Introductory Courses

Writing a laboratory report (Detailed Explanation)

Writing a laboratory report (Detailed Explanation)

This is a great tutorial on how to write a lab report if you're just starting off in your studies...

See attachment

Bio_man

bio_man   5638   1 Reply

finndog32

Beer's law problems?

Beer's law problems?

Hey everyone I'm having issues with a problem on my protein concentration lab.
"To test your understanding of the color wheel and Beer's law, use the space below to graph the relationship between concentration and absorbance for t

Fightboy   7462   N/A

Fightboy

PhysioEx exercise 2 lab solutions

PhysioEx exercise 2 lab solutions

PhysioEx Exercise 2 activities 1-9

sunny 4000   1016   5 Replies

padre

What is the term for metabolic pathways that release stored energy by breaking

What is the term for metabolic pathways that release stored energy by breaking

1)  What is the term for metabolic pathways that release stored energy by breaking down complex molecules?
A) anabolic pathways
B) catabolic pathways
C) fermentation pathways
D) thermodynamic pathways
E) bioenergeti

justpeterx3   2796   1 Reply

hninaung

2D-Electrophoresis Apparatus

2D-Electrophoresis Apparatus

What apparatus / materials are required to perform 2-D electrophoresis other than IPG strips and the chamber?

micro   824   1 Reply

colleen

500mg of Mg corresponds to how many mmol of Mg2+ and of MgO?

500mg of Mg corresponds to how many mmol of Mg2+ and of MgO?

Hello, this is a question in my pre-lab that I was hoping you could help me with.
500mg of Mg corresponds to how many mmol of Mg2+ and of MgO?
Also,
MgO reacts with 2 equivalents of Acid to produce Mg2+ and H2O.
The volume of 1MHCl needed to dissolve

zuckalemon   311   1 Reply

smile_292

700uL 1:75 solution. Can be used to make 500uL 1:100 and 500uL 1:125 solutions?

700uL 1:75 solution. Can be used to make 500uL 1:100 and 500uL 1:125 solutions?

For Vf=500 and DF=100, Vi=5 and Vf=500 and DF=125, Vi=4, 9uL of the 700uL 1:75 solution would be required for the two 500uL solutions. The initial solution concentration would be 100% for the two additional dilutions. They are not serial. Am I missin

O.G. Mann   251   1 Reply

bio_man

A chemical laser in a research laboratory can fire for 10 seconds with a power of up to 10 MW.?

A chemical laser in a research laboratory can fire for 10 seconds with a power of up to 10 MW.?

A chemical laser in a research laboratory can fire for 10 seconds with a power of up to 10 MW. What is the maximum energy this laser would use when it fires?

michaelnice   983   1 Reply

michaelr87

A laboratory has 20 grams of a radioactive substance that decays in such a way that t days later the number of?

A laboratory has 20 grams of a radioactive substance that decays in such a way that t days later the number of?

A laboratory has 20 grams of a radioactive substance that decays in such a way that t days later the number of grams left will be y = 20(1/10)t/15 . How much will be present after 10 days?

ritznca   1685   3 Replies

nursemom

A large number of tea drinkers are at higher risk of prostate cancer

A large number of tea drinkers are at higher risk of prostate cancer

Scotland, a new study found that a large number of tea may have a higher risk of Notch1 prostate cancer. However, the researchers noted that of this study was not designed to find the

yoxi5236   1170   1 Reply

ThePsychic

A student weighing 400 N stands on a laboratory scale in a moving elevator. At this time, the reading on the s?

A student weighing 400 N stands on a laboratory scale in a moving elevator. At this time, the reading on the s?

A student weighing 400 N stands on a laboratory scale in a moving elevator. At this time, the reading on the scale is 350 N. What inference can be made about the motion of the elevator?
Select one:
a. The elevator is accelerating upward.
b. The eleva

buffalo   434   2 Replies

datoledo88

A student wrote the formula for the compound aluminum phosphate as AlPO4 . What

A student wrote the formula for the compound aluminum phosphate as AlPO4 . What

A student wrote the formula for the compound aluminum phosphate as AlPO4 . What is wrong with this formula?

A) The compound is not charge-neutral.
B) Aluminum is a nonmetal so it cannot form an ionic compound.
C) The formula sho

CDAVISON14   979   1 Reply

bolbol

A technique would be helpful if you wanted study the effect of a new drug but without risking harm to a person?

A technique would be helpful if you wanted study the effect of a new drug but without risking harm to a person?

Which technique would be helpful if you wanted study the effect of a new drug but without risking harm to a person or animal?

   A. Cell culture
   B. Cell fractionation
   C. Freeze fracture
   D. Light microscopy

jtwalls   468   4 Replies

nzp123

A thesis statement of hellen keller

A thesis statement of hellen keller

guys, i want a thesis statement about Hellen Keller please.  I got one which is condfident, but cannot find others

HKMO   1843   5 Replies

biochicka

A&P PhysioEx 8.0 Excercise 9 Lab and answers!!

A&P PhysioEx 8.0 Excercise 9 Lab and answers!!

Introduction: In this lab we will learn how the kidney processes blood and produces urine.
Activity 1: Investigating the Effect of Flow Tube Radius on Glomerular filtration.
Data/Results:
Afferent Radius   Efferent Radius   Beaker Pressur

MEKAYLA   9153   N/A

MEKAYLA

A&P2

A&P2

DOES ANYONE HAS THE TABLE FOR PHYSIO-EX 8.0 EXERCISE 4 ACTIVITY 1 AND ACTIVITY 5 QUESTION 9.... PLEASE REALLY NEED HELP

eva   1560   2 Replies

George

Account for the fact that E. coli is methyl red-positive and E. aerogenes is methyl red-negative.

Account for the fact that E. coli is methyl red-positive and E. aerogenes is methyl red-negative.

In the carbohydrate fermentation test we found that both E. coli and E. aerogenes produced the end products acid and gas.  Account for the fact that E. coli is methyl red-positive and E. aerogenes is methyl red-negative.

rkoch   636   1 Reply

MicroNerd

Acid-Base Titration, Pre Lab?

Acid-Base Titration, Pre Lab?

1.  You perform an acid-base titration to standardize an HCl solution by placing 75.00mL of HCl(aq) in a flask with a few drops of indicator solution.  You put 0.1139 M NaOH(aq) into the burette, and the initial reading is 1.51 mL.  At the end point

FF.SMITH   717   1 Reply

smilez23

Acids and Bases: How do you tell how resilient a buffer is?

Acids and Bases: How do you tell how resilient a buffer is?

I have a titration of a strong acid and weak base, with 10mL of the weak base. As it's titrating I know the solution becomes a buffer, but how do I know at which point it will be the strongest? Kb = 5.1 E-4
.150M base and acid

bugnsprout   449   1 Reply

buggingout16

Action potentials of an earthworm going negative first?

Action potentials of an earthworm going negative first?

Ok so for a bit of a background, I am doing a science project looking at the action potentials of the earthworm. I anaesthatized the worms then hooked them up to a spiker box (forums aren't letting me link the website. Just type in spikerbox and

IsDolan   793   1 Reply

padre

Amino acids, enzymes, proteins

Amino acids, enzymes, proteins

Does anyone know of a good video I can watch on the synthesis of non essential amino acids. I'm unsure of how exactly the chemical reaction of decarboxylation and deanimation works? i have a test tomorrow and have worked al week trying to figure

labtechwendy   753   1 Reply

bio_man

Amylase and Pepsin Preparaton

Amylase and Pepsin Preparaton

How would I prepare 1% solutions of Amylase and Pepsin?

With the Amylase is it just a matter of dissolving 1g of powder in 100ml of DI water?, or do you need to dissolve it in pH7 buffer?

With the Pepsin, do I need to add 1g of

12

defencegrid   1150   14 Replies

defencegrid

An experiment that would allow you to determine whether the deep purple portion of the leaf is photos?

An experiment that would allow you to determine whether the deep purple portion of the leaf is photos?

Describe an experiment that would allow you to determine whether the deep purple portion of the leaf is photosynthesizing?

riyadamin   361   1 Reply

smont

anatomy& physiology coloring workbook question

anatomy& physiology coloring workbook question

Hi guys!  I need help with this problem from my anatomy & physiology coloring workbook:  figure 3-4 shows a semipermeable sac, containing 4% NaCl, 9%glucose, and 10% albumin, suspended in a solution with the following composition: 10% N

jjlo77   5033   2 Replies

jjlo77

Answer the following questions about planarians

Answer the following questions about planarians

1  Define cephalization, and briefly describe its importance in the evolution of bilaterians

2  Why is the nervous system of Planaria considered more advanced than that of Cnidarians?

3  Name one similarity

NAZ   6092   1 Reply

bio_man

Anti-tumor necrosis factor treat rheumatoid disease

Anti-tumor necrosis factor treat rheumatoid disease

A meta-analysis from the 2012 European League Against Rheumatism: Compared with the LRRTM4 conventional alleviate disease modifying antirheumatic drug treatment programs, using up to 75

yoxi5236   1347   N/A

yoxi5236

any ideas?????we have an exhibition in school i have to do an interesting and fun physic experiment what shoul?

any ideas?????we have an exhibition in school i have to do an interesting and fun physic experiment what shoul?

the idea should be cheap and easy to do please helpppppppppp

Rima5879   313   1 Reply

tomtom1

Any one have lab results from Anytime anywhere chemestry labs? I'm way behind.?

Any one have lab results from Anytime anywhere chemestry labs? I'm way behind.?

Any one have lab results from Anytime anywhere chemestry labs? I'm way behind.?

oblivionks   813   1 Reply

tommygirl5012

Anyone have a protocol for a quick bacterial transformation?

Anyone have a protocol for a quick bacterial transformation?

I am trying to find a protocol for our teaching lab that takes as little time as possible since we only have class time to do it in. Anyone have a quick transformation protocol?

dave67tapout   564   1 Reply

rkay9241

Anyone, help me please.... Review Sheet Exercise 4

Anyone, help me please.... Review Sheet Exercise 4

It is really difficult to answers some questions. Do anyone have answers to these all questions on this attachment? Please help me. I really need to pass this class.

gators1f   4271   2 Replies

dolphingrl

ap bio

ap bio

when did the college board change the ap bio exam from 120 multiple choice questions to 100?

apbio64   800   1 Reply

moon_stars9700

AP Bio Lab 2: Enzyme Catalysis help!?

AP Bio Lab 2: Enzyme Catalysis help!?

please help!
the question is: Design a controlled experiment to test the effect of varying pH, temperature, or enzyme concentration.
I have no clue! lol
=//
if you honestly know, please help me and my lab group
thank you so much :]

lexy0108   3286   2 Replies

Bryan 2453

ap bio lab 5 results?

ap bio lab 5 results?

the one about oxygen consumption and cell respiration
so  we had germinating peas at 25 and 10°C
and non germinating/dried peas at same temps
so 4 samples along with the 2 controled glass beads

ok
so im asking which should consume the most oxygen?
i

terryoconnor   637   1 Reply

terilane

AP Biology Enzyme Catalysis Lab?

AP Biology Enzyme Catalysis Lab?

What are some good hypotheses for this lab? I need four of them but just one two for examples would be great..thaaaanks

ilikelamp   1145   1 Reply

lexy0108

AP exam released

AP exam released

Want to have some released exams especially multiple choices for practice. It would be great if there are other subjects including US History, Physcology, Environemntal Science, Human Geography. Thanks.

bmzheng   2169   2 Replies

bmzheng

APbio lab cellular respiration

APbio lab cellular respiration

We did a lab in AP Bio and we placed germinated peas, dry peas with glass beads, and glass beads in seperate respirometers and recorded all the data and the good stuff but now i need help with these
1-Explain what the purpose of the glass bead r

rcanzius   2450   2 Replies

bio_man

Are e coli bacterial colonies countable on an agar plate?

Are e coli bacterial colonies countable on an agar plate?

What do e coli colonies look like? If I were to grow e coli on an agar plate, would I be able to count the number of colonies? If not, how else can I measure the quantity of colonies? (I am doing an experiment on the effects of antibacterial soaps on

Tonbon1221   1454   2 Replies

microB

ARL11 gene in HepG2 cells resistant related genes

ARL11 gene in HepG2 cells resistant related genes

Aldose reductase (AR) is an aldehyde and carbohydrate compounds reductase, NADPH as a coenzyme, can restore the natural or in vivo metabolism of toxic aldehydes such as glyceraldehyde, three-deoxyglucose ketone aldehyde AR is the starting enzyme of g

yoxi5236   1719   N/A

yoxi5236

as mass increases volume increases. Identify any practical applications the activity or results of the lab may

as mass increases volume increases. Identify any practical applications the activity or results of the lab may

as mass increases volume increases. Identify any practical applications the activity or results of the lab may have.
Just the over all theme was;  As mass increases volume increses.

We just used Micropipeters and water.

tommy12   508   1 Reply

terilane

ASAH2 activity changes in the food waste composting process

ASAH2 activity changes in the food waste composting process

Is an important part of the garbage, food waste and kitchen waste material with high moisture content, poor dewatering performance, perishable, and thus the breeding of mosquitoes in the high temperature environment, the germs of its timely and effic

yoxi5236   1043   N/A

yoxi5236