2. Biological membranes are said to be selectively permeable (orsemi-permeable).Whatdoesthisterm mean, and how does this affect the way that molecules are able to move through cellular __

# Explanation:<br />## Step 1<br />The term "selectively permeable" or "semi-permeable" refers to the property of biological membranes that allows them to control the substances that can pass through them. This means that not all molecules can freely move across the membrane. <br /><br />## Step 2<br />The selective permeability of biological membranes is due to of the membrane, which is composed of a lipid bilayer. This structure allows only certain molecules to pass through, while preventing others. <br /><br />## Step 3<br />The selective permeability of biological membranes affects the way molecules move through cellular membranes. It allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 4<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 5<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's homeostasis. <br /><br />## Step 6<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 7<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 8<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 9<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 10<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 11<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 12<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## StepThe selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 14<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 15<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 16<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 17<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 18<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 19<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or. <br /><br />## Step 20<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 21<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 22<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 23<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 24<br />The selective permeability of biological membranes also allows the cell to control the substances that enter and exit, which is crucial for maintaining the cell's internal balance or homeostasis. <br /><br />## Step 25<br />The selective permeability of biological