Question:
Pollen grains are well preserved as fossils because of the presence of which of the following?
Pollen grains are well preserved as fossils because of the presence of which of the following?
Show Hint
Sporopollenin is the most resistant biological material and protects pollen grains from degradation over time.
Updated On: Mar 7, 2025
- Pectin
- Sporopollenin
- Cellulose
- Lignin
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Sporopollenin is a highly resistant organic material found in the outer layer (exine) of pollen grains. It provides resistance to environmental stresses such as temperature, pH, and enzymatic degradation, making pollen grains well-preserved in fossil records.
Was this answer helpful?
0
0
Top Questions on Ecology
- The process of entry of pollutants into a food chain is known as:
- Define ecosystem. Describe its biotic and abiotic components with diagrams.
- What is mutualism? Explain it with a suitable example.
- Describe the role of microbes in biogas production.
- Describe in detail how microbes can be used to decrease the use of chemical fertilizers and pesticides.
View More Questions
Questions Asked in UP Board XII exam
- (c) The value of the integral \( \int \sqrt{1 + \sin 2x} \,dx \) is:
- UP Board XII - 2024
- Integration
(b) Order of the differential equation: $ 5x^3 \frac{d^3y}{dx^3} - 3\left(\frac{dy}{dx}\right)^2 + \left(\frac{d^2y}{dx^2}\right)^4 + y = 0 $
- UP Board XII - 2024
- Differential equations
- Describe different Assisted Reproductive Technologies.
- UP Board XII - 2024
- Reproductive Biology
- Explain the salient features of the Human Genome.
- UP Board XII - 2024
- Genetics
- Draw a labelled diagram of a sectional view of the female ovary.
- UP Board XII - 2024
- Reproductive Biology
View More Questions