1,698 Answered Questions for the topic biochemistry

03/27/20

Chemistry question about chemical equilibrium
Why is a chemical equilibrium considered a dynamic equilibrium? Because both forward and reverse reactions continue, even though there is no net change. Because there is no net change in the... more
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03/26/20

Chemistry MATH Question 1
A rate is equal to 0.0200 M/s. If [A] = 0.100 M and rate = k[A]0[B]2, what is the new rate if the concentration of [A] is increased to 0.200 M?
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03/25/20

How is a balanced chemical equation similar to a recipe? Explain and give examples.
Please explain it clearly for me. I really need help.
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Biochemistry Biology Physiology Mcat

03/21/20

Why do people get varicose veins
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Biochemistry

03/14/20

Biochemistry for NBDE
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Biochemistry

03/14/20

Which of the following statements is FALSE?

a. Enzymes speed up the attainment of a reaction equilibrium. b. Enzymes make reactions 10^3 to 10^20 times faster. c. Enzymes are chemically unchanged during the actual catalytic process. d.... more
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Biochemistry

03/14/20

In an enzyme reaction involving one enzyme and one substrate, the rate of the reaction depends on

a. both substrate and enzyme concentrations. b. enzyme concentration. c. the enzyme concentration at first and the substrate concentration later on. d. substrate concentration. e. All of the above... more
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Biochemistry

03/14/20

An inhibitor binds to a site other than the active site of the enzyme. Which statement below correlates with this observation?

a. The inhibition must be irreversible. b. It could be noncompetitive or uncompetitive inhibition. c. It must be a competitive inhibitor. d. It could be irreversible, competitive, noncompetitive or... more
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Biochemistry

03/14/20

What is the effect of incubating a mixture of RNA and DNA with 0.1 M NaOH?
a. DNA is hydrolyzed to nucleoside monophosphates.b. No effect. RNA and DNA are resistant to base hydrolysis.c. RNA is hydrolyzed to nucleoside monophosphates.d. Both RNA and DNA are hydrolyzed to... more
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02/27/20

How many bacteria will be there if the starting number of bacteria is 2 and the total time is 2 hrs. Generation time is 20 minutes
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Biochemistry Chemistry

02/26/20

Calculate the mass/volume percent (m/v) of 25.0 g g NaCl in 58.0 mL of solution.
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Biochemistry Chemistry

02/26/20

Vinegar is a solution of acetic acid in water. If a 145 mL bottle of distilled vinegar contains 27.2 mL of acetic acid, what is the volume percent (v/v) of the solution?
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Biochemistry Chemistry

02/26/20

Calculate the mass percent (m/m) of a solution prepared by dissolving 46.41 g g of NaCl in 168.8 g of .
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Biochemistry Chemistry

02/26/20

The sedative Demerol hydrochloride has the formula C15H22ClNO2 . How many grams are in 0.030 moles of Demerol hydrochloride?
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Biochemistry Chemistry

02/26/20

Cyclopropane, C3H6 , is an anesthetic given by inhalation. How many grams are in 0.27 moles of cyclopropane?
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Biochemistry Chemistry

02/26/20

270. mLof a 3.05 M NaNO3 solution
Calculate the grams of solute needed to prepare
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02/23/20

Electron Withdrawing vs Electron Donating groups
Hello, could someone please explain how to determine if an R group is more electron withdrawing or donating in a benzene ring (e.g. phenols etc.) (especially explain if oxygen is electrowithdraw or... more
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Biochemistry Organic Chemistry

02/22/20

whats the running pressure in torr?
High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals... more
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Biochemistry Chemistry

02/18/20

Equilibria Question
Upon conducting an electrophoretic mobility shift assay with DNA, 30% of your DNA is bound by a protein (P) when the total protein concentration is 2.0 μM and the total DNA concentration is 1 nM.... more
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Biochemistry Biology

02/05/20

What are the functions of lipids in our body ?
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Biochemistry Biology

02/05/20

Olive oil is water-insoluble because it is hydrophobic. Why is olive oil hydrophobic ?
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Biochemistry Chemistry

01/29/20

Chemistry Question
How many grams of NaCl (molecular weight = 58.5g mole^ -1) would you dissolve in water to make a 1M NaCl solution with 1-liter final volume ?
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01/29/20

Biology Question
How many grams of NaCl would you dissolve in water to make a 500 mM NaCl solution with 1-liter final volume ?
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01/29/20

Biology Question
How many grams of NaCl (molecular weight = 58.5g mole^ -1) would you dissolve in water to make a 1M NaCl solution with 1-liter final volume ?
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01/29/20

Biology Question
How many grams of sodium chloride would you dissolve in 500ml water (final 500ml) to make a 0.9% (w/v) saline solution ?
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