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
jolli1 [7]
3 years ago
14

Which characteristics makes a cell membrane selectively preamble

Biology
2 answers:
Brrunno [24]3 years ago
8 0

Cells are selectively permeable due to the Phospolipid Bilayer. It allows only certain molecules to pass through. The cell membrane is made of two sheets of phosolipid bilayers

Ganezh [65]3 years ago
5 0

Did you mean permeable?

The hydrophobic center to a cell membrane (also known as a phospholipid bilayer) gives the membrane selective permeability.  If a substance is permeable , something such as water or gas can pass through it or soak.

Some solutes cross the membrane freely, some cross with assistance, and others do not cross at all.

Large molecules do not cross intact cell membranes, except in certain special cases.

You might be interested in
PLEASE HELPPPP THIS IS DISCOVERY EDUCATION 2.5 HEAT A new investigator takes over a project after much of the original notes and
LiRa [457]

Answer:

It’s

800 J

380 calories

1.7 kJ

3500 J

57 kcal

Explanation:

Just got it wrong :(

5 0
3 years ago
As liquid water freezes, the molecules arrange themselves in a way that takes up more space than liquid water. What would most l
Maurinko [17]

Answer;

As liquid water freezes, the molecules arrange themselves in a way that takes up more space than liquid water. What would most likely occur if the arrangement of frozen water molecules required less space than that of liquid water molecules? A).The density of ice would be greater than the density of liquid water, and ice would not float. B). Ice would form in layers, and liquid water would get trapped in between the layers. Liquid water would have a higher specific heat, making it less likely to undergo vaporization. C).The freezing point of water would decrease, making ice more difficult to form.

8 0
3 years ago
A bond of the following elements would be of what type? Ca + 2Cl<br><br> Covalent or ionic
dedylja [7]

Answer:

Ionic

Explanation:

Ionic bond:

It is the bond which is formed by the transfer of electron from one atom to the atom of another element.  

Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.

For example:

calcium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for calcium is 1. There is large difference is present. That's why electron from calcium is transfer to the chlorine. calcium becomes positive and chlorine becomes negative ion.

There are two valance electrons in calcium so it needed to lose two valance electrons to complete the octet while chlorine needed one electron to complete the octet. Thus two electrons lost by one calcium atom are gained by two atoms of chlorine.

Ca + Cl₂ → CaCl₂

7 0
3 years ago
Why are vegetables considered among the most nutritious foods available?
Svetradugi [14.3K]

Vegetables are considered among the most nutritious food available because they have a large amount of minerals and vitamins in them.They do not have fat in them which makes is more nutritious.Besides this every part of vegetable can be utilized whether it is in the form of stem,root,leaves,seed all have some amount of nutrition in them.The nutrition present in vegetables can be derived in multiple ways ,they can be eaten raw or can be cooked.Vegetables are very rich source of vitamins and minerals. They are very rich in anti-oxidants ,which protects the body from cancer.They are also a rich source of iron,phosphorous,multivitamin,etc.

7 0
3 years ago
The failure of the attempt to reintroduce clapper rails in California was an example of the?
antiseptic1488 [7]
The correct answer is  B: Time-consuming process of listing endangered species.
It is an example of a failed attempt to reintroduce clapper rails in California.
The California clapper rail is noted as an endangered species.
Endangered species are plants and animals that are in close danger of being extinct.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Why are mites and ticks the closest relatives of the spider?
    9·2 answers
  • Which of the following is true?
    9·2 answers
  • A star has a mass that is 1/5 that of earths sun. What will happen to the star as it ages? It will become a _____. A. Neutron st
    8·1 answer
  • 20 POINTS WHO ANSWERS CORRECTLY!!!!! biology
    15·2 answers
  • Give a scenario where a cell may need to perform a form of endocytosis
    6·2 answers
  • PLEASE HELP ME Which of the following codes for a specific protein? DNA gene enzyme chromosome Which of the following is single-
    9·2 answers
  • What section of the brain controls the ability to move your right hand?
    14·1 answer
  • A scientist studied the effect of exposing DNA to various wavelengths of ultraviolet light and determined the number of copying
    15·1 answer
  • These animals all have similar
    7·1 answer
  • PLEASE I HAVE UNDER 30 MINUTES!!! (No links)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!