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structural bio-chem

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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.

bio
what are the two structural components of a chromosome

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...

ap chem
Bismuth can be electrolytically reduced according to the following reaction: BiO(+)+ 2H(+)+ 3e¯ >>> Bi + H2O How many grams of bismuth can be reduced by applying a 5.60 A current for 23.8 min. to a solution containing BiO+ ions (assuming 100% efficiency)?

CHEM
draw the structural formula for 1,3,5-trichlorocyclohexane

chem
structural formula for 2-ethyl-1-hexene

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.

chem
Can someone show me the structural formula (lewis diagram) for ethene??? Please

bio-chem
C- and K+ channels are open

O-Chem
Write the structural formula of a compound with an unbranched chain of five carbon atoms that is an alkenoic acid.

Biology/Chem
Can someone please explain how I would write the equation for the hydrolysis of lactose using structural formulae? Thanks.

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 ...

bio/chem
how do electrolytes affect the formation of micelles?

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

english,maths,chem,phy,bio,agric,civic,etc
What are the equations of motion.

all
anyone have some good tips on how to study for bio phys and chem

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.

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?

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

chemistry
How does a complete structural formula differ from a condensed structural formula?

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

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 ...

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

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.

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.

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

AP Bio
Please take a look at my AP bio question from last night. I still need help! Thanks

Bio
Scientific name for cow liver (used for a bio lab)

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

Biology
What's the difference between Bio accumulation and Bio amplification?

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.

bio
last question about bio Explain the statement below: “ Biological evolution began when cells formed”

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 ...

Chem/bio question
HA is an acid that ionizes in 10% in solution. what is the [h+] of a 0.01 m solution of ha?

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?

Bio Chem
What would the freezing point of water be if one prepared a 10 m solution of urea in water? (ÄTfp = 1.86°C/m x m)?

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 ...

bio/chem
how do i make percent solutions w/v starting with pure NaCl and distill water. eg 100ml of a 1% NaCl solution

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 ...

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

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.

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

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 and 3-pentanol but it is counting it wrong!

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

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 ...

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.

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]

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 ...

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...

Bio chem
How many mL of 0.80 molar NaOH must be added to 20 ml of 0.40 of molar propionic acid, in order to produce a solution with a pH of 4.89? (PKa of propionic acid is 4.89.)

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?

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?

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.

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

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

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?

math,eng,phy,chem,bio,geography,economics
in an experiment of oxgen to hydrogen in water molecule. 9g of iron were heated in a current of hydrogen,6.5g of iron and 2.8g of water were formed using this data. determine the proportion by mass of oxygen to hydrogen in water

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 ...

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.

Biology
We are learning about proteins and their structure, but one thing is confusing me. At what structural point is something considered a protein? Is a protein formed after two amino acids synthesis, or is a protein the whole structure (all four levels) put together? I would think...

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 ...

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...

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)

math,eng,phy,chem,bio,geography,economics
if 8.99g of scandium and 8.99g of oxygen react to give scandium oxide and a leftover of oxygen 3.65g. what percentage of scandium oxide is the oxygen

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 ìL. 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 ìL, Extract B: 252.3 pg/ìL b. Extract...

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 ...

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 ...

Science
I have homework in which it asks "Describe the difference between elements, mixtures and compounds. (I have done the first sentence as it was fairly easy. Next is the part I don't understand) You need to draw their chemical formulae (for example KCl for potassium chloride) and...

Bio Chem
The pKa of propanoic acid (propionic acid), CH3CH2COOH, is 4.87. Consider an equilibrium mixture of propanoic acid and its conjugate base with a pH of 4.87. Draw the structure of the form (acid or conjugate base) that predominates after a decrease in [H3O ]. Include all ...

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 ...

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 ...

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 ...

economics
what is structural unemployment?

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 ...

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 ...

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...

English 8
What is a structural analysis of a word?

Chemistry
What is structural formula of Ester?

chemistry
what are structural examples of an aldehyde?

economics
Examples of structural unemployment

structural grammar
Identify: May I go to the library?

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...

science
wat is the structural organisation of cell.

Chemistry
What is the structural formula for 1-bromo-3,4-dimethylheptane

chemistry
What is the structural formula of malathion,parathion?

chemistry
What is the structural formula of malathion,parathion?

chemistry
please me,,,what is the structural formula of endosulfan?

Chemistry 12
How to draw the structural diagram of 2,3 dichlorohexane

CHEMISTY
why is but-1-ene a structural isomer of 2-methylpropene?

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 ...

maths literacy geog business studies bio English a
What can I study after school with the following subjects maths literacy business studies bio English lo Afrikaans geog

Science
What is the structural formulae for the equation for the hydrolysis of lactose?

Biology
What is the structural formulae for the equation for the hydrolysis of lactose?

CHEMISTRY
WHAT IS THE CONDENSED STRUCTURAL FORMULA OF 2,3-DIMETHYL-2-BUTENE

chemestry
what is the condensed structural formula for. 5- ethyl-2-hexene

chemistry
draw the structural formula of 2-methyl-2hexene?

Science
Give the condensed structural formula for 1-butanol

chemistry
please me,,,,,its urgent...what is the structural formula of the toxaphene?

chemistry
please me,,,,,its urgent...what is the structural formula of the toxaphene?

social atudies
what are mitigation structural stratergies of droughts?

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