[#142] How many cells are you? How many cells in a human? Assume that cells have a typical size of about 10 um (1um = 10-6 m) in all directions. And that we are the same density as water, and are made completely of cells (both exaggerations, of course, but fine for an order of magnitude estimate). Hints: What is the volume of a cell? What is the volume of a human? How can these quantities be related to give the number of cells in your body? The shape of the cell is not important in this rough estimate: for instance, the difference in volume fraction between say cubes and close packed spheres is only 26%. Format: When you enter your answer, enter it as a power of 10. For example: for 100000, enter "10^5". We'll use this notation later, too.
[#142] How many cells are you? How many cells in a human? Assume that cells have a typical size of about 10 um (1um = 10-6 m) in all directions. And that we are the same density as water, and are made completely of cells (both exaggerations, of course, but fine for an order of magnitude estimate). Hints: What is the volume of a cell? What is the volume of a human? How can these quantities be related to give the number of cells in your body? The shape of the cell is not important in this rough estimate: for instance, the difference in volume fraction between say cubes and close packed spheres is only 26%. Format: When you enter your answer, enter it as a power of 10. For example: for 100000, enter "10^5". We'll use this notation later, too.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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![[#142] How many cells are you?
How many cells in a human? Assume that cells have a typical size of about 10 um (1um = 10-6 m) in all directions. And that we are the same density as water, and are
made completely of cells (both exaggerations, of course, but fine for an order of magnitude estimate).
Hints: What is the volume of a cell? What is the volume of a human? How can these quantities be related to give the number of cells in your body? The shape of the cell is
not important in this rough estimate: for instance, the difference in volume fraction between say cubes and close packed spheres is only 26%.
Format: When you enter your answer, enter it as a power of 10. For example: for 100000, enter "10^5". We'll use this notation later, too.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6cdc9713-fb2b-4ba7-813b-fd9b4716964c%2F5aab0f7f-a6f5-4605-b2c6-466eeeb2f671%2Fohdbmq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:[#142] How many cells are you?
How many cells in a human? Assume that cells have a typical size of about 10 um (1um = 10-6 m) in all directions. And that we are the same density as water, and are
made completely of cells (both exaggerations, of course, but fine for an order of magnitude estimate).
Hints: What is the volume of a cell? What is the volume of a human? How can these quantities be related to give the number of cells in your body? The shape of the cell is
not important in this rough estimate: for instance, the difference in volume fraction between say cubes and close packed spheres is only 26%.
Format: When you enter your answer, enter it as a power of 10. For example: for 100000, enter "10^5". We'll use this notation later, too.
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