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
sertanlavr [38]
3 years ago
6

Semipermeable cell membranes are made of phospholipids that form a bilayer. What major benefit does this arrangement of the memb

rane provide to the cell?
a. The cell is able to easily change shape and size
b. Both surfaces of the membrane are nonpermeable
c. The cell has a greater level of structural support
d. Both surfaces of the membrane can interact with water and other molecules.
Biology
2 answers:
Andrej [43]3 years ago
5 0

Answer:

The correct answer would be c. The cell has a greater level of structural support.

Phospholipds are the structural units of a cell membrane. They are consist of two components; hydrphobic lipids and hydrophylic polar heads.

They make a bilayer structure in which polar heads are in contact with water and lipid part are embedded within the layer.

  • Lipid bilayer gives the rigidity or shape to the cell.  
  • It isolates the cell from the sorroundings.
  • It is semi-permiable in nature and thus prevents or control the movement of substances across the membrane.
  • Being liquid in nature, the cytoplasm would have dispersed in the surrounding in absence of cell membrane.

Hence, most appropriate choice would be c. The cell has a greater level of structural support.

MaRussiya [10]3 years ago
5 0

Answer:

The correct answer is D) Both surfaces of the membrane can interact with water and other molecules.                                                                                                                                                                

Explanation:

Phospholipids provide barriers in cellular membranes to protect the cell, and they make barriers for the organelles within those cells.

Phospholipids work to provide pathways for various substances across membranes. Membrane proteins stud the phospholipid bilayer; these respond to cell signals or act as enzymes or transporting mechanisms for the cell membrane.

The phospholipid bilayer readily allows essential molecules such as water, oxygen and carbon dioxide to cross the membrane, but very large molecules cannot enter the cell in this way or may not be able to at all.

Cheers!

 

You might be interested in
Scientists have discovered homeotic genes in many kinds of organisms, including fruit flies, mice, and humans. These homeotic ge
love history [14]

Answer:

D

Explanation:

The presence of homeotic genes shows that all of the listed organisms (mice, flies, humans etc) all evolved from a common ancestor.

(A) is wrong as the evidence of the same gene existing in vastly different species shows the evolutionary relationship between these organisms.

(B) is wrong as there is insufficient evidence to prove that flies are the precessor of humans. We do know that flies and humans have evolved from a common ancestor though.

(C) is non-conclusive as the passage said nothing about the gene allowing the species to have a higher chance of surviving and reproducing. Hence, an errornous claim.

(D) is the correct answer as from a common ancestor, all of the listed organisms undergo and accumulates mutation, undergoes selective pressures that resulted in divergent evolution (aka branching evolution that results in many noval species forming) after millions of years.

6 0
3 years ago
Edmond's diet consists mostly of hamburgers, french fries, and other fast food items. He does not exercise often and lives a sed
kherson [118]

Answer:

The answer is B.

5 0
3 years ago
Permeable rock layers or sediments that transmit ground water freely are called ___.
bearhunter [10]
B, Aquifers, hope this helps
5 0
3 years ago
Read 2 more answers
Which of the following is a benefit of dams?
Paladinen [302]
The answer is A) they provide a source of energy.
4 0
3 years ago
Read 2 more answers
True or false The sea otter is considered a keystone species that influences the survival of many other species in an ecosystem
jonny [76]

Answer:

false

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Information gathered from observing a plant grow 3 cm over a two-week period
    14·1 answer
  • true about niches? I. New species can outcompete native species to fill a niche. II. Extinction or emigration of a species can l
    6·1 answer
  • What does DNA control ?
    6·1 answer
  • A scientist wants to perform a test that will indicate whether a nucleic acid sample is composed of RNA or DNA. Testing for the
    12·1 answer
  • Students use a microscope to look for structures present in four different cells. The students placed an X for each structure th
    11·1 answer
  • A always pairs with ______
    12·2 answers
  • Hello, I know this is a very weird question, But this is for school and we have to take an essay on it. So please be mature when
    12·1 answer
  • Select the correct statement about gene flow.
    13·1 answer
  • 7. The picture below shows a common angiosperm. Name three adaptations this plant has that allow it to live on land. (6 points)
    8·1 answer
  • 3. The table below shows factors that could be present in a population. Next to each factor,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!