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
galben [10]
3 years ago
9

Cells transport molecules into the cell in many different ways. One method is through endocytosis, shown in the model. In endocy

tosis, the cell brings specific molecules it needs, including fluid, into the cell. Why does the structure of the plasma membrane make this type of transport necessary for fluids?

Biology
2 answers:
Karo-lina-s [1.5K]3 years ago
6 0

Answer:

While the heads of the phospholipid structure attract water, the tails are hydrophobic. The model shows how the hydrophilic section folds around the fluid molecules to bring them into the cell so they don’t need to pass through the hydrophobic tails.

Fudgin [204]3 years ago
4 0

Answer:

This is because fluids have a polar nature, so they couldn´t cross the lipidic bilayer that constitutes the plasma membrane

Explanation:

Plasma membranes are contituted by lipid bilayers. These kind of compounds are hidrophobic (they reject water) and don´t permit the freely passage of hidriphilic molecules that can disolve in water, constituing fluids. Because of that cells developed transport mechanism like endocytosis.

You might be interested in
Why don’t all water droplets fall to Earth?
mariarad [96]

Answer:

Clouds are made of microscopic droplets of water ranging from 1 to 100 microns. Although, a water droplets total size, water's density is still much greater than air, and over time the earth's gravitational pull should cause the water droplet to fall.

7 0
3 years ago
What would happen to the size of the herbivore population if the producer population decreased?
NNADVOKAT [17]
It would decrease, because the producers are the source of food for the herbivores
5 0
3 years ago
Read 2 more answers
Which types of mutations result in abnormal amino acid sequence?
lakkis [162]
Frameshift mutations

6 0
3 years ago
The one-toed horse of today steadily evolved from its five-toed ancestor.​
Vesnalui [34]

Answer:

It is true that one-toed horse of today steadily evolved from its five-toed ancestor.​

Explanation:

  • Evolution is the law of nature.There is a continuous process of evolution in each biological species in nature.
  • Similarly, horses had 5 toes millions of year back, but according to the theory of gradualism their use decreased and toes started fusing.
  • Now, its only one toe at present but the vestigial left over provides the solid evidence for the fact that horses had 5 toes in the past.
6 0
3 years ago
There are 1000 micrometres (um) in a millimetre (mm).
Vesna [10]

Answer: The length of the cell in millimetres is 0.0015.

Explanation:

Given conversion :

1000\mu m=1mm

Thus 1\mu m=\frac{1}{1000}mm=0.001mm

Given : Length of the cell = 1.5 micrometers (\mu m)

To find: Length of the cell in milllimeters (mm)

Length of the cell in milllimeters (mm) = 1.5\times 0.001mm=0.0015mm

The length of the cell in millimetres is 0.0015.

4 0
3 years ago
Other questions:
  • The special ____________________________________ of the vegetation.
    7·1 answer
  • Which of the following represents the phases of mitosis in their proper sequence
    8·1 answer
  • Are lipids good or bad? Explain.<br> Are lipids good and bad explain
    5·1 answer
  • Which of the following is NOT a characteristic of all living things?
    15·2 answers
  • What are the conditions required for natural selection? Check all that apply.
    12·2 answers
  • The use of wells to obtain drinking water is a modern convenience. Is this true or false?
    6·2 answers
  • State whether the following statements are true or False. Hormones in plants travel by the vascular bundle.​
    13·1 answer
  • Describe the circumstances of a solar eclipse.
    12·1 answer
  • Which of the following describes an
    5·1 answer
  • Classify as man-made or natural extinction: Global Warming
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!