Biochemistry, Biology, Chemistry

64,576 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 ...

biology

how is the biochemistry of organisms evidence for evolution

biology

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

chemistry

How do you make a venn diagram of the 6 branches of chemistry? (Inorganic chemistry, organic chemistry, biochemistry, nuclear chemistry, physical chemistry, and analytical chemistry) like where would they go in the 3 circles

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?

biology/biochemistry

Why should we carry the Western blot in the low temperature while we were transferring SDS-PAGE information to the PVDF membrane?

Sta 112

This is my question every one . Please help me have it already I had 6 as my answer. In a class of 50 student 28,22,20 of them offer physics,chemistry and biology respectively also 4 of them offer physics and chemistry but not biology,3 offer physics and biology but not ...

math

A school has 63 students studying Physics, Chemistry and Biology. 33 study Physics, 25 Chemistry and 26 Biology. 10 study Physics and Chemistry, 9 study Biology and Chemistry while 8 study both Physics and Biology. Equal numbers study all three subjects as those who learn none...

Biochemistry, Biology, Chemistry

An enzyme works on two substrates, S1 and S2. Its Km for S1 is 100mM and its Km for S2 is 10mM. Based on this information, answer the following questions: 1. For a given [E] will it have a higher Vmax for S1 or S2? Explain your answer 2. Is S1 or S2 a better substrate for the ...

math

In a class of 50 student 28,22,20 of them offer physics,chemistry and biology respectively also,4 of them offer physics and chemistry but not biology,3 offer physic and biology but not chemistry,6 offer biology and chemistry but not physics if 13 of them offer physics only how...

maths

In a class of 80 students, 53 study Art, 60 study Biology, 36 study Art and Biology, 34 study Art and Chemistry, 6 study Biology only and 18 study Biology but not Chemistry. Illustrate the information on a Venn diagram. Determine the number of students who study (I) Arts only...

Math

In a class of 100 students, 40 offer Biology and 10 offer Chemistry and Biology .10 offer Physics and Chemistry , and 30 offer Physic and Biology . Each student offer at least one of the three subjects. The number of students who offer Biology is equal to those who offer ...

Math

Out of 300 student in final year in senior secondary school, 200 are offering biology and the150 offering chemistry how many are offering neither biology nor chemistry

Chem

why is an understanding of chemistry important in biology? All digestion, nutrition, muscle usage/reactions, cell division/reproduction, and all of the enzymatic processes at work in the body are chemisty. Even eyesight is a chemical reaction. So you need to know something ...

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 ...

Maths

In a class of 80 students,53 study Art,60 study biology,36 study Art and biology,34 study Art and chemistry,6 study biology but not chemistry.Illustrate the information on a Venn diagram.Determine the number of students who study Art only And Chemistry only

math

In a class of 80 students,53 study Art,60 study biology,36 study art and biology,34 study art and chemistry,6 study biology and 18 study biology but not chemistry.Determine the number of students who study =Art only =Chemistry only

Biology

Is there any biology websites for teens??? (NOT games! notes and quizzes to practice). The Science of Biology The Chemistry of Life Cell Structure and Function Photosynthesis & Respiration Something REALLY easy to understand(btw I'm going to the 9TH GRADE). please help (having...

biology

how does concepts of chemistry affect biology?

probability

The probability that a student passes Biology is 0.35 and the probability to pass Chemistry is 0.63. If the probability to pass both Biology and Chemistry is 0.4, what is the probability that he will pass either Biology or Chemistry?

Math

At small town high there are 100 students,each of whom takes atleast one of Biology,Chemistry,or physics.There are 50 student in Biology,60 in chemistry,and 70 in Physics.If 24 students are enrolled in exactly two of the classes,how many students are in all three?

Math

At Small Town High there are 100 students, each of whom takes at least one of biology, chemistry, or physics. There are 50 students in biology, 60 in chemistry, and 70 in physics. If 24 students are enrolled in exactly two of these classes, how many students are in all three?

bio101

2. Find a media piece—article, video, presentation, song, or other—that recognizes the fundamental concepts of chemistry in biology. Include the link or reference citation for the piece and describe how it helped you better understand how fundamental concepts of chemistry ...

English

1. He is absorbed in biology. 2. He is very interested in biology. 3. He is into biology. ----------------- Are they all the same in meaning?

AP BIOLOGY

I have a quiz on genetics on friday in AP Biology and I would like some sites with good ap biology questions on them. I don't know any of them which I could go to.

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 ...

MATHS

in a class of 60 students,the number of students who pass biology is 6 more than the number who pass chemistry.every student passed at least one of the two subject.how many pass in only biology.how many pass in only chemistry.

Biology

Is 9th grade biology hard? Is it interesting...?? I love life science but I just wondering if 9th grade biology hard??? I'm taking biology next year.

Science

I'm really bad at Biology and Science in general. Chemistry and Physics will be difficult for me because I'm not good at the Science branch even though I study and work hard for Science/Biology. What can I do to improve?

math

A textbook store sold a combined total of 462 biology and chemistry textbooks in a week. The number of biology textbooks sold was two times the number of chemistry textbooks sold. How many textbooks of each type were sold?

chemistry/biochemistry

How can we calculate the HCO3- (bicarbonate ion) concentration in water in 25C pH7.0? I think we can use PV=nRT equation, but I am not sure. If pH is changed from 7.5 to 6.5 ( around pka 6.3 of CO2), how can change the HCO3- concentration? Thanks in advance.

biochemistry

Is anybody know what is DESTINEDTAFAIL ?

Biochemistry

what's transcription?

( RHIBMS )

Biochemistry

(RHIBMS)

Biochemistry

Biology

The allostery of an enzyme governor is likely to take two forms.They are? A.active and regulatory B. rigid and flexible c. active and passive e. regulatory and relaxed http://en.allexperts.com/q/Biology-664/biology-73.htm

Biochemistry

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

ART Check

How would a visual effects designer working on an animated movie with human characters best use knowledge of biology? Knowledge of biology can help the designer to create accurate human features.**** Knowledge of biology can help the designer to create an action packed film ...

Enriched science

What is the goal of synthetic biology? A. The goal of synthetic biology is to mimic living cells B. The goal of Synthetic biology is to generate new tissues to replace damage tissues C. The goal of synthetic biology is to engineer living cells to perform specific functions D. ...

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?

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?

maths

In a class of 60 students,the number of students who passed biology is 6 more than the number who passed chemistry.Every student passed at least one of the two subjects.i.how many students passed biology ii.how many students passed chemistry iii.how many students passed only ...

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

biology tutor on jiskha

i post my biology questions here today and few days ago no teacher reply. there not any biology tutor on here?

Biochemistry

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

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

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