Plant hormone

High school (ages 12+)
Animals & Nature

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/plant-hormone

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Phytohormone
2. What is the major classes?Auxins, Gibberellins, Cytokinins, Abscisic Acid (ABA), Ethylene
3. What are plant hormones and why are they called secret messengers?Plant hormones are tiny chemicals made inside plants that send signals to tell parts of the plant when to grow, bend, or change. They help the plant respond to light, gravity, and other signals.
4. How do plant hormones help a plant grow taller or make flowers?Hormones like auxins, gibberellins, and cytokinins work together. Auxins help cells stretch, gibberellins push the stem to grow, and cytokinins help cells divide and form new shoots.

Phytohormone: Endogenous plant growth regulators influencing physiological processes.
Apical Dominance: Suppression of lateral bud growth by the terminal bud, mediated by auxins.
Senescence: The process of aging and eventual death of plant cells, tissues, or organs, often triggered by ethylene.