Biochemistry

355 results

grd 12 U chemistry

Hi, i have a project for chemistry, i have to choose a scientist (i chose Micheal Smith) his career is biochemistry and i have to create a career related to biochemistry.. Question: After finding the famous chemist and then using their field of chemistry, create a career that ...

Grade 12 University Chemistry

Hi, i have a project for chemistry, i have to choose a scientist (i chose Micheal Smith) his career is biochemistry and i have to create a career related to biochemistry.. Question: After finding the famous chemist and then using their field of chemistry, create a career that ...

Biochemistry

1. MES (2-(N-Morpholino)ethanesulfonic acid) is a common buffer used in biochemistry labs to stabilize proteins. The pKa for MES is 6.09. a. What is the pH of 1 liter of a 200 mM MES aqueous solution? Clue: you will need to solve a quadratic equation. (2.5 points) b. How much ...

biochemistry-studying

I am taking biochemistry. I study for my tests, but I still can't do better than a D. After I turn my tests in, I feel confident that I did well until I get my tests back. I am frustrated and feel maybe I am too stupid for such a course. I literally cried today when I saw my ...

biochemistry

Is anybody know what is DESTINEDTAFAIL ?

Biochemistry

what's transcription?

( RHIBMS )

Biochemistry

(RHIBMS)

Biochemistry

Biochemistry

How do you find the pH of a 0.2M HCL?

BIOCHEMISTRY

calculate the pOH of 3X106-6M of HF

Biochemistry

How many millimoles are in 500.0 g of alanine (MW = 89?)

Biochemistry

What is the concentration of HNO3 in a solution that has a pH of 3.4?

Biochemistry I

Carbohydrates provide organisms with ..... and .....?

Biochemistry

At what pH is acetic acid 30% ionized?

biochemistry

a. What is the net charge on valine at pH 1? b. at pH 7? c. at pH 14?

Biochemistry

What joins two lipids?

biology

how is the biochemistry of organisms evidence for evolution

Biochemistry

How can I separate glucose and a triacylglycreol mixture? Thanks for any help ,,,,

Biochemistry

Is ATP an allosteric inhibitor for protease?

biochemistry

What is the number of g of NaCl in 500 ml of a 10% (w/v) solution? 1. 5% 2. 10% 3. 50% 4. 1% 5. 15%

biochemistry

What is the number of g of NaCl in 500 ml of a 10% (w/v) solution? 1. 5% 2. 10% 3. 50% 4. 1% 5. 15%

Biochemistry

could you help me to explain why doesn't the pH change when we dilute it with water? thanks

Biochemistry

Given that ∆Go’ = -15 kJ/mol and k1 = 1.5 X 10-6s-1, calculate k2.

biochemistry

What is the net charge on Phe-Asp at each pH? a. pH 1 b. pH 7 c. pH 14

biochemistry

how could nucleotides be named and what are thier functions?

biochemistry

how could nucleotides be named and what are thier functions?

biochemistry

The amino acid R has how many ionizable protons?

biochemistry

How to prepare 2L of 5.5M HCL solutions from scratch

biochemistry

How would you prepare 50ml of 0.2M HCL

Biochemistry

What is the pH of a 0.1M solution of TRIS in the acid from with pKa =8.3

Biochemistry

What is the condensed structural formula of cyclopropane?

Biochemistry

Why is DNA not soluble in ethanol, on a molecular level?

Biochemistry

When do plants carry out aerobic respiration

biochemistry

What amino acids have no chiral atoms?

BIOCHEMISTRY

BY CALCULATIONS HOW WOULD I PREPARE 200ml of 80% GLYCEROL (V/V)

biochemistry

What is the composition of 17 g glucose in 375 ml solution in % (w/v)? 1. 22.1% 2. 4.53% 3. 2.21% 4. 0.453% 5. 17%

biochemistry

does wheat gluten have any carbs or glucose in it?

biochemistry

what is the ph of 1.0 m acetic acid and 1.0 sodium acetate. (ka=1.8x10-5)

biochemistry

how do i prepare 2N HCl for 100ml of distilled water

Biochemistry

I have a 1/40 dilution as 19.18 mg/ml. how would i get back to the original solution?

Biochemistry

What physical properties are different for the isomers of C4H10? Explain.

Biochemistry

How is it that cortisol stimulates glycogen synthesis and gluconeogenesis? Isn't that contradictory?

BioChemistry

Write the oxidation equation for sec-butyl alcohol. How do I do this?

BioChemistry

Write the oxidation equation for sec-butyl alcohol. How do I do this?

Biochemistry

Calculate the deltaG0 for the oxidation of ethanol by NAD+. Urgent Thank You

Biochemistry

What is the pH after 5 mL of 0.1M NaOH has been added to 25 mL of 0.2M acetic acid?

Organic biochemistry

How to draw the skeleton structure for diethylammonium bromide?

Biochemistry

Why we cool the tube in anthrone test then observe the color

BioChemistry

how many moles of estradiol (mw = 272) are there in 2 ml of a 100 μm solution

Biochemistry

Can anyone help?? What are the Concentrations of the various ionic species of a 0.1 M solution of lysine at pH4?

biology

A scientist comparing organisms, in terms of biochemistry, might analyze ?

biochemistry

how do you make a 200ml of a 0.1M solution that has a molecular weight of 121.1g/mol

biochemistry

all three sugars have the formula C6H12O6. what does this reduce to

Biochemistry

What is the new pH when 1mL of 1M HCl os added to 5mL of 0.1M Phosphate buffer (pH 7.4)?

biochemistry

pls help! discuss the effect of acids and alkalis on DNA & RNA. Thanks.

biochemistry

What is the composition of 21 g NaCl in 500 ml solution (density 1.12 g/ml) in % (w/w)? 1. 0.375% 2. 21.25% 3. 3.75% 4. 4.75% 5. 2.125%

Biochemistry

If you want to lose 1 pound of "fat," which is 20% water, how many kilocalories do you need to expend?

biochemistry

discuss at least six factors affecting the performance of an enzyme. Thank you.

biochemistry

how to calculate a primary standard buffer using Kh2po4 and Na2Hpo4..

Biochemistry

If you make up a solution of 100mL of 0.1 M Hepes in the basic form, what will be the pH? pKa = 7.55

biochemistry

how do I calculate rate velocity using absorbence at 412/ min-1.

biochemistry

What mass of CH3COONa must be added to 50.0 mL of 0.50 M CH3COOH to make a solution of pH 6.0 ?

Biochemistry

Why are Km values of enzymes typically at or near the cellular substrate concentration?

biochemistry

What is the concentration of H+ in a solution of 0.2 M NaOH? i got [H+] = 5x10^-14, is this correct? all i did was [H+][OH-] = Kw

Biochemistry

Which two ionization states of lysine are present at pH 7 in what and ratio? Show calculation

biochemistry

show how to convert cyclohexanol to these compounds? a) cyclohexene b) cyclohexane c) cyclohexanone d) bromocyclohexane

biochemistry

Calculate the pH change of 10mL of HCl added to 1M phosphate buffer in 1L with initil pH of 7.2?

biochemistry

Trypsin can also hydrolyze N-alpha-benzoyl-L-lysine-p-nitroanilide. TrueFalse

biochemistry

explain the role of protein misfolding and aggregation in bovine spongeform encephalopathy

biochemistry

What is the number of ATP molecules produced by the beta oxidation of eicosanoic acid?

Science Biochemistry

List 3 ways the production of energy from nutrients is regulated in the body.

Biochemistry

Are cytosine and Tyrosine the only amino acids that are ionized R-group chains at pH of 7?

organic biochemistry

Calculate the number of moles of ZnCl2, in 100. mL of 0.600M solution.

biochemistry

What happens if I try to make a pH 6 buffer by diluting 0.100 M HCL (aq) with water .

Biochemistry

How were the 3 coupling sites in phosphorylation discovered using ETC poisons and artificial electron acceptors?

Biochemistry

Is the substrate level phosphorylation (of succinate) spontaneous under conditions that exist in the mitochondria?

biochemistry

How do you calculate the PH of a buffer solution prepared by mixing 75 mL of 1.0 M lactic acid and 25 mL of 1.0 M sodium lactate?

BIOCHEMISTRY

WHAT METHOD CAN BE USED TO PREPARE 0.2M POTASSIUM PHOSPHATE BUFFER USING KH2PO4 AND KOH?

Biochemistry

Do you know what the line angle formula for the tripeptide Ser-Ala-Asp as it would appear at pH 7?

Biochemistry

0.1M OF NaOH in 5ml is mixed with 0.1M of CH3COOH in 45ml, what is the concentration of CH3COO- in equilibrium mixture?

Biochemistry

Preform dilution calculations for 10 ml of 2 M stock solution. Molecular weight for the component is 48.6 g / mol

Biochemistry

Please help! i was wondering why a genome size determined in a lab would be smaller than that of the actual. thanks

Biochemistry

Calculate the mass (in g) of solid potassium hydroxide required to prepare: a) 1.75 litres of a solution with pH 11.5

Biochemistry

How would i make phosphate buffer 0.3M pH 6.5 1L using sodium mono and dibasic solutions?

Biochemistry

What kind of isomers can amino acids form? Which isomer is present in most living organisms?

science

What is the order analytical method fundamental to ? I know two of them are taxonomy, biochemistry. I need to know the third one.

biochemistry

ordered 1.0g of tetracycline to be given every 6 hours. on hand 500mg. how many will we need for 1 days treatment?

BIOCHEMISTRY

WHAT CONCENTRATION OF SOLUTION DO YOU GET IF YOU DISSOLVE 45G OF GLUCOSE (MOLECULAR WEIGHT =180) IN 500ML OF WATER?

Biochemistry

What is the net ionic equation for Phosphate ion + ammonium molybdate in the presence of nitric acid?

medicine

can some one tell me from where can i download free medical ebooks for biochemistry,physiollogy and embryology???

biochemistry

If you make up a solution of 100 mL of 0.1 M HEPES in the basic form, what will be the pH? I have no idea where to even start...

biochemistry

i am currently doing an iodine value lab an error occured in my results and i do not know how to write up the conclusion and the discussion

Biochemistry

Which solutions, animal or plant, were more suitable to resisting pH change? Why do you think this is the case? Explain.

Biochemistry

Which solutions, animal or plant, were more suitable to resisting pH change? Why do you think this is the case? Explain.

Biochemistry

For dialysis, why is leaving it overnight a more adopted practise than measuring the sample during the lab period?

Biochemistry

calculate Ph occuring when 100ml of 0.10m acid is added to 500ml of 0.08m acetate buffer,pka 4.75,ph 4.5

Biochemistry

Which of the following is the correct pH of a 211.7 mL solution (final volume) of pure water after 52.3 mL of 1.00 mM HCl was added?

biochemistry

Biochemical macromolecule lab, wheat gluten was tested with glucose? is that possible it emitted a blue color.

Biochemistry

Calculate [H+] or [OH-]as required for each of the following solutions at 25degrees and state whether the solution is neutral, acidic or basic

Biology / Biochemistry

How will the conformation of an Enzyme (a protease) be affected when the amino acid residue is substituted with glutamate instead of glutamine?

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