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Author Question: If we place living cells in a nonpolar solvent like methane or ethane, A) their membranes will ... (Read 78 times)

deesands

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on: Jul 27, 2018
If we place living cells in a nonpolar solvent like methane or ethane,
 
  A) their membranes will thicken, preventing molecular transport across the membrane
  B) they will rapidly explode due to pressure caused by the solvent building up inside the cell
  C) their membranes will most likely dissolve as cell membranes are also nonpolar
  D) they will function in much the same way as they do in water

Question 2

A rock sample contains 1/8 micrograms of the parent radioactive isotope Al-26 and 7/8 micrograms of its daughter isotope Mg-40. If the half-life of this decay is approximately 700,000 years, how old is this rock?
 
  A) 2.1 million years
  B) 2.8 million years
  C) 1.4 million years
  D) 700,000 years


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joneynes

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Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


deesands

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Reply #2 on: Jul 27, 2018
TY


joneynes

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Reply #3 on: Jul 27, 2018
You're welcome


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