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B) For each of the following hormones, state what its primary function is in the plant and where it is produced.

5) Gibberelin

6) Ethylene

7) Auxin

8) Cytokinin

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Related questions

Auxins are a group of plant hormones that promote plant growth. For example, when a moose eats the top of a small aspen sapling, an auxin hormone is released by the plant and it travels to the meristematic cells (growing cells) at the ends of branches, where it causes those branches to grow more rapidly. Hormones in the auxin group are usually found in a charged, hydrophilic form.

The herbicide 2,4-D (2,4-Dichlorophenoxyacetic acid) is a synthetic auxin that is applied to broadleaf plants and when it enters plant cells, it causes uncontrolled, unsustainable growth that results in plant death.

Sodium azide is a compound that researchers can apply to cells and it prevents cells from making ATP. When researchers applied sodium azide to plant cells they found that the cells were then unable to absorb 2,4-D.

How does 2,4-D enter plant cells? Describe the steps of the process that is being used to move 2,4-D into cells, and explain why you think this is correct.

I Imagine you find two Arabidopsis seedlings, one which is missing a root and a second one which is missing its cotyledons. Explain what could have gone wrong during embryogenesis so. t that these seedling morphologies arise.

I If you would measure auxin concentrations in these seedlings, where do you expect to measure high auxin concentrations in each of these two seedlings?

Elaborate further how the postembryonic development of these two mutants will look like. Take into consideration that high auxin levels in the shoot trigger the ABC model of flower organ. development.

For each of the following elements, indicate whether it is a macronutrient, a micronutrient, or neither, and state what its primary function is in plant growth and development.

1) Iron

2) Carbon

3) Nitrogen

4) Zinc

5) Phosphorus

6) Oxygen

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