Have an account?
Skip to Content
Build your own quiz
Suggestions for you
17 questions
Show Answers
See Preview
- 1. Multiple Choice
What is the plasma membrane?
Active barrier separating intercellular fluid from extracellular fluid
Rivet-like cell junction formed when linker proteins of neighboring cells interlock
Part of glycocalynx, serving as identification markers for cell recognition
- 2. Multiple Choice
What are integral proteins?
Firmly inserted into membrane
Most are transmembrane proteins
Have both hydrophobic and hydrophilic regions
Function as:
Transport proteins
- 3. Fill in the Blank
Peripheral proteins are _________ attached to integral proteins.
- 4. Open Ended
What are tight junctions?
- 5. Multiple Choice
What are tight junctions?
Integral proteins on adjacent cells fuse to form an impermeable junction that encircles whole cell
Allow give between cells, reduce possibility of tearing due to tension
Found in tissues subjected to great mechanical stress, such as oskin and heart muscle
- 6. Multiple Choice
What are desmosomes?
Rivet-like cell junction formed when linker proteins of neighboring cells interlock like the teeth of a zipper
Transmembrane proteins form tunnels that allow small molecules to pass from cell to cell
Integral proteins on adjacent cells fuse to form an impermeable junction that encircles whole cell
- 7. Multiple Choice
What are gap junctions?
Integral proteins on adjacent cells fuse to form an impermeable junction that encircles whole cell
Rivet-like cell junction formed when linker proteins of neighboring cells interlock like the teeth of a zipper
Transmembrane proteins form tunnels that allow small molecules to pass from cell to cell
- 8. Multiple Choice
What are the two types of membrane transport?
Passive processes
Active processes
ATP
- 9. Open Ended
What is passive transport?
- 10. Multiple Choice
What is passive transport?
Occurs down a concentration or pressure gradient without energy
Transmembrane proteins form tunnels that allow small molecules to pass from cell to cell
channel filled with aqueous-filled cores, transport ions or water down their concentration gradient
- 11. Fill in the Blank
Osmosis is the movement of ________, such as water, across a selectively permeable membrane
- 12. Multiple Choice
What is active transport?
Moves solutes against their concentration gradient
Requires ATP (energy) to move solutes across a plasma membrane
Shape change causes solutes (ions) bound to protein to be pumped across membrane
Depends on ion gradient that was created by primary active transport system
- 13. Multiple Choice
Describe the secondary type of active transport.
Depends on ion gradient that was created by primary active transport system
Moves solutes against their concentration gradient
Requires ATP (energy) to move solutes across a plasma membrane
Shape change causes solutes (ions) bound to protein to be pumped across membrane
- 14. Multiple Choice
Explain endocytosis.
Cell membrane surrounds something and pinches off,bringing it into the cell
Liquids: “cell drinking”
solids: “cell eating”
- 15. Multiple Choice
What is phagocytosis?
solids: “cell eating”
liquids: “cell drinking”
Cell membrane surrounds something and pinches off,
- 16. Multiple Choice
What is pinocytosis?
solids: “cell eating”
liquids: “cell drinking”
Cell membrane surrounds something and pinches off
- 17. Multiple Choice
Exocytosis is the cells membrane surrounding something and pinches off, to bringing it into the cell.
True
False
- Answer choicesTagsAnswer choicesTags