alleryWhich part of plants respires most actively?
AMature woody stems of trees
BGrowing root and shoot tips
CDead xylem vessels in old wood
DCork tissue of the outer bark
Answer & Solution
Correct answer: B. Growing root and shoot tips
1. Cells that divide and grow need lots of ATP.
2. The chapter notes that meristematic regions like root and shoot tips respire fastest.
3. Dead tissues respire negligibly.
4. So option A is correct.
_Source: Selina Concise Biology Class 9, Ch 7 Respiration in Plants (Mistral OCR'd PDF), section on respiratory rate_
Keep practising Unit 3B: Photosynthesis, Respiration & Cellular Energy
Browse all Unit 3B: Photosynthesis, Respiration & Cellular Energy questions for AP Biology, or explore more Biology topics.
Related questions
Which substance is the final electron acceptor in aerobic respiration?During germination seeds respire actively. The dry matter of the seedling at firstWhich experiment shows that CO2 is released during respiration?In woody stems gaseous exchange takes place throughGaseous exchange in plant leaves occurs mainly throughWhy is respiration in plants not the same as burning?The respiratory equation in plants isCatabolic processes are those that