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TLS Online TPP Program

#Question id: 2339

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?

#Unit 2. Cellular Organization

  1. Osmosis has caused the sugar molecules to move down the concentration gradient until they were evenly distributed in the coffee.

  2. Facilitated diffusion has occurred and has caused the sugar molecules to dissolve in the coffee.

  3. Diffusion has occurred in the coffee causing the sugar to become evenly distributed.

  4.  Active transport has occurred using the heat in the coffee as a source of energy.

More Questions
TLS Online TPP Program

#Question id: 2368

#Unit 2. Cellular Organization

 Which of these produce most of the ATP in aerobic cellular respiration?
TLS Online TPP Program

#Question id: 18620

#Unit 13. Methods in Biology

Variants of PCR has been devised for
a) efficiency
b) sequence specific amplification
c) mutation analysis
d) fluorescence
TLS Online TPP Program

#Question id: 2967

#Unit 2. Cellular Organization

G1 is associated with which of the following cellular events?
TLS Online TPP Program

#Question id: 3677

#Unit 3. Fundamental Processes

Which protein can catalyze the formation of phosphodiester bonds?
TLS Online TPP Program

#Question id: 28821

#Unit 2. Cellular Organization

In the presence of ATP and Ca2+, the myosin head releases from the actin filament and extending from_____