Thursday
November 27, 2014

Homework Help: biology lab

Posted by natash on Thursday, April 3, 2008 at 9:23pm.

Lab: claim a pot with pea plants in it. If your pot has more than 3 plants, cut if back to three by cutting the extra plants off at ground level. Leave one plant fully intact. With a toothpick flag, label it "C" for control.

Cut the apex of the main shoot off of the other two plants just below the uppermost leaf.

On the cut surface of one of the plants, put a rice-grain-sized lump of lanolin. Lavel the plant "L" for detipped+lanolin.

On the other plant place a rice-grained-sized lump of lanolin that has 10^-4M Napthalene acetic acid mixed in it. Label the 3rd plant "A" for detipped +Lanolin with auxin.

Our hypotheses are that cutting the apex will stimulate growth by lateral buds and that auxin will suppress that growth.

Why do we have 2 treatments other than the control? What is the purpose of each?

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