Solution A and B are separated by a semipermeable membrane. After 15 minutes, you notice the volume of solution B has increased by 5 mL, what can you conclude about the amount of solutes in these two solutions? Question 5 options:A. Solution A is hypertonic compared to solution BB. Solution A is hypotonic compared to solution BC. Solution A is isotonic compared to solution BD. Solution B is hypotonic compared to solution Aexplain reason for answer
Recently, there have been numerous problems with the polyethylene glycol-conventional tube testing antihuman globulin (PEG-CTT AHG) reagent used in a rural hospital blood bank. The staff complains that there are too many steps associated with this method and that it results in the detection of unwanted antibodies. The newly hired blood bank manager is considering changing from PEG-CTT to the gel method. What are the advantages/disadvantages?
Lab Results Sheet: Parts and Operation of the Brightfield Microscope Link: Virtual Microscope (University of Delaware)Activity 1. Image InversionDraw the image at 4x objective lens. Total magnification: ____________________Activity 2. The Effect of Lens Power on SizeNote: Assume that the power of the ocular lens of the microscope is 10x. Objective lens Total Magnification Diameter of Letter e (mm) Scanning, 4x Low Power,10x High Power, 40x Draw the image at 10x objective lens. Total magnification: ____________________Draw the image at 40x objective lens. Total magnification: ____________________ Questions1. Did the “e” appear right-side-up or upside down when viewed through the microscope? 2. Did the “e” stay centered when you changed objective lenses?3. Did the “e” remain in focus when you changed objective lenses? ___________ If not, did you have to need to make big adjustments or little adjustments to re-focus?
Biology Assignment Writing ServiceThe right-to-die is a concept stating that a patient with terminal illness should have the choice to voluntarily end his or her life. Some see this as a humane way to die with dignity, while others condemn this idea.Patients in the entire United States can currently choose to refuse life-saving or life-extending treatments through an advanced directive, but only a handful of states allow physician-assisted suicide. Each of these states have enacted slightly different laws, but most allow physicians to prescribe a lethal medication that a patient self-administers. Address the following questions in your post. -In your opinion, should competent adults have the right to choose physician-assisted suicide? -Should physician-assisted suicide be legal in every state? -How should we define the term “terminal illness?” -Is physician-assisted suicide ethically different than a patient refusing treatment? -Is it ethical to allow patients to suffer if they wish to end their life?
I. Using the spectrophotometer to determine %transmittance (%T) and Absorbance (A) Experiment Outline the steps to calibrating the spectrophotometer. Fill in the blanks. 1. Set the wavelength of your spectrophotometer to ______ nm 2. Place the ____ sample in the sample chamber and close the door. 3. Press the green _____ button and wait for the spectrophotometer to calibrate the blank reading to _____ absorbance and _____ transmittance
1. 5 trees in an orchard are apple trees and 20 are pear trees. What percent of the total trees are apple? If you don’t know how to problem text me immediately so I can show you – it won’t take long, we just might need to talk on the phone.Once you understand the problem above, go to the activities below:Read through the Lab Bench Activity at the following URL but stop at concept 8http://www.phschool.com/science/biology_place/labbench/lab8/hardwein.htmlAnswer the following questions:2. In the picture in Concept 8 – are you looking at phenotype or genotype?3. explain why you can’t count the number of recessive alleles in the pig population in Concept 6(Questions 4-6) A field has 86 pea plants, 30 of which have all purple flowers, and 56 of which have all white flowers.4. Which of these phenotypes is the dominant phenotype and which is recessive? 5. Why is it impossible to know how many dominant and recessive alleles from just this information about the pea plants and without doing any calculation?6. Calculate the frequency of the dominant and recessive allele in this population of pea plants
Which of the following statements about non-steroid hormones is true? They are lipids that enter the cell and bind to receptors on the nucleus. They are proteins that enter the cell and bind to receptors on the nucleus. They are proteins that bind to receptors on the plasma membrane. They are lipids that bind to receptors on the plasma membrane.
Match the cell organelles with the macromolecules that would mostly like be found in the organelles: i. Nucleic acid, proteins, carbohydrates, lipidsii. Proteins, Carbohydrates, lipids iii. Proteins
Why do you think females are typically the carriers of sex-linked traits, but those traits are not expressed? Cystic fibrosis (CF) is an autosomal recessive disease. Jane and John do not have CF but are worried about having a child who will have it, because John had a brother with the disease. While meeting with a genetic counselor it was determined that John’s parents were not affected with CF, yet his brother had it. What is immediately known about the genotypes of John’s parents? Is the genotype of John immediately known? Under what circumstances could John and Jane have a child with CF?
Suppose that you are measuring CO222(HINT: follow the carbons). exchange by a leaf. During the time period of your measurement, 8.00E 6 molecules of glyeraldehyde phosphate (PGAL) are made from CO in photosynthesis and 3.00E 6 molecules of glucose are used in cellular respiration. How many net molecules of CO would you detect being taken up by the leaf in your measurement? Enter your answer in scientific format, up to 3 significant figures.