A. B. C. D. Which of the following do all four figures have in common? They all involve a transport protein. They all show a form of diffusion. They all show phospholipids. They all could represent the transport of ions.
Added by Adri-N J.
Close
Step 1
All four figures show a cell membrane with molecules moving across it. The cell membrane is composed of a phospholipid bilayer. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 78 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Which of the following processes includes all the others? \begin{equation}\begin{array}{l}{\text { (A) osmosis }} \\ {\text { (B) diffusion of a solute across a membrane }} \\ {\text { (C) passive transport }} \\ {\text { (D) transport of an ion down its electrochemical gradient }}\end{array}\end{equation}
Sri K.
12. A molecule that has both hydrophobic and hydrophilic areas is called a(n) (a) phospholipid (b) amphipathic, (c) carbohydrate, (d) terpene, (e) a & b are correct. 13. The net movement in simple diffusion is all of the following except (a) random, (b) from high to low concentration, (c) stops at equilibrium, (d) ATP activated, (e) across a semi-permeable membrane. 14. The Na+/K+ ATPase is an example of (a) simple diffusion, (b) osmosis, (c) facilitated diffusion, (d) symport transport, (e) active transport. 15. Molecules that cross a membrane by simple diffusion have all of the following characteristics except, (a) small, (b) lipid soluble, (c) uncharged, (d) water soluble, (e) non-polar. 16. An example of antiport transport is (a) osmosis, (b) Na+/K+ ATPase, (c) glucose transport, (d) the Na+/amino acid transporter, (e) more than one answer is correct. 17. When water flows into a cell, the cell is in (a) hypotonic solution, (b) hypertonic solution, (c) an isotonic solution, (d) equilibrium, (e) the cell lyses. 18. An example of symport transport is (a) osmosis, (b) Na+/K+ ATPase, (c) glucose transport, (d) the Na+/amino acid transporter, (e) more than one answer is correct. 19. In active transport, ATP is used to (a) change the conformation of the transporter, (b) bind to the transported molecule to make it more soluble, (c) create a pore in the membrane, (d) allow water and small molecules to pass through a membrane, (e) carry a molecule across a membrane without aid. 20. Methods for temporary adhesion of cells in tissues include (a) junctions, (b) lectins, (c) phospholipids, (d) cholesterol, (e) more than one answer is correct. 21. Gap junctions are also called (a) connexons, (b) desmosomes, (c) communication junctions, (d) a & c are correct, (e) connexins. 22 The 6 proteins that form a gap junction are called (a) connexons, (b) desmosomes, (c) communication junctions, (d) a & c are correct, (e) connexins. 23. Tight junctions are also called (a) connexons, (b) desmosomes, (c) communication junctions, (d) stretching junctions, (e) sealing junctions.
Adi S.
The plasma membrane is semipermeable. Some substances can freely cross the membrane, and some must be assisted across if they are to enter the cell. The diagram below shows five different forms of cell transport across a cell membrane (labeled A-E). Use this diagram to answer the following questions:
Anna D.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD