bio

posted by .

The cell membrane is a highly selective barrier that controls the movement of substances in and out of the cell. In fact, polar molecules are unable to go across unless


A. they are enclosed in water-filled vesicles.

B. they pass through channels in the cell membrane.

C. they are broken down into smaller pieces.

D. they react with other substances to become nonpolar.

  • bio -

    It's B I Got This Question On Study Island And Listened To This Guy Above And Got It Wrong. Its B

  • Bio -

    Marissia is correct. It is B.

  • bio -

    B. they pass through channels in the cell membrane.

  • bio -

    B
    Any one who says different, either
    1) doesn't know what they are talking about
    or
    2)
    just want to watch you get it wrong.

    If you want to answer a question like this please research before you post so that way other people will get it right.
    Thanks! :)

  • bio -

    i got D

  • Biology -

    Water is a polar molecule so it can go through the cell membrane but only by the openings/channels. So the answer is B and I also had this question on Study Island.

  • bio -

    the answer is D i just had it on study island

  • bio -

    I got B

  • bio -

    The reason people are getting B & D is because Study Island changes answer order. Also, you shouldn't be posting Study Island Question online. You don't know who is giving you the answer, you should ask your teacher to explain if you don't understand.

  • bio -

    ANSWER: they pass through channels in the cell membrane

  • bio -

    i got c

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. AP Biology

    Cells transport substances across their membrane. Choose THREE of the following four types of cellular transport Osmosis Active transport Facilitated diffusion Endo/exocytosis For each of the three transport types you choose, a. Describe …
  2. bio

    cell's digestive enzymes are enclosed in a membrane-bound organelle how can these molecules fuction in the cell?
  3. Biology

    All cell are surrounded by membranes. The main role of the cell membrane is to A.regulate the cell's interactions with the environment b.release any type of molecule out of the cell c.arrange the cell's organelles in the cytoplasm …
  4. Biology

    All cell are surrounded by membranes. The main role of the cell membrane is to A.regulate the cell's interactions with the environment b.release any type of molecule out of the cell c.arrange the cell's organelles in the cytoplasm …
  5. Biology

    The cell membrane is a highly selective barrier that controls the movement of substances in and out of the cell. In fact, polar molecules are unable to go across unless
  6. Science

    Which of the following best describes an aspect of a membrane's molecular structure that causes it to be selectively permeable?
  7. science

    Hi,here is a text I saw on the Internet "The membrane is highly permeable to non-polar (fat-soluble) molecules. The permeability of the membrane to polar (water soluble) molecules is very low. The permeability to charged molecular …
  8. a n p

    which structure regluates the transport of substances in and out of a cell?
  9. Science

    a. A human cell is placed in a container of sugar water. Explain what would occur, if the cell membrane is impermeable to sugar. b. Another cell is placed into a container of sugar water. However, this cell has the capability to allow …
  10. Biology

    1.,you drink salty beverages (clams to) and eat pretzels all day. At the end of the day your weight is way up. Why?

More Similar Questions