Plant Growth – Cytokinins, Ethylene, ABA, Photoperiodism, Vernalisation
Biology · Grade 11 · Week 41 · 25 questions
Plant Growth is a key Grade 11 biology chapter focusing on Cytokinins, Ethylene, ABA, and Photoperiodism. Concepts introduced here reappear in Grade 12 and are frequent sources of NEET questions.
What you'll practise
- Describe Cytokinins
- Identify Ethylene
- Compare ABA
- Apply plant growth concepts to NCERT exercise and exemplar problems
All 25 questions in this Plant Growth – Cytokinins, Ethylene, ABA, Photoperiodism, Vernalisation quiz
Grade 11 Biology — Plant Growth – Cytokinins, Ethylene, ABA, Photoperiodism, Vernalisation: 25 practice questions with instant scoring and explanations.
- Cytokinins were first isolated from
- Natural cytokinin in plants is
- Cytokinins promote
- Richmond-Lang effect refers to cytokinin delaying
- Apical dominance is overcome by applying
- Ethylene is unique because it is
- Ethylene's best-known effect is
- Triple response to ethylene in seedlings includes
- Commercial ethylene source for ripening is
- Ethylene promotes in rice deepwater varieties
- ABA stands for
- ABA is often called the
- ABA causes in guard cells
- ABA induces in seeds
- ABA and GA are
- Photoperiodism is response of plants to
- Short-day plants flower when day length is
- Example of long-day plant is
- Day-neutral plants include
- The site of photoperiod perception is
- Hypothetical flowering hormone is called
- Vernalization is promotion of flowering by
- Winter wheat requires vernalization at approximately
- Devernalization occurs due to
- Phytochrome exists in two forms:
Question 1 of 250 correct so far