Welcome to the Quiz!
This quiz contains 7 questions from a mix of 1 subtopics.
What happens to the cells during auxin-induced cell elongation?
they absorb water by osmosis
they lose water by osmosis
they divide rapidly
they maintain a constant water content
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What do expansins do during auxin-induced cell elongation?
they break down the cellulose microfibrils
they have no effect on the bonds between cellulose microfibrils
they loosen the bonds between cellulose microfibrils
they tighten the bonds between cellulose microfibrils
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What happens to the pH of the cell wall during auxin-induced cell elongation?
the pH remains the same
the pH decreases
the pH increases
the pH fluctuates
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How do plant hormones interact with their target cells?
they enter the cells and directly influence gene expression
they do not interact with cells directly
they interact with receptors on the cell surface or in the cytoplasm or nucleus
they only interact with receptors in the nucleus
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What is actively transported from the cytoplasm into the cell wall during auxin-induced cell elongation?
chloride ions
sodium ions
hydrogen ions
potassium ions
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What is the main difference between plant and animal hormones in terms of their site of action?
plant hormones are not transported, while animal hormones are
there is no difference in their site of action
plant hormones act distantly, while animal hormones act locally
plant hormones act locally, while animal hormones act distantly
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Where is IAA mainly synthesised in plants?
in the stem
in the roots
in the leaves
in meristems
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