Root Cell Adaptation to Prevent the Cell Solutes from Equilibrating

question 51

Multiple Choice

Root cell adaptation to prevent the cell solutes from equilibrating with the water in the soil includes
I. semipermeable membranes that prevent the transfer of large molecules.
II. cell membranes that can prevent the transfer of water out of the cell.
III. cell membranes that can actively transport ions across the gradient.

• A) I and II only
• B) I and III only
• C) II and III only
• D) III only
• E) I, II, and III

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Definitions:

tRNA

Transfer RNA; a type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein during the process of translation in protein synthesis.

Ribosome

Molecular machines within cells that synthesize proteins by translating the information contained in messenger RNA.

Nitrogenous Base

An organic molecule with nitrogen that is a component of nucleic acids and nucleotides, participating in forming the genetic code.

Uracil

A nitrogenous base found in RNA, where it pairs with adenine and replaces thymine during RNA synthesis.