Upper-Year Courses

Help with Raoult's law

Help with Raoult's law

Could anyone please help me with the attached question?

ehd123   887   3 Replies

padre

Nervous System help?

Nervous System help?

The correct action when the parasympathetic nervous system is inhibited is that it
a) slows heart rate, slows breathing, decreases adrenaline secretion, and stimulates peristalsis
b) constricts pupils, constricts bronchioles, promotes the r

inquirytobio   5125   3 Replies

Jinn52Nosten

Ok I need some in sight

Ok I need some in sight

We are doing Western blots in lab and I have a protein with MW of 80,000 but I am having a hell of a time finding out what it is.  Is there a site that could help me?

gardenlife1   1106   3 Replies

gardenlife1

If we decrease overall peripheral resistance in the human body

If we decrease overall peripheral resistance in the human body

If we decrease overall peripheral resistance in the human body, the heart would need to generate _______ pressure to generate a given C.O. and systemic arterial pressure would be ________.

missnorcal   2450   3 Replies

duddy

Calculating % Oxidation

Calculating % Oxidation

In the biochemistry experiment, I measured the absorbance value of metal solutions.

I understand the concept that lower number of absorbance, the more oxidation
But I need to show the graph, absorbance vs % oxdiation

I h

kayleigh   524   3 Replies

padre

I need some help with my lab (please see the attachment )

I need some help with my lab (please see the attachment )

Please see attachment for the question


Can somebody please help???

gogogo37   9080   3 Replies

bio_man

how to interpret this temperature vs product graph

how to interpret this temperature vs product graph

Below is a copy of the graph they completed for that assay.  Without anything other than the graph in front of you, provide two reasonable explanations for what you see.  Be concise.

Our class did an experiment in which we observ

fighter1   1008   3 Replies

duddy

Need Help with A&P physioEx 8.0 exercise 8

Need Help with A&P physioEx 8.0 exercise 8

Exercise 8 Chemical and Physical Processes of Digestion, pg. 105
Introduction: In this lab, I will learn how the complex digestive system breaks down substrates such as fats, proteins and carbohydrates.
Activity 1: Assessing Starch Digesti

MEKAYLA   3083   3 Replies

sbhuwan12

Physioex 8.0- Process of Digestion

Physioex 8.0- Process of Digestion

I am stuck on two questions, activity 3 (effects of pepsin on BAPNA)- please help!

Q1: Using the simulation, design an experiment that would allow you to test how the amount of BAPNA digestion varies with time. What is your conclusion?

chilipepper554   5457   3 Replies

duddy

Physio Ex 5 - Cardiovascular Dynamics

Physio Ex 5 - Cardiovascular Dynamics

1. Describe the graph of flow versus viscosity.

2. Explain the effect that pressure changes had on flow rate.

mrbarnhill   26502   3 Replies

duddy

need help with physio ex 8.0 exercise 1 (filtration)

need help with physio ex 8.0 exercise 1 (filtration)

What happened when you increased the driving pressure? Explain why fluid flows from the capillaries of the kidneys into the kidney tubules? How do you think a decrease in blood pressure would affect filtration in the kidneys?

naylzz   2577   3 Replies

naylzz

Medical Doctors considered Scientists?

Medical Doctors considered Scientists?

I often see a split answer on this, but should they be? Don't get me wrong, being a doctor has got to be one of the hardest and most important professions there is. However, science in terms of professional research revolves around falsifying hypothe

territa   866   3 Replies

terrokar

Frog cardiovascular Exercise 6 in PhysioEx 8

Frog cardiovascular Exercise 6 in PhysioEx 8

I need help with frog cardiovascular exercise 6 in physio ex 8.0 =( help please!!!

afields5   3134   4 Replies

bio_man

Is it possible to extract hormones from plants? If so, what equipment is needed?

Is it possible to extract hormones from plants? If so, what equipment is needed?

Hey, I am new to this forum, so I don't know if anyone can answer this question, but is it possible to do what I described above? I was just wondering because I had this experiment in mind and would like to implement it if it is feasible.

Edwin96   947   4 Replies

Edwin96

PhysioEx 8.0 for A&P Lab 2 - Skeletal Muscle Physiology (p.17)

PhysioEx 8.0 for A&P Lab 2 - Skeletal Muscle Physiology (p.17)

I lost the CD for the interactive lab - I have to turn in Lab 2 before midnight tonight (17Apr11). I need help w/ the answers - PLEASE!!!!   I am already suffering in the grade department after having a baby this term.

macekjm   6656   4 Replies

bio_man

Physioex 9.0 exercise 3 activity 6

Physioex 9.0 exercise 3 activity 6

Hi I am having a hard time in filling  out the activity chart on frequency of action potentials and finding out the activity questions.  Can anyone help who took this class.

LML9404   3640   4 Replies

ubeitgirl

PhysioEx 9.0 HELP

PhysioEx 9.0 HELP

I need some help with my physioEx 9.0 exercise 5 please

Activity 5

1.  Explain the effect of incresing the right flow tube radius on the flow rate, resistance, and pump rate?

2.  Describe what the left and r

lovethelight   2594   4 Replies

doseofmegan

Physio 9.0 Exercise 7 HELP

Physio 9.0 Exercise 7 HELP

Can anyone help with these??

PhysioEx 9.0  Exercise 7

Activity 2


Can anyone please help me with my PhysioEx 9.0 Exercise 7?


Activity 2

1.  What lung values changed in the sp

lovethelight   958   4 Replies

doseofmegan

PhysioEx 7.0 Skeletal Muscle - Activities 2 & 3 help???

PhysioEx 7.0 Skeletal Muscle - Activities 2 & 3 help???

Activity 2

how long is the latent period?
What occurs in the muscle during this apprarent lack of activity?

Activity 3
What is the minimal, or threshold, stimulus?
What is the maximal stimulus?
How can you ex

lil_one7979   12968   4 Replies

missy25

PhysioEx 9.0 Exercise 9 HELP

PhysioEx 9.0 Exercise 9 HELP

I am struggling with this.  Can someone help please.  PhysioEx 9.0 Exercise 9

Activity 1

3.  Starting at the renal corpuscle, list the components of the renal tubule as they are encountered by filtrate?

lovethelight   2431   4 Replies

doseofmegan

HELP! how should i persuade this reviewer?

HELP! how should i persuade this reviewer?

To investigate the effect of xxxxx(treatment) on bone metabolism in tail- suspended rats, studies were carried out focusing on bone quality and the molecular mechanisms.


60 Female 8-week old Sprague Dawley rat were randomly selected

glory123   1351   4 Replies

savio

How on earth can you fail a urine test with products you've not been exposed to?

How on earth can you fail a urine test with products you've not been exposed to?

I have read all I could find over the past twenty-four hours on this topic. Let me start by saying "I don't know you...you don't know me." Please accept what I'm saying as truth and help me figure this out before I totally lose it. I have had lower b

oatmealseo   757   4 Replies

daveys

NAD/NADH assays

NAD/NADH assays

Hi, I just finished a lot of NAD/NADH assays with several variations, like variation of substrate concentration, variation of enzyme concentration, and also variation of substrate.  This is where I got stuck.  I ran the assay and my alcohol

fatima2005   1384   4 Replies

fatima2005

PhysioEx 8.0 Exercise 3 Activity 6 and 7

PhysioEx 8.0 Exercise 3 Activity 6 and 7

Hello!  I need help with PhysioEx 8.0 Exercise 3 Activities 6 and 7.  The assignment is due Friday!  Can someone please help me?  Thanks in advance!

alaskatree   10527   4 Replies

star

Double checking bioinformatics post lab questions!

Double checking bioinformatics post lab questions!

Hello all! Today had my first lab in bioinformatics course and we used NCBI and things like  PubMed and Uniprot databases.

Have only 3 questions to double check

1) What is a “nuclear splice mRNA variant” ?I put its wher

Mateyman   357   4 Replies

duddy

physioEx 8.0 exercise 4 actvity 8

physioEx 8.0 exercise 4 actvity 8

Need help with table 4.2 #17 ,patient 1-5 PLZ

jennE   2252   4 Replies

duddy

PhysioEX 8.0 Human Physiology Exercise 2

PhysioEX 8.0 Human Physiology Exercise 2

I'm having a little trouble trying to answer this question in Activity 8.

4.   The graph shows a dip at muscle length = 90 mm.  Why is this?

Any help would be greatly appreciated.

Thank you

havoc-covah   3273   4 Replies

wrek

A&P 2 Lab Effect of Exercise on Arterial Pressure and Vascular Resistance

A&P 2 Lab Effect of Exercise on Arterial Pressure and Vascular Resistance

Laboratory Report
Activity:
Effect of Exercise on Arterial Pressure and Vascular Resistance

Predictions
Exercise will cause MAP to
increase
Exercise will cause systemic vascular resistance to
decrease
Exe

phxguy   16750   4 Replies

Takota

Physio 9.0 Post-lab Exercise 2 Activity 7

Physio 9.0 Post-lab Exercise 2 Activity 7

Part A
When the load to be lifted increases in weight, the latent period _______.
When the load to be lifted increases in weight, the latent period _______.
    decreases and disappears
    decreases
    remains unchanged
    in

penag93   5337   4 Replies

savio

anatomy and physiology

anatomy and physiology

Hi,can someone please answer this for me.thanks in advance




Muscarinic receptors...?
A) are activated by acetylcholine
B) are located on the surface of ganglion cells in both the sympathetic and parasympathetic n

berfrye   1512   4 Replies

berfrye

At what pH did you see the highest activity of salivary amylase? Why?

At what pH did you see the highest activity of salivary amylase? Why?

The following questions refer to Activity 1: Assessing Starch Digestion by Salivary Amylase.
1. At what pH did you see the highest activity of salivary amylase? Why?
2. How do you know that the amylase did not have any contaminating malto

AMIRA11   5300   4 Replies

duddy

Muscle Physiology Question..

Muscle Physiology Question..

Above a certain stimulus amplitude, the muscles response no longer increases.  Why does this happen? 

I'm thinking this happens because the maximum stimulus was surpassed.  What do you guys think?  Does it have so

missbliss   1259   4 Replies

missbliss

SCIN130 B001 Lab 5, 6, 7, 8.

SCIN130 B001 Lab 5, 6, 7, 8.

does anyone has answer for lab 6 alters and alters. Please help me

thudji   7295   4 Replies

how_mendel

Physio Ex 9.0 Exercise 9: Renal System

Physio Ex 9.0 Exercise 9: Renal System

3.True or False:  Drinking a lot of caffeine (coffee or cola) leads to an increased urine volume.  This might result from a decrease in the radius of the efferent arteriole.

ACTIVITY 4
30.What do you think would happen to t

thekaylee   8833   4 Replies

AMIRA11

PhysioEx 8.0 Skeletal muscle Physiology

PhysioEx 8.0 Skeletal muscle Physiology

I don't understand my exercise for skeletal muscle physiology and I'm needing help with answering all the activities.
REVIEW SHEET
EXERCISE 2
Skeletal Muscle Physiology

NAME:
LAB TIME/DATE:

Elect

pepdoz   18065   4 Replies

saintsnurse

Restriction Digestion and Agarose Gel Electrophoresis of Plasmid DNA

Restriction Digestion and Agarose Gel Electrophoresis of Plasmid DNA

I completed a lab in which an isolated plasmid DNA was used for the restriction analysis using two different restriction endonucleases. One enzyme was BamHI and the other EcoRI. After performing a restriction digestion in combination with agarose gel

dab353   2856   4 Replies

bio_man

physioex 8.0

physioex 8.0

Good evening, i have been working on my lab but im kinda stuck with just one question in lab 5 title cardiovascular dynamic. below is the question:
Try to Explain why this graph differs from the radius plot in the vessel resistance experiment. R

joyce de34   7406   5 Replies

duddy

Virus sample transport and preservation

Virus sample transport and preservation

can someone suggest how to transport virus seed also method of preservationand maintainance of that seed

pathak   1757   5 Replies

psyche360

Describe the chemical changes that are occuring during this period?

Describe the chemical changes that are occuring during this period?

In activity 2, how long was the latent period? 2.78
-Describe the chemical changes that are occuring during this period?

From activity 3, describe the effect of the increasing voltage. What happened to the forst generated and why did

lil_one7979   7031   5 Replies

duddy

Physiology

Physiology

Can somebody please explain why the latent period in a muscle twitch doesn't change with the increasing intensity of the stimulus being applied.

lovinlovely   1113   5 Replies

bio_man