| 1..The plasma (cell) membrane | is composed of a bilayer of proteins |
| | is composed of a bilayer of phospholipids |
| | is composed of chains of carbohydrate molecules |
| | is a compl;ex of carbohydrates and proteins |
H..Which of the following is not a function ofmembrane proteins?
| | act as carrier molecules for various solutes |
| | cell nutrient |
| | act as anchors or stabilizers for the cell membrane |
| | regulate the passage of ions |
| | bind to ligands |
I...The control center for cellular operations is the
| | mitochondria. |
| | Golgi apparatus. |
| | endoplasmic reticulum. |
| | nucleus. |
| | ribosome. |
J.During the G1 phase of the cell cycle:
| | growth and normal metabolism occur |
| | the DNA replicates |
| | the nuclear membrane disappears |
| | the centrioles separate |
K..Crenation of a cell may occur when it is placed ina(n)________ solution
| | neutral |
| | isotonic |
| | hypertonic |
| | hypotonic |
