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
Leto [7]
3 years ago
13

The current theory of the structure of the plasma membrane is best described by the what model

Biology
1 answer:
Nonamiya [84]3 years ago
8 0

Answer:

The fluid mosaic model

Explanation:

The fluid mosaic model describes the structure plasma membrane as a flexible barrier that contains various different components (a mosaic). These components include the phospholipid bilayer, as well as the proteins and other lipids and carbohydrates that are embedded in it. These different components give the membrane its fluid characteristics.

You might be interested in
Which type of molecule will require energy to cross the cell membrane? Question 3 options: A) carbon dioxide B) Na+ C) nonpolar
timofeeve [1]

Answer:

B) Na+

Explanation: Na+ molecule is polar, oxygen and carbon dioxide are nonpolar molecules. The cell membrane is a <em>phospholipid bilayer</em> made up of lipid molecules with polar and nonpolar ends. Since it is a bilayer, two phospholipid layers are arranged, one on the other in such a way that one faces the back of the other. The non polar ends are away from outside and inside of the cell, while  the polar ends faces towards all the molecules inside and outside the cell.

Since polar-polar molecules repel each other, Na+ can't pass through the cell membrane easily. So it uses the proteins attached the cell membrane inside and outside to transport such molecules by using energy in terms of ATP.

3 0
3 years ago
How is water evaporated around the world
Lady bird [3.3K]
Heat causes evaporation

3 0
3 years ago
What reaction is degradative
Korolek [52]

Simple sugar dehydration–fragmentation products, such as derivatives of furans, pyrones, cyclopentenes, carbonyl compounds, or acids

---

please brainliest :)

6 0
2 years ago
Read 2 more answers
use the following paragraph to answer the question 1 throught 5 remember to include units in your answers
VLD [36.1K]

Answer:

Explanation:

1.       a) A topic sentence is a sentence that conveys the meaning and main message of a paragraph. Here is a topic sentence for this paragraph: An ocean beach is a great place for relaxing and enjoying nature. b) But the dog was still growling, afraid of the strange noise.

2.       There are many things to look for when proofreading, but these four would be the most important: spelling, grammar, punctuation, sentence structure. Spelling mistakes are common not only because people often don’t know how to properly write a word (for example, writing “they’re” instead of “there”), but because it is so easy to make a lapse when writing fast. Grammar errors include verb tense errors, subject-verb agreement errors, etc. Punctuation rules prescribe where to write a comma, dot, colon, semicolon, or any other punctuation mark. Finally, sentence structure is often a problem, even for the advanced speakers of a language.

3.       a) Cliché can be a word or a phrase, or even a whole sentence that has been used so frequently, by so many people, that it is devoid of meaning. It usually happens with expressions that have recently become widely accepted and popular. b) It’s such a pity you couldn’t see him on the battlefield. He was brave as a lion.

4.       Brainstorming is a prewriting practice that we use when we want to come up with as many ideas as possible. We jot down, in short phrases or bulleted points, everything that comes to our mind. The point is that every idea is worth having – so we don’t cast away either of them. Eventually, we will review those ideas, and pick those that seem to be the best. Another practice would be freewriting. We do it when we want to find an inspiration. It is different from brainstorming in that we don’t jot down ideas, but our stream of thoughts – however irrelevant or incongruent they might seem. It is a technique used by great writers such as James Joyce, or Virginia Woolf.

5.       d) When cleaning up a cluttered room, one has to do one thing at a time. First, I have to think hard and realize that I don’t really need half of those things that are scattered everywhere. Then, I try to collect all the garbage and put it in disposal bags. After that, it’s time to get rid of all the dust and cobweb. In comes the vacuum cleaner, and that is usually the end of it.

6.       e) Humanity is a few millennia old. But never did it change more quickly than in the past few decades, with the advancement of technology. It has brought an unprecedented revolution in communication. Things that had been unimaginable, such as talking to a friend at the other side of the globe, are now a normal, everyday thing. This privilege is cheap and affordable to the great majority of the people. However, technology has created a very paradoxical situation. By making the communication swifter, easier, and more efficient than ever, it has downgraded its quality and profundity. It has become utterly normal to see silent and isolated family members at a dinner table, who don’t talk to each other, but stare at their cell phones, talking to their virtual friends and sending them photos of the meals.

7 0
2 years ago
Consider the classification levels of a honey bee.
lesantik [10]
The answer is B.) Insecta.
7 0
3 years ago
Read 2 more answers
Other questions:
  • If you had a fruit tree that bore little fruit, you might try to _____. graft the scion onto a good rootstock cut a section of t
    5·2 answers
  • Asexual reproduction requires?
    5·1 answer
  • What is synapse ? explain.
    8·1 answer
  • Name a hormone secreted by the thyroid gland that acts to lower blood calcium
    5·1 answer
  • Would you expect to find leaf eating beetles and bark eating beetles in the same communities
    14·1 answer
  • The result obtained from an experiment
    14·2 answers
  • HELP PLZZZZZZZZZZZZZZZZ
    9·1 answer
  • (Urgent please answer!!) What molecule holds the code for controlling what a cell does
    5·1 answer
  • Identify the stages of the water cycle where water moves downward from the force of gravity.
    8·1 answer
  • As filtrate moves through the ______________in mammals, it generally undergoes a dramatic decrease in osmolarity.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!