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August 30, 2014

Search: AP Bio potato/osmosis lab

Number of results: 2,814

Biology
I really need help with my science lab. I was sick when we did the lab on Thursday and Friday was a snowday so I did not get to get the observations off my peers. My teacher has allowed people one more day and I do not understand this Lab at all. If someone could help me write...
March 5, 2007 by Scott

Science
How could I estimate how long osmosis takes to occur in a potato? Will it depend on the salinity of the solution it is submerged in? Were I to make a prediction on how long it would take for osmosis would occur in my lab, how could I scientifically prove whatever time I choose...
February 5, 2011 by Anonymous

Biology
what would b possible sources of errors for a potato experiment involving osmosis with potato going into salt solutions ( 50% and 25%) and also potato going into 100% distilled water?
January 2, 2012 by iamme

AP Bio
What are the variables, hypothesis, and purpose for both parts of Osmosis and Diffusion AP Lab?
October 9, 2010 by Lola

Ap Biology
We performed a lab that studied osmosis in potato cells. We put cylinders of potato into varying molar Sucrose solutions and after recording different types of data were able to find the osmotic and water potential of the sucrose solution and potato cells. One of the questions...
November 24, 2007 by Jessie

Chemistry
In a lab I did, I put slices of potatos in varying amounts of sugar concentrations and one control group which contained only water and no sugar. What is suppose to happen? My data tells me that the potato weighed heavier after a day of being submerged. Is that correct? In ...
February 1, 2008 by Steve

AP Bio potato/osmosis lab
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase? i think it decreases but i'm not sure. and if a plant cell has a lower water potential than its surroundings and if pressure=0, is the cell ...
October 25, 2006 by lisa

AP Bio Lab
the water potential of a solution is equal to the osmotic potential plus the pressure potential. Since there is no differential pressure acting on teh solution, the pressure potential is equal to 0 making teh water potential equal to the osmotic potential. If the equilibrium ...
October 2, 2008 by Simone

Physics
A potato of mass m is attached to a string of negligible mass and length L. The potato is released from rest from a horizontal position. When the potato is at point p, the string attached to the potato makes an angle θ with the horizontal. In terms of m,L,θ ,and any ...
March 17, 2013 by Jaron

Bio
Scientific name for cow liver (used for a bio lab)
April 20, 2014 by Pink

Science
Luther Burbank was a plant breeder who developed a strain of potato plant that produced more tubers of larger size than other potato plants that were grown on farms at the time. This strain of potato was also resistant to the potato blight that had wiped out the potato crops ...
November 23, 2013 by Anonymous

Science
Luther Burbank was a plant breeder who developed a strain of potato plant that produced more tubers of larger size than other potato plants that were grown on farms at the time. This strain of potato was also resistant to the potato blight that had wiped out the potato crops ...
November 24, 2013 by Anonymous

science (check please (:)
Luther Burbank was a plant breeder who developed a strain of potato plant that produced more tubers (the part of the root that people eat) of larger size than other potato plants that were grown on farms at the time. This strain of potato was also resistant to the potato ...
June 13, 2014 by me

Calculus
Spud McTator climbs his sailboat's mast while anchored. He fires his potato gun. The height of the potato above the ocean is given by: h=0.002X*2+2X=22. Where X is the horizontal distance from the keel of the boat. How far from the keel is the height of the potato a maximum? ...
June 8, 2012 by help :)

science
How does osmosis explain the fact that a watery syrup forms when you put sugar on strawberries? I searched Google under the key words "osmosis" to get these possible sources: (Broken Link Removed) http://en.wikipedia.org/wiki/Osmosis I hope this helps. Thanks for asking. i ...
January 12, 2007 by Ashleigh

biology college
In the Osmosis and diffusion lab xplains the flow of water when an egg reaches equilibrium.
March 21, 2009 by saleem

PHYSICS
You shoot your potato gun horizontally from shoulder height, which is 190 cm. The potato lands 15 m away from you. You would like the potato to go 90 m, so you climb up a ladder and fire the gun horizontally from there. How high over the ground must the gun be?
February 15, 2014 by SHAWN

science
Define Osmosis and identify examples in which the human body uses osmosis.
November 17, 2009 by Tammy

ms. sue math help
2 more, 1 . at a party of 102 people 17lb of potato salad is served .if the potato salad was equally distributed among the guess , How much potato salad will each guest have? a friend just bought a tony hawk skateboard for 39.99. this was a savings of $17.00 What is the ...
April 16, 2014 by rian

Repost bio
hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the website :(, search on google liver lab with sand, and it is with a ...
February 26, 2008 by InSANELY URGENT

Social Studies
What is yam? Is it sweet potato or potato? What is the difference between yam and sweet potato?
November 30, 2009 by rfvv

Physics
A potato gun shoots a potato horizontally from a height of 5 feet. How long does it take to hit the ground?
February 18, 2012 by Steve o

Chemistry
A 150g potato cools from 100 degrees Celsius to 50 degrees Celsius. If the specific heat capacity of the potato is 2000 j/kg degrees Celsius, how much heat does the potato lose?
September 18, 2012 by Jerry

Bio lab question 2
What does adding an acid to an enzyme do to a reaction?
February 25, 2008 by Grade 12 Biology

Bio
Why do we study pollen tube growth in a lab on hormones?
April 3, 2008 by natash

math
a potato chip manufacturer has been accused of shortchanging their customers with 10 ouce of bags potato chips. a sample of 50 of that company's 10 ounce bags was take, and it was found that the average weight was 9.8 ounces with a standard deviation of 0.3 ounces.can we ...
April 25, 2013 by kiki

economics
what is producer surplus? “The more the competition among the sellers, the less the producer surplus enjoyed by the producers” – do you agree with the statement. Justify your answer. Suppose, a producer is willing to sell 50Kg potato at price Tk.18/Kg. If the market price of ...
September 11, 2012 by shakil

Potato
Is peeling potato hard or cutting potato hard? I just wanted to tell you this is a homework help website and I noticed that some of your posts aren't exactly about homework. This is for homework help not chatting!And what exactly are you talking about is peeling or cutting ...
December 29, 2006 by Rano

Science Experiment
I had three pieces of potato. I put one in a 5% solution, second one in a 1% solution, and the third one in a .1%. The 5% solution turned the potato black. The 1% solution had no effect. The .1% turned the potato blue. How does the concentration of a solution influence the ...
September 14, 2008 by Jennifer

Finance
1) A potato chip manufacturer has been accused of shortchanging their customers with their 10-ounce bags of potato chips. A sample of 50 of that company’s 10-ounce bags was taken, and it was found that the average weight was 9.8 ounces with a standard deviation of 0.3 ounces. ...
November 22, 2011 by Jaison

Biology - URGENT Enzyme Lab
Did a catalase producing hydrogen peroxide lab, used manganese dioxide, fresh frozen liver, potato, ice, fine clean sand, etc. Basically just added hydrogen peroxide to the catalysts under diff conditions and stuff. Just dont get this question which is : how do you account for...
April 5, 2013 by Shreya

English
What is the origin of 'couch potato'? Does it mean a potato on a couch? Why has it become a person who spends a lot of time sitting and watching TV?
June 14, 2011 by rfvv

math
There are 3 side orders: French fries, baked potato, or mashed potatoes. Find the probability of a customer choosing a baked potato. I think 1/3
March 13, 2014 by Anonymous

bio
What effect does glucose 6 phosphate have on cellular respiration? I am doing a bio lab using a respirameter (sp?) and am trying to come up with a question to test. I am testing the respiration of germinating seeds and was thinking something along the lines of "How does ...
February 13, 2013 by Hannah

physics
A potato launcher is launched at a 36 degree angle. The time the potato is in the air is 2.87 seconds and it goes 190 feet. How do I calculate the instant muzzle velocity at which it is launched?
January 26, 2010 by Anonymous

Biology
This is related to a biology lab I did. What is the purpose of adding sand to hydrogen peroxide (and put at a glowing splint at the mouth of the tube)? The purpose of this lab was to study the action of the enzyme catalase (potato)on hydrogen peroxide and to determine the ...
September 24, 2006 by Annie

math
can you please help me represent the total nummber of calories in x peanuts and y potato chips if each peanut contains 6 calories and each potato chip contain 14 calories. thank u
September 15, 2012 by kiki

chem
(b) (4 pts.) Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective ...
March 23, 2013 by Anonymous

Chemistry
Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective potato gun to ...
March 16, 2013 by Anonymous

Chemistry
Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective potato gun to ...
March 16, 2013 by Tonya

AP Bio LAB
would the water potential of potaot cells change if cylinders were alloewd to dry out? in what way? increase or decrease? thanks.
October 2, 2008 by Simone

Physics
Your potato gun has a muzzle velocity of 34 m/s. You want to shoot a potato and have it strike the ground 2.4 seconds later. At what elevation do you have to fire the gun?
February 15, 2014 by Ryan

SCIENCE
I need help. I cannot find an answer to this in my book. What would happen to a frog placed in seawater? What would happen to a sea cucumber put in fresh water? The concept here is osmosis. Bear in mind sea water is concentrated salt water. Then read the article at the link ...
March 8, 2007 by Suzi

Probability
4.3. In a certain college town, 27.5 percent of the students failed Mathematics (Math), 19.8 percent failed Biology (Bio), and 11 percent failed both Math and Bio. A student is selected at random. Let A represent the event of failing Math, so that A' is the probability of ...
September 2, 2012 by Carla Lopez

Math
Salmonella bacteria grows rapidly in a nice warm place. If just a few hundred were left on a cutting board when a chicken was cut up, and they get into the potato salad, the population begins compounding. Suppose the number present in the potato salad after x hours is given by...
February 13, 2014 by Andy

General Biology
There is only one bag potato chips left on the planet Earth. Ed and Trina have found it on the far side of ‘look out’ mountain with 2 grams of water inside the bag. The chips were soggy. Until another source of nutrients has been discovered they must share this bag of potato ...
February 6, 2013 by Tia

bio lab
Why photosynthesis does not occur in calibration tube which has water and chloroplast? Why we used deveined spinach leaves in photosynthesis reaction
November 29, 2011 by mas

science
How do you send a Pringles potato chip in the mail using only 2 pieces of typing paper and 1 roll of scotch tape without breaking it? wow thats confusing put it in the fragile mail possibly fold the typing paper to form a box and tape it. that cradles the potato chip, but ...
September 17, 2006 by alicia

Chemistry
Assuming that the [Potato extract] is .001 M and I am going to make a 10 ml solution and each drop is 1/20th of a mL, how do I calculate the [Potato extract] in each reaction solution, using 20 drops, 15, 10, and 5 drops for each one?
February 6, 2013 by Patricia

Chemistry
On a 10.5 ounce bag of potato chips, the manufacturer states that the single serving is one ounce, which is equivalent to 150 calories. How many kilojoules are in this bag of potato chips? Is it 6.5898kJ?
February 9, 2013 by Katie

chemistry
When 1g of baked potato is burnt in a calorimeter having a heat capacity of 350 J the temperature rises by 10 degrees celsius. determine the heat content of atypical baked potato having amass of 120g. Give your answer in both Kj Kcal.
June 5, 2011 by jonh

Ap Bio
Lab 12 - Dissolved Oxygen & Aquatic Primary Productivty. Ask to DESIGN an experiment to measure the effect of salinity on the solubility of oxygen in water. What variables would need to control?
September 23, 2008 by kelly

Chemistry test HELP!
A/an _____ solution is able to dissolve more solute. Choices: insoluble immiscible soluble unsaturated saturated supersaturated osmosis reverse osmosis semi-permeable membrane non-volatile boiling point freezing point capillary tubes atmosphere volatile solvent condensation ...
May 30, 2008 by Angel

Repost Repost Bio
I asked this, and didn't get a very helpful response. Question: hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the ...
February 26, 2008 by InSANELY URGENT(Science teacher help)

AP Biology
We just did the Osmosis and Diffusion lab in Biology. My teacher wants us to use water potential (and its equation) to explain the results....how do I use the water potential equation?
January 13, 2008 by Marie

bio lab
what should i labeled on giant chromosome slide? -things that should have on that chromosome.
February 7, 2012 by Yuni

chemistry
When 1 g of baked potato is burnt in acalorimeter having a heat capacity of 350jdegree celsius the temperature rises by 10degrees celsius.determine the heat content of atypical baked potato having a mass of 120g. give your answer in both Kj and kcal.
June 6, 2011 by michael

Chem Lab Help
I wanted to know if any one has done the Determination of ASA Content of Tablets Lab Report. I need help doing the post lab questions
December 4, 2012 by Latica

Character Buidling
My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation of the potato and ...
April 23, 2011 by Elizabeth

bio/science
Which of the following would be the best advice for the farmerof this land: h t t p ://tinypic. c o m /r/smydsg/3 (take out spaces) a. replace your current crop with a potato crop b. replace your current crop with a corn crop c. replace your current crop with an asparagus crop...
August 30, 2009 by casey

Chemistry
OMG, I did the other fifteen questions of my homework but I'm stuck on these. #1: Which has the higher average kinetic energy, a tub full of 50'C water, or a small cup of 52'C water. Why? Which has more total kinetic energy, the tub or the cup? Why? #2: Lithium, sodium, and ...
September 24, 2008 by W I C K E D

Character Buidling
My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation of the potato and ...
April 17, 2011 by Elizabeth

physiology/ anatomy
I'm doing a lab about osmosis/ diffusion. We put a 2 molar solution of NaCl into a dialysis bag and submerse the bag in water, weighing the bag after 15 minute increments for an hour. I need help explaining why the weight of the bag would fluctuate (EX. 6 grams -> 7 grams...
September 7, 2012 by kira

Microbiology
How can lab practices and safety precautions help reduce hazards in a lab setting? How do you handle blood cultures and pathogenic strains in a lab to minimize contamination?
May 3, 2013 by Sara

AP Bio
Please take a look at my AP bio question from last night. I still need help! Thanks
October 14, 2009 by Muffy

bio
why does 10 % Sodium Chloride Solution affect and kill Sarcina lutea but not Serratia marcescens Escherchia coli Bacillus subtilus Bacillus cerus? I am trying to find some evidence of why but can't. It is true though because I tested it in a lab.
January 29, 2012 by rebekah

math
Becky used 5 teaspoons of mustard to make a 32 ounces of potato salad. How many teaspoons of mustard does she she need to make 4 pounds of potato salad?
March 1, 2013 by janiece

application
i'm writing a officer aplication and need to write a bio, how long should the bio be?
May 3, 2012 by joee

bio
last question about bio Explain the statement below: “ Biological evolution began when cells formed”
April 21, 2008 by Helen

Character Buidling
My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation of the potato and ...
April 23, 2011 by Lisa

Biology
Equal sized potatoes are dipped into water,weak sucrose and strong sucrose solution.Predict (a)What potato would increase in size (b)What potato would decrease in size (c)Comment on the stiffness of the potatoes before and after dipping them into the respective solutions. (d)...
October 18, 2009 by Anonymous

Chem Problem
I need help solving this question, I have no idea what I'm supposed to do. What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.165 M in sodium chloride and 0.029 M in magnesium sulfate? Assume complete ...
March 1, 2013 by Student

Chem Problem
I need help solving this question, I have no idea what I'm supposed to do. What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.165 M in sodium chloride and 0.029 M in magnesium sulfate? Assume complete ...
March 1, 2013 by Student

Biology
Herring live in salt water. which do they have to do..expel large amounts of water to offset osmosis, need to take in large amounts of water of offset osmosis, slowly dehydrate over the course of their lives, or slowly swell upover the course of their lives?
June 4, 2010 by Jill

Biology
I had a Bio lab about gel electrophoresis and PCR. for each lab, we have to make up thoughtful, detailed questions. You don't have to answer the questions so please don't go through the trouble by answering them. The first question is about something we did in lab. My question...
December 1, 2009 by Anonymous

English
Tomorrow Erica will make German potato salad. Would the predicate be Tomorrow will make German potato salad?
September 18, 2010 by Anonymous

Lab in general
I just read my syllabus for lab and I am kind of shocked at what it says. I do know that I have to write out procedures of the lab in my nbk before coming to lab but I just read that it says "You will NOT be allowed to refer to you textbook/handout during the lab period" Is ...
September 3, 2007 by ~christina~

Ap Bio
SAME LAb - Collect a sample of water below some riffles in stream. Stream runs into a lake. 2nd sample from lake. Which smaple would you expect to have the higher DO? Explain
September 23, 2008 by kelly

statistics
The actual amount of potato chips that a filling machine puts into an “8-ounce” bag varies from bag to bag. If we consider the amount put into each bag as a random variable having a normal distribution with σ = 0.05 ounce, find the mean such that only 1% of the bags ...
March 22, 2012 by Anonymous

AP BIOLOGY LAB
I am doing an ap biology lab on plant photosynthesis. It's specifically lab # 4 on plant pigments and photosynthesis and it's on question # 8 on Exercise 4B: Photosynthesis/ The Light Reaction. Identify the function of each of the cuvettes. I already have gone to the lab bench...
November 2, 2008 by Roger

experimental design
I want to prove a thesis i have, it think my school has an experimental design class, but i cant take it because my schedule is full, but how would i go about proving my thesis? writing a paper? lab report? we never really learned this in bio or chem
November 11, 2008 by Lind

Bio Lab
A scientist receives a vial containing protein at a concentration of 35mg ml -1 and is asked to add 0.25ml of it to 6.75mls of Biuret solution. What is the concentration of protein in the Biuret solution in mkg/ml?
June 16, 2012 by Mandy

science
A reversed osmosis plant desalinates 5×106 L/day of feedwater containing 1,500mg/L of salts, yielding 3 x106 L/day of product water with 75 mg/L of salt. What is reverse osmosis? What is desalination? What would the salt concentration be in the brine? membrane Feedwater ...
August 24, 2013 by cucu

Chemistry labs in highschool
I was curious to know whether it was standardized practice to have labs for chemistry classes in highschool. I personally have never had labs for chemistry in highschool. In my state we have the Regents. You may or may not have heard of this test, but the reason I mention it ...
August 23, 2007 by ~christina~

math 1 question!!!!!!
Tasha is going on a picnic. The probability that it will be sunny is 2/3. The probability that someone will bring potato salad is 7/9. What is the probability that it will be sunny and that someone will bring potato salad? 1/9 4/27 14/27 6/7<------
June 3, 2014 by Anonymous

8th grade math
A box contains 5 bags of potato chips, 4 bags of pretzels and 1 bag of corn chips. Andre reaches in the box and randomly picks two bags, one after the other. What is the probability that Andre chooses a bag of potato chips if the first bag was pretzels?
February 21, 2012 by Piggy

Bio (please help me, important)
In my bio lab we are creating serial disk dilutions (100mg, 300mg, 500mg) from a plant extraction sample. Wood sample #1 (7mL of hexane) Hexane 0.6651g so .6651g of the plant was dissolved in 7mL of hexane. Then I did dilution calculations so 0.6551g/7 mL = 0.095g/ml so I ...
January 3, 2007 by Ali

Biology Lab gr 12
hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the website :(, search on google liver lab with sand, and it is with a ...
February 26, 2008 by INSANELY URGENT

Bio Lab
You need to prepare medium for your culture cells. Your salt solution is 10x concentration, dilute to 1x for use. You also need to add fetal bovine serum for a final concentration of 10%. What would you add of each for the correct final concentrations in a liter of media?
November 3, 2010 by Andy

Physics Lab
I'm doing a lab on centripetal force but I'm not sure how to make the graphs. If you search for "centripetal force lab" on Google and click "I'm Feeling Lucky" it will take you to the exact lab I'm doing. I'm supposed to graph Fc vs. Vt, Fc vs. Vt^2, and Fc vs. e^Vt, but I don...
December 18, 2008 by Bob

bio
I am doing the biology ap bacteria DNA transformation lab and I came up with a transformation efficiency of 150,000. I read somewhere that they should be between 2,000-8,000. is my answer way off? My group counted an average of 1529 colonies to begin with so i dont see how the...
May 17, 2013 by hannah

college
Osmosis and diffusion lab five eggs weighing 50 grams each have soaked in 30% surcose solution for 24 hours. One egg is then placed in 100 millitiers of each of the following sucrose solutions: 15%, 25%, 30%, 40%, 50%. Every ten minutes the eggs are removed and weighed. Create...
March 21, 2009 by saleem

physics
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at V=0.960c? b) How far does it travel in the lab during that time? c) What is the distance travelled in the lab frame according to an observer moving with this particle.
March 10, 2011 by libby

physics
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at V=0.960c? b) How far does it travel in the lab during that time? c) What is the distance travelled in the lab frame according to an observer moving with this particle.
March 10, 2011 by libby

SCIENCE!
How does osmosis explain the fact that a watery syrup forms when you put sugar on strawberries? Does the water in the strawberry cells rush out to the outside to dilute the sugar on the outside? Bob Pursley has answered this question for you. I also answered it a couple of ...
October 25, 2006 by Ally

Bio
In order to maintain homeostasis, human cells must have a higher concentration of sodium ions outside the cell than inside the cell. In addition, the concentration of potassium ions must be higher inside the cell than outside the cell. Which of the following forms of cellular ...
May 13, 2013 by Wyatt

Chemistry
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 59.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Assuming ...
February 18, 2012 by Melody

Chemistry
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Mc=? ...
February 19, 2012 by Ariel

chemistry
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Mc=? ...
February 19, 2012 by Sarah

chemistry
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 47.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Mc=? ...
February 19, 2012 by Janice

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