1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Luda [366]
3 years ago
5

Background: Cells are so small that their existence went unnoticed until the microscope was invented. The microscope allows scie

ntists to examine the cellular makeup of living organisms for the first time. A question that arises is: why are cells so small? Is there a factor that limits the size of a cell? In this lab, you will investigate the possibility that diffusion of nutrients into the cell may be a limiting factor on cell size. In this lab, you will work with raw potatoes, cut into cubes to mimic a working model of a cell. You will cut the potatoes into cubes of p QQ1re-determined size and then place the cubes in a dish containing a food-coloring solution. When the food coloring diffuses into the potato, it will produce a visible stain. After incubating all potato cubes that are simulating cells in a food-coloring solution for the same time period, you will slice open each of them to determine how far the food coloring diffused. By comparing the distance that the food-coloring diffuses into each size of cell that you make, you will be able to draw conclusions about whether the rate of material transport may be one of the limiting factors on cell size. Question How does cell size affect the rate of diffusion of materials into a cell? Materials
Biology
1 answer:
larisa [96]3 years ago
5 0

When the cell increases in size, the volume increases faster than the surface area, because volume is cubed where surface area is squared. When there is more volume and less surface area, diffusion takes longer and is less effective.

You might be interested in
Molecules "pumped" in or out from low to high concentration
Crazy boy [7]
That would be active transport
5 0
3 years ago
What is the longest period of time anyone has gone without oxygen
Snowcat [4.5K]
The longest period of time is 11 minutes and 35 seconds.
8 0
4 years ago
Read 2 more answers
Gametes, or sex cells, are created by a special cell division process called______.
Lelechka [254]
Meiosis! :) Hope this helped
8 0
3 years ago
Read 2 more answers
Animals like sea turtles and dolphins would be found in the neritic zone.<br> T or F
Lelechka [254]

Answer:

T ~ True

Explanation:

The neritic zone is the region of shallow water (200 meters depth) above the continental shelf where light penetrates to the sea floor. Due to the abundant supply of sunlight and nutrients in this zone, it is the most productive ocean zone supporting the vast majority of marine life. As a result, many organisms that require light for photosynthesis can live in this zone, including seaweeds and phytoplankton. Most coral reefs are also found in the neritic zone. ... Swimming organisms in the pelagic zone include dolphins, whales, squid, and numerous species of fish adapted to life at different depths.

7 0
3 years ago
Read 2 more answers
Which of the following methods results in active acquired immunity?
tatyana61 [14]
The answer is Vaccination. 
Acquired or adaptive immunity is the body's third line of defense. This is protection against specific types of pathogens. Acquired immunity may be either natural or artificial in nature. Both natural and artificial immunity have passive and active components. Active immunity results from an infection or an immunization, while passive immunity comes from naturally or artificially gaining antibodies.
4 0
3 years ago
Other questions:
  • As you look under a microscope you see a nucleus with a large density of nucleolus. What inference can you make about that cell?
    7·2 answers
  • Which life process is necessary for the survival of a species but not necessary for the survival of the individual organism?
    7·1 answer
  • 3 characteristics used to classify trees?
    7·2 answers
  • What has been produced in the drawing below?
    14·1 answer
  • What was one of the ways that people of ancient times classified plants and animals?
    15·1 answer
  • A genetic trait is inherited via the Y chromosome such that for a father with the trait, his male offspring have a 25% chance of
    9·1 answer
  • What determines the genotype of an organism?
    13·2 answers
  • What is represented by<br> region on the sound<br> wave
    14·1 answer
  • Examples of sucrose? ​
    7·1 answer
  • An increase in the membrane permeability for a solute will result in an increase in the driving force for diffusion of that solu
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!