Question

Cell membranes are mainly composed of 2 layers of ______________.

Answer 1

Cell membranes are composed of proteins and lipids. Since they are made up of mostly lipids.

Answer 2

The cell membrane regulates which materials are allowed to enter and exit a cell by allowing some materials into the cell, but not everything, making it ________.

Answer 3

Cell membranes act as barriers to most, but not all, molecules. Development of a cell membrane that could allow some materials to pass while constraining the movement of other molecules was a major step in the evolution of the cell. Cell membranes are differentially (or semi-) permeable barriers separating the inner cellular environment from the outer cellular (or external) environment.

Answer 4

Cell membranes act as barriers to most, but not all, molecules. Development of a cell membrane that could allow some materials to pass while constraining the movement of other molecules was a major step in the evolution of the cell. Cell membranes are differentially (or semi-) permeable barriers separating the inner cellular environment from the outer cellular (or external) environment.

Answer 5

There are 2 structures that give support to cells. The _________ gives support from inside the cell and is made up of microtubules and microfilaments. The _____gives support from outside the cells and is made up of specialized proteins.

Answer 6

https://quizlet.com/20629727/unit-2-cell-structures-and-their-functions-flash-cards/ use this it will help u

Answer 7

https://quizlet.com/20629727/unit-2-cell-structures-and-their-functions-flash-cards/ use this it will help u