Practice Questions

TLS Online TPP Program

#Question id: 31166

Which of the following correctly explains the after-hyperpolarization?

#Unit 7. System Physiology – Animal

rapid return of the Na⁺ channels to the closed state
slow return of the Na⁺ channels to the closed state
rapid return of the K⁺ channels to the closed state
slow return of the K⁺ channels to the closed state

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TLS Online TPP Program

#Question id: 2338

#Unit 2. Cellular Organization

Access to the nucleus is regulated by

TLS Online TPP Program

#Question id: 2339

#Unit 2. Cellular Organization

A busy student pours herself a cup of coffee and adds a sugar cube. A moment later the phone rings so she doesn't have time to stir it. Ten minutes later she returns to her coffee, and when she tastes it, it is obvious that the sugar has dissolved and that the coffee is uniformly sweet. What happened?

TLS Online TPP Program

#Question id: 2341

#Unit 2. Cellular Organization

Water molecules crossing a plasma membrane do so by

TLS Online TPP Program

#Question id: 2342

#Unit 2. Cellular Organization

Which of the following is a requirement for osmosis to occur?

TLS Online TPP Program

#Question id: 2343

#Unit 2. Cellular Organization

What advantage would a plant cell have over an animal cell if both were placed in pure water