Topic Details (Notes format)

Plant Growth Regulators

Subject: General Science

Book: NCERT Biology Class 12

Study of hormones controlling plant growth.
- **Types of Plant Hormones**:
- Auxins, gibberellins, cytokinins, ethylene, abscisic acid.
- **Effects on Growth and Development**:
- Seed germination, fruit ripening, leaf fall.
- **Applications in Agriculture**:
- Hybridization, tissue culture.

**Possible Exam Questions:**
1. What are plant growth regulators? Name them.
2. Explain the role of auxins in plant growth.
3. How does ethylene influence fruit ripening?
4. Discuss the agricultural applications of gibberellins.
5. What is the role of abscisic acid in plant dormancy?

Practice Questions

Which gas is released during photosynthesis?

View Question

Which organ stores and releases glucose in the human body?

View Question

Which gas is used in fire extinguishers?

View Question

What is the unit of frequency?

View Question

Which planet is known as the "Red Planet"?

View Question

Which is the smallest bone in the human body?

View Question

Which planet has the strongest gravitational force?

View Question

What is the main component of natural gas?

View Question

Which law states that energy cannot be created or destroyed?

View Question

What is the most abundant element in the universe?

View Question