Observation of Diffusion Rate in Relation to Cell SizeAs you have observed, cells are small. Consider your little toe: it is made of about 2-3 billion
cells! A newly-made cell will grow, but once it reaches a certain size it will divide to form two
new cells rather than growing bigger. Why is this? Why aren't you made of a few dozen, or a
few hundred cells, instead of trillions? Why don't single-celled organisms like amoebas and paramecia grow
as big as a human? In this lab, we will investigate this question using model cells.

Answers

Answer 1

Answer:

Explanation:

new cells rather than growing bigger. Why is this ?

There are two main reasons why cells divide rather than continuing to grow larger and larger: ... If the cell grows too large, it will have trouble moving enough nutrients and wastes across the cell membrane. Cell Division. Cell division is the process by which cellular material is divided between two new daughter cells.

Why aren't you made of a few dozen, or a

few hundred cells, instead of trillions?

if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. When this happens, the cell must divide into smaller cells with favorable surface area/volume ratios, or cease to function. That is why cells are so small.

Why don't single-celled organisms like amoebas and paramecia grow

as big as a human? again The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.

i belive this is just the introduction to the project but here

Related Questions

When adult amphibian skin harbors populations of the bacterium, Janthinobacterium lividum (Jl), chytrid infection seems to be inhibited. Which of the following represents the best experimental design to test whether this inhibition is real?A) Inoculate uninfected amphibians with Jl, and determine whether the amphibians continue to remain uninfected by chytrids.B) Inoculate infected amphibians with Jl, and determine whether the amphibians recover from infection by chytrids.C) Take infected amphibians and assign them to two populations. Leave one population alone; inoculate the other with Jl. Measure the rate at which infection proceeds in both populations.D) Take infected amphibians and assign them to two populations. Inoculate one population with a high dose of Jl; inoculate the other with a low dose of Jl. Measure the survival frequency in both populations.
The euglena's red eyespot is used for _____. detection of danger detection of light photosynthesis binary fission
Select all that apply. Characteristics of mitosis include _____. a.) the most common kind of cell division b.)four daughter cells produced when parent cell divides c.)same number of chromosomes in each daughter cell as in the parent celld.)different DNA in the daughter cell than in the parent cell
In what ways are the three groups of amphibians similar different
Select all that apply. Meiosis is associated with the _____. diploid number of chromosomes haploid number of chromosomes autosome cells gamete cells

How does natural selection support the theory of evolution?A. Natural selection explains how the changes in life forms that evolve over millions of years take place over shorter periods of time.
B. Natural selection explains how certain life forms are able to survive and reproduce after changes in their environmental conditions.
C. Natural selection comes from the collection of fossil record data that shows how life forms.

Answers

The way natural selection supports the theory of evolution is because it explains how certain life forms are able to survive and reproduce after changes in their environmental conditions.

The answer is B, because natural selection is when some organisms die off due to changes in the environment and inability to adapt.

The most common energy carry molecule in the cell is

Answers

Carbohydrates actually get stored in the form of long polymers of glucose molecules or as glycogen starch. They provide energy to the animals for performing their daily duties. Carbohydrates are generally considered the fuel for all organisms, and without this most animals would become sloth and would be unable to perform the regular jobs. Carbohydrates are actually very easy to metabolise and hence generate quick energy.

Genetic exchange between organisms living at the same time in the same environment is considered to be ____.

Answers

Final answer:

The exchange of genetic material between organisms living at the same time in the same environment is known as horizontal gene tratransfer. This process, along with gene flow, contributes to genetic diversity and reduces the risk of extinction.

Explanation:

Genetic exchange between organisms living at the same time in the same environment is considered to be Horizontal gene transfer. This concept involves the introduction of genetic material from one organism to another within the same generation. It is different from vertical gene transfer, which is the transmission of genetic information from generation to generation. Horizontal gene transfer allows even distantly related species to exchange genes, impacting their phenotypes. Gene flow is another related concept, which involves the exchange of genetic material between populations, contributing to genetic diversity and reducing the risk of extinction.

Learn more about Horizontal gene transfer here:

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During ____ of meiosis, sister chromatids are seprated and pulled to opposite ends of the cell

Answers

It is during anaphase I of miosis that the sister chromatic are separated and pulled to the opposite sides of the cell

What is the most efficient procedure that scientists can use to obtain more recombinant DNA for a particular trait?

Answers

the most efficient procedure that scientist can use to obtain more recombinant dna for a particular trait is : Clone the recombinant dna in a biological vector. This method will give more assurance that they will get the traits that they wanted form the subjects

hope this helps

i think the answer is C. for e2020.

Saguaro cacti, elf owls, horned lizards, and fire ants all share the same area of a desert. Which of the following groups is a population?all of the species living in that area of the desert
all of the fire ants living in that area of the desert
all of the plants growing in that area of the desert
all of the elf owls, horned lizards, and fire ants living in that area of the desert

Answers

Answer:

all cacti in the same area just took the test

Explanation:

Answer:

all of the fire ants.

Explanation: i took the quiz

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Most energy enters ecosystems in the form of sunlight.true or false