA OF 2,3-DIMETHYL-2-BUTENE
August 31, 2009 by ROSEL

chemestry
what is the condensed structural formula for. 5- ethyl-2-hexene
April 28, 2010 by yaimery

chemistry
draw the structural formula of 2-methyl-2hexene?
June 25, 2010 by Ana

Science
Give the condensed structural formula for 1-butanol
October 21, 2010 by Ashley

chemistry
please me,,,,,its urgent...what is the structural formula of the toxaphene?
May 17, 2011 by joy

chemistry
please me,,,,,its urgent...what is the structural formula of the toxaphene?
May 17, 2011 by joy

social atudies
what are mitigation structural stratergies of droughts?
June 24, 2011 by raghav

science
what is the structural formula for a) 3,3,4-trimethyloctane B) 2-methyl-1-pentene
February 26, 2013 by bob

science
what are some structural, behavioural, and physical adaptations of a goldfish?
June 17, 2008 by Jack

chemistry
why is C4H10 the simplest alkane that can have structural isomers?
June 25, 2010 by Ana

chemistry
why is C4H10 the simplest alkane that can have structural isomers?
June 25, 2010 by Ana

social science
what are the advantages or benefits of structural adjustment programmes
February 5, 2011 by mil

Chemistry
I need the structural formulas for the organic compound 1,3,5 Trichlorocyclohexane
April 25, 2011 by Chris

chemistry
Draw the condensed structural formulas of ethyl alcohol
May 22, 2011 by Ivy

Chemistry
Draw condensed structural formula for... 2,3-dichloropropanoic acid
January 11, 2014 by Anonymous

Chemistry
Draw condensed structural formula for... 2,3-dichloropropanoic acid
January 12, 2014 by Anonymous

Chemistry
Draw condensed structural formula for... 2,3-dichloropropanoic acid
January 12, 2014 by Anonymous

organic chemistry
What is the condensed structural formula of methyl 2-aminobenzoate?
February 21, 2014 by roxan mee

natural science
What are the structural zones within the Earth? How are they detected scientifically?
October 24, 2008 by nathalie

Science
What are the animal adaptations in the polar region? (structural, physiological, and behavioural)
January 15, 2009 by Mongsey

chemistry
What is the most common structural feature of chiral organic molecule?
November 11, 2009 by Cerise

physical science
please could you help me to draw the structural formula of C_5 H_12
June 16, 2010 by bindiya farswani

organic chemistry
Draw structural formula 4-propyl-1-methyl-cyclohexene
April 29, 2011 by Tiffany

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