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
Alexeev081 [22]
3 years ago
13

2.

Biology
1 answer:
Ronch [10]3 years ago
4 0

Answer: A fluid phospholipid bilayer with embedded proteins.

Explanation: Biological membranes are composed of phospholipids that interact with each other to form a bilayer in which proteins are embedded. Phospholipids have the fatty acyl chains (hydrophobic tails) which face each other to form the interior of the bilayer, while their polar head groups face the outward environment interacting with water molecules. The fluid mosaic model for structure of biological membranes is due to the interactions between the hydrophobic tails of the lipids. The fatty acyl chains of the phospholipids (nonpolar/ hydrophobic tails) in the interior of the membrane form a fluid hydrophobic region while the integral proteins float in the sea of these lipids. The proteins and lipids move freely and laterally in the plane of the bilayer, but movement there is restriction in the movement from one face of the bilayer to the other. The proteins are embedded at regular intervals and are held by hydrophobic interactions between the membrane lipids and the hydrophobic regions of the proteins.

The membrane mosaic is fluid because most of the interactions among its components are noncovalent, thereby leaving the lipid and protein molecules free to move laterally in the plane of the membrane.

You might be interested in
Water is a polar molecule, how is it able to cross the plasma membrane?
nlexa [21]

Answer:

It would be Active transport.∞←

Explanation:

5 0
3 years ago
What is represented by<br> region on the sound<br> wave
elena-s [515]

Answer:

Compressions and Rarefactions

<em>A vibrating tuning fork is capable of creating such a longitudinal wave. As the tines of the fork vibrate back and forth, they push on neighboring air particles. The forward motion of a tine pushes air molecules horizontally to the right and the backward retraction of the tine creates a low-pressure area allowing the air particles to move back to the left.</em>

Explanation:

These regions are known as compressions and rarefactions respectively. The compressions are regions of high air presure while the rarefactions are regions of low air pressure.

<em>Sound waves can also be shown in a standard x vs y graph, as shown here. This allows us to visualise and work with waves from a mathematical point of view. The resulting curves are known as the "waveform" (i.e. the form of the wave.) The wave shown here represents a constant tone at a set frequency.</em>

8 0
3 years ago
A popular pesticide used in both world wars was what
marin [14]
DDT, or dichlorodiphenyltrichloroethane
3 0
2 years ago
22. What part of its life cycle is our sun in?
Artyom0805 [142]

Answer:

The Sun, like most stars in the Universe, is on the main sequence stage of its life, during which nuclear fusion reactions in its core fuse hydrogen into helium. Every second, 600 million tons of matter are converted into neutrinos, solar radiation, and roughly 4 x 1027 Watts of energy

Explanation:

8 0
3 years ago
Donald has been diagnosed with hyperlipidemia. on the basis of his lipid profile, atorvastatin is prescribed. rhabdomyolysis is
Sergeu [11.5K]
A. Become a vegetarian since this disorder is associated with eating red meat
B. Stop taking the drug if abdominal cramps and diarrhea develop
C. Report muscle weakness or tenderness and dark urine to his provider immediately
<span>D. Expect "hot flash" sensations during the first two weeks of therapy</span>
6 0
3 years ago
Other questions:
  • Where in the Milky Way are new stars being formed?
    12·2 answers
  • List nine major types of water pollutants and give an example of each apes
    5·1 answer
  • On a topographic map, the elavation of an area with contour lines that are very far apart is _______.
    10·2 answers
  • Eversion is performed by which of the following muscles?
    6·1 answer
  • Eating local food is often considered a way to "go green" and help the
    11·2 answers
  • The primary function of the proximal tubule is
    8·1 answer
  • What is it meant by optimum temperature? In other words, how is the enzyme functioning below and above optimum temperature?
    6·1 answer
  • B<br> Freeeeeee points hahaha
    9·2 answers
  • Which part of the female reproductive system is highlighted below?
    12·2 answers
  • In all reptiles, birds, and mammals, the processes of excretion, water and salt balance,
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!