In the Acid-Growth Hypothesis of Cell Wall Extensibility, Which of the Following

question 25

Multiple Choice

In the acid-growth hypothesis of cell wall extensibility, which of the following events occurs FIRST?

• A)Expansins disrupt hydrogen bonds.
• B)Protons are pumped into the cell wall.
• C)Specific genes are activated.
• D)A proton-pumping enzyme is activated.
• E)Cross-links between noncellulosic polysaccharides are broken.

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