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
Finger [1]
3 years ago
13

What is a cell membrane and describe its structure and components.

Biology
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

Cell membrane or plasma membrane is the semi-permeable outer layer surrounding the components of the cell.

It is important to the cell as it provides important properties to the cell as it separates the aqueous interior of the cell from the external environment, helps in cell–cell contact, in surface recognition, signaling and transport.

The plasma membrane is made up of different types of molecules like phospholipids, proteins, cholesterol, carbohydrates providing flexibility to the layer so, the model of membrane is known as fluid mosaic model.

The primary constituent of membrane is a lipid molecule called Phospholipids which is made up of glycerol molecules attached to a phosphate group and forms a hydrophilic head while long fatty acyl chains attached to the head froms hydrophobic tails.

It is the fatty acid chains which provide hydrophobic nature to the cell membrane. These layers are arranged in the form of bilayer with head towards outside while tails inside.

Along with phospholipid membrane posses peripheral and integral proteins which helps in transport of the molecules across membrane.

You might be interested in
Create some predictions to support the sunflowers in the future?
Oksi-84 [34.3K]

Answer:

The humble sunflower appears not quite of this earth. Its yellow crowned head sits atop its stalk like a green broomstick. Its seeds, arranged in a logarithmic spiral, are produced by tiny flowers called disc florets that emerge from the center of its head and radiate outward. But aside from being a biological marvel, the sunflower is also often in the scientific spotlight.

From understanding how new plant species emerge to studying “solar tracking,” which is how the flowers align themselves with the sun’s position in the sky, sunflowers are a darling in the field of science. However, researchers can only get so far in understanding a plant without detailed genetic knowledge. And after close to a decade, it has finally unfurled itself.An international consortium of 59 researchers who set their sights on the laborious task of sequencing and assembling the sunflower’s genome published their results in a 2017 study in Nature. This achievement will provide a genetic basis for understanding how the sunflower responds and adapts to different environments. “We are on the cusp of understanding sunflower adaptability,” says Loren Rieseberg, a leading sunflower expert at the University of British Columbia and a supervisor of this study.

With its genome assembled, scientists are hopeful for the next phase of the sunflower’s scientific career: as a “model crop” for studying climate adaptability in plants. This task is more complex and urgent now than ever. Climate change, according to a paper in the Annals of Botany, “will influence all aspects of plant biology over the coming decades,” posing a threat to crops and wild plants alike.

5 0
3 years ago
The examination of blood film should be performed at _____ to detect microfilariae.
amid [387]

Answer:

Night

Explanation:

Usually, a microfilariae blood test is conducted at night to coincide with the appearance of microfilariae.

8 0
2 years ago
Bob...........................
Pepsi [2]
The builder can he fix it
5 0
3 years ago
How does adp convert to atp
Dimas [21]
<span>1 phosphate group is added to ADP, and energy is required. ATP is formed</span>
6 0
3 years ago
Read 2 more answers
What are the consequences of coastal pollution?
salantis [7]

Answer:

1. Damage to Mangrove Ecosystems and Coral Reefs.

2. Coast Damage.

3. Death of Biological Resources.

Explanation:

pollution itself is bad

8 0
3 years ago
Other questions:
  • Study the teeth in Figure 27-7. What kind of diet are these teeth adapted for?
    13·2 answers
  • Based on the clues in this passage, what does quizzi
    11·2 answers
  • What is the best definition of a population
    7·1 answer
  • What short term objectives are required for tesla to survive?
    5·1 answer
  • Barium metal has a body-centered cubic lattice with all atoms at lattice points; its density is 3.51 g/cm3. From these data and
    11·1 answer
  • The scales of female pine cones produce a sticky substance. what function might this serve?
    15·1 answer
  • Which correctly compares the immunity produced by a vaccine with the immunity produced by injection of antibodies from an extern
    15·2 answers
  • Why is matter important to cycles of nature?
    15·2 answers
  • Brainlist and 50 pnts for best anwser!! describe the main organs and components of the nervous system
    6·2 answers
  • Describe the difference between a organism that is a consumer and an organism that is a producer
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!