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Plant Hormones Quizzes, Questions & Answers

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Top Trending Plant Hormones Quizzes

The Ripening Signal: Ethylene Hormone Explained

One overripe banana in a bowl of fruit accelerates the ripening of everything around it, and the molecule responsible for that effect is a gas. Ethylene hormone explained reveals a plant hormone unlike any other, operating in...

Questions: 20 | Attempts: 12 | Last updated: Mar 8, 2026

Sample Question
Unlike most other plant hormones, what is the physical state of ethylene at room temperature?

A gas

A liquid

A solid

A plasma

A crystal

Reaching New Heights: Gibberellins Function

Some of the most dramatic effects a plant hormone can have are visible without a microscope: seeds breaking dormancy, stems elongating rapidly, flowers forming ahead of schedule. Gibberellins function encompasses all of these...

Questions: 20 | Attempts: 12 | Last updated: Mar 8, 2026

Sample Question
What is the primary role of gibberellins in a developing plant stem?

Promoting cell elongation and division

Stopping the plant from growing too tall

Turning the stem into a flower

Protecting the stem from insects

Creating sugar through photosynthesis

Chasing the Sun: Auxins in Plants Explained

Point a plant toward a light source and watch it bend toward it with quiet, purposeful determination. That movement is not accidental, it is orchestrated by auxins in plants explained as a class of hormones that redistribute...

Questions: 20 | Attempts: 11 | Last updated: Mar 8, 2026

Sample Question
What is the primary function of auxin in the stem of a plant?

Promoting cell elongation

Stopping leaf growth

Speeding up flower death

Transporting water to leaves

Creating oxygen for the roots

Recent Plant Hormones Quizzes

The Stress Signal: Abscisic Acid Function

When conditions turn harsh, plants do not panic. They respond with molecular precision, and abscisic acid function is at the center of that stress response system. ABA triggers stomatal closure to conserve water during drought,...

Questions: 20 | Attempts: 10 | Last updated: Mar 8, 2026

Sample Question
What is the primary role of Abscisic Acid (ABA) during a period of severe drought?

Stimulating stomatal closure to conserve water

Increasing the rate of photosynthesis

Promoting the growth of large leaves

Speeding up the flowering process

Encouraging the intake of CO2

The Fountain of Youth: Cytokinins in Plants

While much of plant growth is driven by elongation, the decision to actually divide a cell requires a different molecular signal entirely. Cytokinins in plants drive cell division in meristems, delay leaf senescence, regulate...

Questions: 20 | Attempts: 10 | Last updated: Mar 8, 2026

Sample Question
What is the primary cellular process stimulated by the presence of cytokinins?

Cytokinesis (cell division)

Photolysis of water

Glycolysis

DNA denaturation

Apoptosis