Key Concepts: Matching 1 Diffusion 2 Homeostasis 3 Negative Feedback 4 Cell Memb

Question

Key Concepts: Matching 1 Diffusion 2 Homeostasis 3 Negative Feedback 4 Cell Membrane 5 Mitochondria 6 Positive Feedback 7 Nernst Potential 8 Sodium influx in a neuron H acetylcholine receptor 9 Repolarization 10 Ligand-gated ion channel J Diffusion potential that opposes further diffusion of one ion 11 Helps maintain ion gradient K Sodium-potassium pump 12 Action potential A Mechanism to evoke response negative to initiating stimulus B Provides barrier to impede movement of water and substances C action potential propogation D Does not require ATP for movement through cell membrane E Located inside the presynaptic terminal of a neuron F Membrane potential goes from -90 mV to -40 mV G Membrane potential goes from -40 mV to-90 mV Maintenance of constant conditions in internal environment L rapid changes in membrane potential that pass a nerve signal

Explanation / Answer

1-D diffusion doesnit require Atpfor movement thriugh cell membrane.

2-I homeostasis is maintainance of constan condition

3-Anegative feedback mechanism to evokerespobe nagativevto unitiaing stimulus.

4Bcell membrane privide barrier ti impede movement if water

5-E mitochindria located in presynaptic nerve terminal

6K

7-J

8-F

9-G

10-H

12-L

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