A Level Biology Practice Exam

What is a seed bank?

1. A collection of living plants

2. A storage of genetic material from plants in seed form

3. A place for growing new plant species

4. A nursery for young plants

The correct answer is: A storage of genetic material from plants in seed form

A seed bank is primarily a storage facility for genetic material from plants in their seed form. This definition encompasses the crucial role that seed banks play in biodiversity conservation, research, and agriculture. By preserving seeds, seed banks safeguard the genetic diversity of various plant species, which is essential for food security, ecological balance, and the potential restoration of endangered or extinct plant populations. The other options, while related to plants, do not accurately define a seed bank. A collection of living plants refers to botanical gardens or living collections but does not imply the preservation of seeds specifically for genetic material. A place for growing new plant species would suggest a cultivation or breeding facility rather than storage. Similarly, a nursery for young plants indicates a location for starting and nurturing young plants, which is another distinct function separate from the purpose of a seed bank.