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. 👁 280

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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

  2. 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

  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

  4. biology

    Which of the following is not a principle of cell theory? a. cells are the basic units of life. b. All living things are made of cells c. Very few cells are able to reproduce*** d. all cells are produced from existing cells.

  1. 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

  2. Biology

    1. In which phase do cells rest?- Interphase. 2. Gametes (sex cells) are formed during a process called?- Meiosis. 3. In what phase of mitosis do chromosomes split into sister chromatids?- Anaphase. 4. Which type of stem cell is

  3. 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)

  4. Science

    Which of the following is not part of the cell theory? A.Cells are the building blocks of life. B.All living things are made up of cells. C.All cells are created from other cells through cell division. D.The nucleus is the control

  1. biology A

    Some differentiated cells become senescent almost immediately, leaving the cell cycle and undergoing terminal differentiation. Other cells have a high need to proliferate in order to grow and repair the organ or tissue, so they do

  2. algebra

    A rare bacterial culture is being grown in a lab. As the days progress, the cells multiply and grow. After 1 day, there is only 1 cell. After 2 days, there are 9 cells. After 3 days, there are 20 cells. After 4 days, there are 34

  3. Cynthia

    Which of the statements below correctly compares features of plant and animal cells? Plant cells have a cell membrane, while animal cells have both a cell wall and a cell membrane. Plant cells have ribosomes only on the rough ER,

  4. Mathematics

    A rare bacterial culture is being grown in a lab. As time passes, the cells multiply in a specific pattern.After 1 day, there is only 1 cell.After 2 days, there are 8 cells.After 3 days, there are 18 cells.After 4 days, there are

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