16. Which structure prevents the plant cell from bursting when placed in a hypot

Question

16. Which structure prevents the plant cell from bursting when placed in a hypotonic solution? (a) Cell wall (c) Lysosome (d) Vacuole (b) Cell membrane 17. Which type of solution will cause cells to swell, or even to burst? (a) Isotonic solution (b) Hypotonic solution (c) Hypertonic solution (d) Osmotic solution 18. Oligosaccharides are long chains of lipids linked to proteins and phospholipids on the surface of cells. (a) Ture (b) False 19. Which one of the following can cause the interior of the neuron to have a momentary positive charge? (a) Opening of potassium leak channels (b) Activity of the Na/K ATPase (c) Opening of voltage gated sodium channels (d) Opening of voltage gated potassium channels is a protein that contributes to the asymmetric arrangement of the phospholipid bilayer (c) Scarmblases (d) transferase 20 (a) Flippase (b) Spectrin 21. Glycolipids are only found in the cytoplasmic part of the plasma membrane. (a) True (b) False 22. is a membrane protein the lie entirely outside on cither side of the bilayer and it is covalently attached to lipid molecules within the membrane. (a) Protein attached (b) Transmembrane protein (c) Lipid-linked (d) monolayer associated ? helix 23. Which statement best describes the plasma membrane? (a) It is freely permeable to all substances (b) It is selectively permeable to certain substances (c) It is nonpermeable to all substances (d) More than I is correct 24. The net force driving an uncharged molecule across the plasma membrane by passive transport is: (c) Membrane potential (a) Concentration gradient (b) Charge of the molecule (d) More than one is correct 25. A cell is recognized by other tissue members as "self" by its surface (a) Glycoproteins (b) Lipids (c) Cholesterol (d) Membrane proteins 26. lon channels are not continuously open and are highly selective. 27. Initiating an action potential works best at short distances. 28. The (a) True (b) False (a) True (b) False net force driving a charged molecule across the plasma membrane by passive transport is: (a) Concentration gradient (b) Charge of the molecule (c) Membrane potential (d) More than one is correct 29. Chemical signal released by nerve cells is: (a) Ligand (b) Neurotransmitter (c) Proteins (d) Glycogen 30. Nerve cells are the only cells with a resting membrane potentia (a) True (b) False

Explanation / Answer

Ans 16: ( a ) cell wall

Ans 17: ( b ) hypotonic

Ans 18: ( a ) true

Ans 19: ( c ) opening of voltage gated sodium channels

Ans 20 : ( a ) flippase

Ans 21: ( b ) false

Ans 22: ( c ) lipid - linked

Ans 23 :( b ) It is selectively permeable to certain substances

Ans 24: ( a ) concentration gradient

Ans 25: ( d ) membrane proteins

Ans 26: ( b ) false

Ans 27 : ( b ) false

Ans 28 : ( a ) concentration gradient

Ans 29 : ( b ) neurotransmitter

Ans 30 : ( b ) false

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.