2026 選修生物II CH2-1-2 植物體內的超級公路網：探索輸導組織

介紹植物體內的兩大運輸系統：木質部（Xylem）和韌皮部（Phloem）。闡述木質部負責水分和無機鹽的單向向上運輸，主要透過高效的導管和較為謹慎的管胞進行，並解釋依靠凝聚力張力假說克服重力的機制。相對地，韌皮部則負責光合產物（糖分）的雙向配送，其核心是無核的篩管與作為生命支持的伴細胞協同運作，並以壓力流假說來解釋養分的裝載與卸載。最後比較單子葉植物和雙子葉植物在根、莖、葉中維管束的不同排列結構，突顯這些組織是植物成功適應陸地生活與實現生長的演化智慧結晶。聽完後可以自主進行線上測驗，檢視學習成效喔~(需要登入gemini) 測驗網址  https://g.co/gemini/share/fbdf9b425fb6 Powered by Firstory Hosting

Episode metadata supplied by the publisher feed · Published Feb 17, 2026

Embed this episode

Attribution link and audio player

Ready to play

2026 選修生物II CH2-1-2 植物體內的超級公路網：探索輸導組織

0:00 14:03

1×

No transcript for this episode yet

We transcribe on demand. Request one and we'll notify you when it's ready — usually under 10 minutes.

Share this episode

Similar Episodes

No similar episodes found.

Similar Podcasts

Crypto Education Cypher Funk Elevate your crypto game with the University's Audio Channel! Enjoy free education that uncovers the secrets of blockchain and investment strategies. Perfect for all levels – unlock your potential in the crypto world now!__00___¡Eleva tu juego cripto con el Canal de Audio de la Universidad! Disfruta de educación gratuita que revela los secretos de la cadena de bloques y las estrategias de inversión. Perfecto para todos los niveles – ¡desbloquea tu potencial en el mundo cripto ahora!__00___提升你的加密游戏，加入大学音频频道！享受免费教育，揭示区块链的秘密和投资策略。适合所有水平的人士——现在就在加密世界中释放你的潜力吧！

Frequently Asked Questions

How long is this episode of 雷比特生物空中講?

This episode is 14 minutes long.

When was this 雷比特生物空中講 episode published?

This episode was published on February 17, 2026.

Can I download this 雷比特生物空中講 episode?

Yes. Use the download control on the episode player to save the publisher-provided media file.

URL copied to clipboard!