True or false: the plasma membrane

Exercise and reference answers

Questions

1. Statement is true

   No

   Statement

   A plasma membrane lets absolutely everything through.

2. Statement is true

   Yes

   Statement

   A fine needle can pierce a membrane without bursting it.

3. Statement is true

   No

   Statement

   The membrane expands and contracts just like a balloon.

4. Statement is true

   Yes

   Statement

   Red blood cells lack controls on how much water they take in.

5. Statement is true

   Yes

   Statement

   Cholesterol sits among the phospholipids in the membrane core.

6. Statement is true

   No

   Statement

   Carbohydrates are absent from the plasma membrane.

Instructions

Tap True or False for each statement.

Explanation