The average human cell that is capable of dividing has a cell cycle of 20 hour. How many cells would there be in one week if they start with one cell at time zero?

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  1. Biology

    Looking at a cell under a microscope, you note that it is a prokaryote. How do you know? A. The cell lacks cytoplasm. B. The cell lacks a cell membrane. C. The cell lacks a nucleus. D. The cell lacks genetic material.

  2. 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) E∘cell......V?

  3. Biology

    Which of the following are examples of asexual reproduction? Select all that apply. - a male and female organism producing offspring together - a bacterial cell dividing - a bacterial cell sharing a plasmid with a different bacterial cell - a piece of a

  4. science please help!!

    There are many points during the cell cycle when the process of division may stop because of a problem. Sometimes the process doesn’t stop. Summarize the function of apoptosis in the cell cycle. to repair damaged or old cells to destroy damaged or old

  5. Science

    During which stage of the cell cycle does cell division occur? A. Quiescence B. Mitosis C. Interphase D. Cell Growth Help asap pls

  6. 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 able to differentiate into

  7. AP CHEMISTRY

    A voltaic cell is constructed that uses the following half-cell reactions. Cu+(aq) + e− -> Cu(s) I2(s) + 2 e− -> 2 I−(aq) The cell is operated at 298 K with [Cu+ ] = 2.7 M and [I− ] = 2.7 M. (a) Determine E for the cell at these concentrations. (b)

  8. biololgy

    A virus mutates, and therefore it has which of the following traits of living things?(1 point) It is made of cells. It evolves. It uses energy. It grows and develops. Compare a virus to a unicellular organism.(1 point) Viruses need energy; unicellular

  9. biology

    With each cell division , the chromosomes are divided between 2 daughter cells, yet the number of chromosomes in each cell does not change. What process ensures that the normal number of chromosomes is restored after each cell division? During which part

  10. Chemistry

    1) Assume that the reference half-cell is changed to a standard mercury-mercury (II) half-cell. a) What would be the reduction potential of a standard chlorine half-cell. c) What would be the cell potential of a standard chlorine-nickel cell. 2) For each

  11. Biology

    25. If there are 12 chromosomes in an animal cell in interphase of the cell cycle, what is the diploid number of chromosomes for this organism? A) 6 B) 24 C) 36 D) 12 E) 48

  12. Physics

    When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms. What is the average current(Value and units)?

  13. Science

    Which of the following distinguishes this bacterial cell from eukaryotes? a DNA in the bacterial cell is always in contact with the cytoplasm, and all eukaryotes have DNA located inside a nucleus. b The bacterial cell has both a cell membrane and a cell

  14. Chemistry

    The following galvanic cell at standard conditions has a potential of 0.03 V: Ag+(aq) + Fe2+(aq) → Fe3+(aq) + Ag(s). What would be the effect of increasing the concentration of Ag+? A. The cell potential will decrease. B. The cell potential will

  15. Mitosis Quick Check/Science

    What is a tumor?(1 point) a checkpoint in the cell cycle

  16. Biology

    In which cell of the human body would you expect to find the most mitochondria? Group of answer choices 1- A muscle cell in the leg muscle of a runner. 2- A red blood cell that transports oxygen. 3- A cell of the stomach lining that manufactures digestive

  17. 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

  18. 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 cell is like a flip phone

  19. Chemistry

    The following galvanic cell at standard conditions has a potential of 0.03 V: Ag+(aq) + Fe2+(aq) → Fe3+(aq) + Ag(s). What would be the effect of increasing the concentration of Ag+? A. The cell potential will decrease. B. The cell potential will

  20. Science 7A

    What is the first phase of mitosis? anaphase telophase prophase ****** metaphase During which phase of mitosis do the chromosomes align at the middle part of the cell? metaphase ******* prophase telophase anaphase During which stage of the cell cycle does

  21. AP CHEMISTRY

    A voltaic cell is constructed that uses the following half-cell reactions. Cu+(aq) + e− -> Cu(s) I2(s) + 2 e− -> 2 I−(aq) The cell is operated at 298 K with [Cu+ ] = 2.7 M and [I− ] = 2.7 M. (a) Determine E for the cell at these concentrations. (b)

  22. biology

    Organisms must be able to adapt to a changing external and internal environment. An organism's ability to maintain a stable internal environment is known as homeostasis. How does a cell's membrane help an organism maintain homeostasis? A. Cell membranes

  23. Science

    A student observed two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria? A. The cell produces more waste. B. The cell makes

  24. biology

    7)When a body cell divides through the process of mitosis, the chromosomes in the daughter cells * 10 points are formed when chromosomes from the parent cell cross over. are identical to the chromosomes of the parent cell. represent only the healthiest

  25. physics

    Given that the electric potential is 7.0×10^−2 V higher outside the cell than inside the cell, and that the cell membrane is 0.10 thick, calculate the work that must be done (in joules) to move one sodium ion from inside the cell to outside.

  26. chemistry

    The reaction described by the equation Zn + Hg2Cl2 2Hg +Zn+2 + 2Cl is run on electrochemical cell. The E^0 of the cell at 25 degrees C is 1.03V. In the same cell, [Cl-]=.10 M and [Zn+2] is unknown, and the measured cell voltage is 1.21V. Compute the value

  27. Science 7R Q2

    What is the difference between a plant cell and an animal cell? a. plant cell have cell wall a animal cell don't b. a plant cell have cholroplast and a animal cell don't c. plant cell have a huge vacuole and a animal cell have a small vacuole d. animal

  28. Science Ms. sue help

    what is the function of a cell wall A) to Protect and support the cell B) to preform different functions in each cell C) to prevent water from passing through the cell D) to prevent oxygen from entering the cell. Help!!!!

  29. a n p

    which structure regluates the transport of substances in and out of a cell? cell's cytoplasm cell membrane nuclear membrance cell wall I believe it is cell membrane

  30. Biology

    Which of the following statements best explains how the cell membrane regulates what goes in and out of the cell? A. the membrane allows only certain molecules to move into the cell B. the membrane destroys most molecules so that they do not enter the cell

  31. chemistry

    - What fraction of an E coli cell is occupied by its DNA? How would I find the fraction? If I knew the volume of an E coli cell, would I divide that by the volume of DNA in an E coli cell? - A human cell is typically spherical with a diameter of 20

  32. EXCEL 2010 (again)

    I am not allowed to use the AutoSum or AVERAGE functions to work out this problem. I need to find the average of a cell range. C3:C9 contains numbers (one cell contains zeros) the range adds up to 230. To find the average I need to use the information

  33. Biology

    For ease, biologists represent 1 set of chromosomes from any organism by the letter n. Any cell with 2 sets is called diploid and represented as 2n. Any cell with just that 1 set (n) is called haploid. Two cells are isolated from a sexually reproducing

  34. biology

    Cells such as neurons, which rarely if ever divide, can be explained as __________. A) being in the G0 phase of the cell cycle B) unable to activate apoptosis C) being in the G1 phase of the cell cycle D) having no active cell cycle I'm pretty sure it's A

  35. biology

    1. From one molecule of glucose, which process generates the largest amount of ATP? a. Glycolysis in a prokaryotic cell under aerobic conditions b. Glycolysis in a eukaryotic cell c. the TCA (Krebs) cycle in a prokaryotic cell d. the TCA (Krebs) cycle in a

  36. Biology

    a. A human cell is placed in a container of sugar water. Explain what would occur, if the cell membrane is impermeable to sugar. b. Another cell is placed into a container of sugar water. However, this cell has the capability to allow large molecules such

  37. bio

    In the four steps of "AEROBIC CELLULAR RESPIRATION" where do the Intermediate Step take place in a cell; Krebs Cycle - Where does it take place in a cell?; Electron Transport Chain - Where does it take place in a cell?

  38. SCI

    Hypothetically speaking, I placed a cell in a glass of water and after about a day the cell grew in size. Why did the cell grow? Well I was thinking this: The reason the cell grew was because there was a higher concentration of water outside of the cell

  39. Biology

    All cell are surrounded by membranes. The main role of the cell membrane is to A.regulate the cell's interactions with the environment b.release any type of molecule out of the cell c.arrange the cell's organelles in the cytoplasm d.prevent water from

  40. Biology

    27. When a cell has to endure lasting changes in its environment that require it to actively transport more molecules than normal through the cell membrane, what effect will this have on the mitochondria of the cell? The cell will need

  41. science

    Assume an average human cell has a cell cycle of 20 hours. Calculate how many cells there would be after 80 hours.

  42. Science plz help

    Explain a process in the human body in which there is evidence of the cell cycle at work. Does Hair grow ? Do fingernails grow? The monthly cycle is also an example of cell growth. What about your increasing weight (getting tall, getting heavier)?

  43. Biology

    Compare the functions of a normal cell and that of a cancer cell with regards to cell division. Discuss the cell cycle control system and checkpoints and how these might be altered in a cancer cell.

  44. Biology, Cell Division

    With each cell division , the chromosomes are divided between 2 daughter cells, yet the number of chromosomes in each cell does not change. What process ensures that the normal number of chromosomes is restored after each cell division? During which part

  45. Biology

    Human vision can distinguish objects down to about a 4th of a millimeter (~250 micrometers). Given this, which of the following are generally visible to the human eye? Proteins Bacterial cell Animal cell Poxvirus Ribosomes Plant cell None of the above I

  46. AP Chemistry

    A voltaic cell is constructed that uses the following half-cell reactions. Cu+(aq) + e- Cu(s) I2(s) + 2 e- 2 I -(aq) The cell is operated at 298 K with [Cu+ ] = 2.3 M and [I - ] = 3.3 M. (a) Determine E for the cell at these concentrations. (b) If [Cu+ ]

  47. CHEMISTRY

    The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1 atm) half-cell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on

  48. division differences

    use table to compare appearance of the dividing plant cells with the appearance of the dividing animal cells. dividing of plant cells= -divide the cytoplasm between the 2 new nuclei by forming cell wall between nuclei. i need dividing animal cell help.

  49. biology

    I took this quiz more than 5 times even using my notes and it comes as a 5/10 can someone help? 1. In a unipuppicorn, the somatic cells must make more cells in order to grow. If its somatic cells contain 18 chromosomes (as chromatin), how many chromosomes

  50. Science- Cells

    2 adjectives to describe each cell- nerve cell muscle cell bone cell and blood cell

  51. AP Biology

    A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1

  52. Biology

    All cell are surrounded by membranes. The main role of the cell membrane is to A.regulate the cell's interactions with the environment b.release any type of molecule out of the cell c.arrange the cell's organelles in the cytoplasm d.prevent water from

  53. Science

    Assume that you have a cell that has a Zn^2+ concentration of 0.0335M and Ag^+ concentration of 0.0012M. The cell temperature is 35.0 degrees Celsius. Find the cell potential and give the cell notation of the cell.

  54. Biology

    A researcher applies a drug that interferes with polymerization and depolymerization of microtubules. What would you predict about the cell’s ability to go through cell division? A. The cell division process would not be affected. B. Cell division would

  55. college Chemistry

    If [K+] inside a cell is 25 times greater than a [K+] outside the cell, what is the difference in potential between the two sides of the cell wall? (this is a "concentration cell" style of problem)

  56. Physics

    The voltage across the cell membrance is 0.070 V the cell membrane is 0.10 µm thick what is the work done in joules to move one sodium ion (charge= 1.6 x 10 ^-19 C) from inside the cell to outside the cell?

  57. Biology

    b) Identify one similar and one different way each type of cell [prokaryote and eukaryote] uses flagella. My answer: In both prokaryotes and eukaryotes, flagella protrude from the cell's surface and enable movement. Prokaryotic flagella rotate, propelling

  58. biology

    Replication of the E. coli chromosome takes 40 to 45 minutes, but the organism has a generation time of 26 minutes. How does the cell have time to make complete chromosomes for each daughter cell? For each granddaughter cell? my reponse was that the cells

  59. biology

    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

  60. biology

    How will auxin influence cell growth in the roots of these plant (1point). a. The cell has more solute, so solvent moves from outside the cell to inside, causing the cell to swell. b. The environment has more solute, so solvent moves from inside the cell

  61. BIOLOGY

    which following of the aspects of the cell cycle would be most disrupted by cytochalasin B SPINDLE FORMATION CLEVAGE FURROW CELL ELONGATION DNA SYNTHESIS SPINDLE ATTACHMENT

  62. science... PLEASE HELP!

    The problem says "during which stage of the cell cycle does the cell membrane pinch the cell in two?" I said the cytokinesis stage is when the cell membrane pinches the cell in two. Am I correct? If not, please help!

  63. Biology

    Which would have more DNA an average cell of a bacterium or a human cell? And what's the reason for it having more?

  64. Science

    a. A human cell is placed in a container of sugar water. Explain what would occur, if the cell membrane is impermeable to sugar. b. Another cell is placed into a container of sugar water. However, this cell has the capability to allow large molecules such

  65. science

    Assignment says label the parts of a plant cell. I'm blind so I'm going to write the names and put their functions. Cell wall, strenghthens the cell. vacuole is where the cell sap is produced. cell membrane is on outside on the cell. It controls what goes

  66. biology

    imagine if you are a water molecule outside of an animal cell of a human.the person just drunk the glass.write a persuasive letter to the cell membrane convincing it to let you inside the cell.

  67. medicine

    What is the main difference between a stem cell and a cancer cell? A. A stem cell grows at a faster rate than a cancer cell B. A stem cell obeys signals to stop growth, but a cancer cell doesn't C. A stem cell is usually external; a cancer cell is usually

  68. Chemistry

    The DNA of an E coli cell measures 1.4 mm in length, when extended and 20 angstroms in diameter. a) Calculate the volume of DNA in an E coli cell in cm^3 b) What fraction of an E coli cell is occupied by its DNA? c) A human cell is typically spherical with

  69. AP Chemistry

    A voltaic cell is constructed that uses the following half-cell reactions. Cu+(aq) + e- Cu(s) I2(s) + 2 e- 2 I -(aq) The cell is operated at 298 K with [Cu+ ] = 2.3 M and [I - ] = 3.3 M. (a) Determine E for the cell at these concentrations. (b) If [Cu+ ]

  70. CHEMISTRY

    The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1 atm) half-cell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on

  71. CHEMISTRY

    The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1 atm) half-cell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on

  72. science

    A student observed two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria? A. The cell produces more waste. B. The cell makes

  73. Science

    A student observed two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria? A. The cell produces more waste. B. The cell makes

  74. Biology

    I have answered all the other questions on this sheet but I am stuck on this one: Why is it fair to assume that the proportion of cells in each phase of the cell cycle represents the proportion of time spent by individual cells? This is to do with the cell

  75. Anatomy and Physiology

    A eukaryotic cell in a human body has just reproduced assexually. Which of the following has mostl likely just occurred? A. Metastasis B. Fertilization C. Mitosis D. Meiosis In which phase of the cell cycle are the chromosomes split? A. Anaphase B.

  76. biology

    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 cell is like a flip phone

  77. Bio

    A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1

  78. AP BIO

    1. A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1

  79. Biology

    27. When a cell has to endure lasting changes in its environment that require it to actively transport more molecules than normal through the cell membrane, what effect will this have on the mitochondria of the cell? The cell will need

  80. Biology

    1. When and where was the first cell born? How did it happen? 2. What are the circumstances that make the appearance of the cell in this earth? 3. What are the differences between prokaryotic and eukaryotic cell? How about plant and animal cell?

  81. Biology

    1. How can transport be disrupted in a cell? 2. How does the cell membrane work? 3. How does the cell communicate with the outside and inside environment? 4. How does the cell use 1-3 to help maintain homeostasis?

  82. Physics

    The voltage across the cell membrance is 0.070 V the cell membrane is 0.10 µm thick what is the work done in joules to move one sodium ion (charge= 1.6 x 10 ^-19 C) from inside the cell to outside the cell?

  83. biology

    A human cell has 10 ^14 cells and each cell has about 6.4 x 10 ^9 nucleotide pairs of DNA. What is the length, in cm, of double helix that can be formed from the total amount of DNA in a human individual?

  84. science

    1 what is cell wall? 2 what is cytoplasm? 3what is cell made up of? 4 who discovered cell and how? 5 How do subtances move out of the cell?

  85. Biology

    a. A human cell is placed in a container of sugar water. Explain what would occur, if the cell membrane is impermeable to sugar. I know that the water in the cell is the high concentration and will go to the sugar water which is the low concentration. b.

  86. Chemistry

    1) Assume that the reference half-cell is changed to a standard mercury-mercury (II) half-cell. a) What would be the reduction potential of a standard chlorine half-cell. c) What would be the cell potential of a standard chlorine-nickel cell. 2) For each

  87. Biology

    Which of the following cells check for during the G2 check point? a. Growth hormone c. DNA integrity b. Nutritional status d. Cell size In mitosis, if a cell has 4 chromosomes in prophase, how many chromosomes will this cell have in metaphase? a. 64 b. 32

  88. biology

    need help few questions 1. a signaling cell produces a signal that is detected by what type of cell? 2. If the interior of a typical cell is negatively charged, what type of charged ions will not require energy to diffuse into the cell using an ion

  89. science

    need help few questions 1. a signaling cell produces a signal that is detected by what type of cell? 2. If the interior of a typical cell is negatively charged, what type of charged ions will not require energy to diffuse into the cell using an ion

  90. science

    need help few questions 1. a signaling cell produces a signal that is detected by what type of cell? 2. If the interior of a typical cell is negatively charged, what type of charged ions will not require energy to diffuse into the cell using an ion

  91. chemistry

    I did a lab using an electrochemical cell to establish a relationship between cell potential and concentration. I derived two equations from lines of best fit. One is Cell potential of Ag vs. Cu Concentration: y = -0.04520x+0.5515. The other is cell

  92. ChemISTRY (WEBWORK)

    A student measures the potential for cells containing A+B+and C+ ions and their metals and records his data in the table below: ............. Overall Reaction ................Potential (V) Cell#1'''''''A(s) A+(aq) B+(aq) B(s)''''''''''''0.90

  93. Biology (Answer ASAP Please)

    ok i need help with this like ASAP. Please math the following terms to their corresponding cell structure Cytoplasm [ K ] Flagella [ H ] Smooth Endoplasmic Reticulum [ ] Cilia [ ] Mitochondria [ ] Golgie Apparatus [ ] Chromosones/Genes [ N ] Rough

  94. Biology

    If there are 12 chromosomes in an animal cell in interphase of the cell cycle, what is the diploid number of chromosomes for this organism? A) 6 B) 24 C) 36 D) 12 E) 48

  95. Science

    What is the function of a cell wall? 1.to protect and sopport the cell****** 2.To perform different functions I’m each cell 3.To prevent water from passing through the cel 4.to prevent oxygen from entering the cell

  96. science

    When a beta particle strikes a living cell, __________? A. the beta bounces off B. the cell is not affected C. the cell may cease to function D. it causes the cell to split E. a chain reaction occurs c

  97. Biology

    The average human cell that is capable of dividing has a cell cycle of 20 hour. How many cells would there be in one week if they start with one cell at time zero?

  98. BIology

    A cell cycle is exposed to intensive UV irradiation that results in damage to the cells DNA. Shortly after UV exposure, the cell receives signals telling it to undergo cell division. What are the most likely next events to occur in the cell? A- The cell

  99. Biology

    During the cell cycle, if the cell detects that mistakes have been made in replication, the cell may die by apoptosis. True/False

  100. science

    A student observed two different types of cells under a microscope. She noticed that one cell had many more mitochondria than the other. What can the student predict about the cell with more mitochondria? A. The cell produces more waste. B. The cell makes

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