Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

Exposure to _______ can trigger seed germination.

  1. a. light
  2. b. cold
  3. c. smoke
  4. d. all can be triggers

Summary Introduction

Introduction: Seed germination is a process by which new plants arise from developing seeds. It involves many environmental factors that can trigger the growth of the seed in the germination process. Some of the factors include light, water, temperature, smoke, and cold. Sometimes, the seeds may delay the germination, even though all the environmental conditions are favourable for the germination process and this state is called as seed dormancy.


Reason for the correct answer:

The process by which new plants arise from the developing seed is called seed germination; it can be triggered by some environmental factors. This includes light, water, smoke, temperature, and cold. The germination process requires light for the two visible spectrums (red and blue) for the photosynthesis process. The cold is required for the vernalization process in seed germination. It is a cold-treatment process which involves the cooling of the seeds for germination. The germination process will be enhanced by smoke as the smoke accelerates plant growth regulators, which in turn enhance the plant growth.

Option d. is given as “all can be triggers”.

The process of seed germination can be triggered with the help of some environmental factors including light, cold, smoke, water, and temperature.

Hence, the correct answer is option d...

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