LAB 3 Answers

LAB 3 Answers - LAB 3 PLANTS ON LAND: RESPONSES TO THE...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
LAB 3 PLANTS ON LAND: RESPONSES TO THE ENVIRONMENT Answers to questions in the lab exercise: How would you demonstrate that cell growth in plants is dependent upon a naturally occurring plant growth hormone? Sever the tip of two plants. Leave one untreated. This will be the control plant and will show the effect of a lack of hormone. Treat the exposed surface of the second plant by placing upon it another severed tip. If growth then occurs, this will show that the required hormone came from the tip. Experiment on apical dominance and hormones. How does this experiment show that IAA is responsible for apical dominance? The answer will be given after lab 5. What is the effect of gibberellin? The answer will be given after lab 5. Experiment on gibberellin. Do gibberellin and IAA have the same effects? No. The application of giberellins on dwarf plants promotes stem elongation so that the dwarf plants are close in size to normal plants. (Normal plants are unaffected by gibberellins.) IAA does not affect dwarf plants.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/02/2011 for the course BIOL BIOL 111 taught by Professor Roffey during the Fall '09 term at McGill.

Page1 / 2

LAB 3 Answers - LAB 3 PLANTS ON LAND: RESPONSES TO THE...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online