Biology

Please help.
Assume that a cell culture has a density of 10^8 cells/mL. You transfer 20 microliters of this culture onto the microscope slide.
A) How many cells do you expect will be in this 20 microliters drop you placed under the microscope?

B) You add to your sample above an equal volume of a liquid dye, India Ink solution. You transfer 20 microliters of this mixture onto a microscope slide. How many cells do you expect will be now on this 20 microliters drop you placed under the microscope?

  1. 👍 0
  2. 👎 0
  3. 👁 299

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    Which of the following is not part of the cell theory? (1 point) Cells are the building blocks of life. All living things are made up of cells. All cells are created from other cells through cell division. The nucleus is the

    asked by Dfca on October 4, 2014
  2. biochemistry

    please explain how to get these answers (answers provided): 1. If this cell were a muscle cell (myocyte), how many molecules of actin could it hold? (Assume the cell is spherical and no other cellular components are present; actin

    asked by stew on January 16, 2008
  3. Biology

    Which of the following statements is true? Since all cells carry out cellular repiration, they contain mitochondria. A cell cannot be subdivided into smaller units that maintain the living state. Plant cells contain chloroplasts

    asked by Ciel phantomhive on August 29, 2019
  4. bio

    You are a doctor in a hospital, and a patient is experiencing trouble with her skin repairing itself from a cut. The patient is also expecting a child, but the cells in the reproduction development are experiencing malfunction in

    asked by Victoria on May 18, 2019
  5. Calculus

    A common inhabitant of human intestines is the bacterium Escherichia coli. A cell of this bacterium in a nutrient-broth medium divides into two cells every 20 minutes. The initial population of a culture is 69 cells. (a) Find the

    asked by Anonymous on May 11, 2018
  1. Chemistry

    Little confusing!! I need help PLZ!!! Two half cells in a galvanic cell consist of one iron (Fe(s)) electrode in a solution of iron (II) sulphate (FeSO4(aq)) and a silver (Ag(s)) electrode in a silver nitrate solution. a. Assume

    asked by Andrew on June 17, 2011
  2. material science

    Derive an expression for the relative density, ρ∗/ρs, of an anisotropic honeycomb with hexagonal cells:n which the vertical cell walls are of length h, the inclined cell walls are of length l, the angle between the horizontal

    asked by karthik on January 26, 2017
  3. Math

    (Growth of Cells) Suppose that after t hrs, there are p (t) cells present in a culture, where P(t) = 5000e*^2t a) How many cells were present initially? b) Give a differential equation satisfied by P(t) c) When will the population

    asked by Mitch on June 29, 2009
  4. Calculus 2

    A culture of bacteria is growing at the rate of 20e^0.8t cells per day, where t is the number of days since the culture was started. Suppose that the culture began with 50 cells. (a) Find a formula for the total number of cells in

    asked by Alexis on September 18, 2016
  5. science

    Which of the follow comparisons would be an inaccurate analogy between prokaryotic cells and eukaryotic cells? A - A eukaryotic cell is like a college campus was a prokaryotic cell is like a one-room schoolhouse B - A eukaryotic

    asked by Anonymous on September 28, 2014
  6. chemistry

    Calculate the standard cell potential for each of the electrochemical cells? 2Ag+(aq)+Pb(s)→2Ag(s)+Pb2+(aq) E∘cell......V? 2ClO2(g)+2I−(aq)→2ClO−2(aq)+I2(s) E∘cell......V? O2(g)+4H+(aq)+2Zn(s)→2H2O(l)+2Zn2+(aq)

    asked by John on April 11, 2014

You can view more similar questions or ask a new question.