题干

甲状腺细胞可以将氨基酸和碘合成甲状腺球蛋白,并且将甲状腺球蛋白分泌到细胞外,其过程如下图所示。下列叙述错误的是(   )

A:若含18O的氨基酸在甲状腺细胞内的代谢过程中产生了H218O,那么水中的18O最可能来自于氨基酸的—COOH

B:细胞内的碘浓度远远高于血浆中的碘浓度,这表明a是主动运输过程

C:与甲状腺球蛋白合成和分泌有关的主要细胞器是核糖体、内质网、高尔基体、线粒体

D:与右图中③不直接相通,但膜成分最为相似的是高尔基体,用含3H标记的氨基酸注射到该细胞中,则出现3H的部位依次为①③②⑥⑤④

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D

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    Come to the AG Society's expedition (探险) program and you will surely get unique experiences!

SWIM WITH THE HUMPBACKS OF TONGA

Dairen Jew and his team are your hosts for an unforgettable AG Society adventure, filled with in-water meetings with humpback whales (座头鲸) in the Kingdom of Tonga's group of islands.

WHO: Darren Jew's Whales Underwater

DATES: 26 September-4 October 2018

COST: $ 5,450 per person

BOOKINGS: Call 0756679413, email reservations @ whalesunderwater.com or visit whalesunderwater.com

11-DAY KIMBERLEY COAST CRUISE

The AG Society is partnering with APT to present an exciting voyage along the Kimberley coastline from Broome to Darwin. Expedition cruising offers the easiest way to explore the Kimberley. Guests on this 11-day voyage will go ashore, explore natural wonders, meet traditional owners, see rock art and spot wildlife.

WHO: APT

DATES: 6-16 September 2018

COST: $ 13,395 per person

BOOKINGS: Visit kimberleywilderness.com.au

LIGHTNING RIDGE FOSSIL DIG

The AG Society offers you a chance to hunt for fossils (化石). Guided by experts, you'll go to special locations, seeking new fossils for the collections of the Australian Opal Centre. Your discoveries will further establish these museum collections as a world-class scientific and cultural resource. There are also a series of lectures on mining history, fossils, dinosaur hunting and new dinosaurs.

WHO: Australian Opal Centre

DATES: 20-25 August 2018

COST: $ 2,200 per person, including all activities and lunches and dinners

BOOKINGS: Call 0427904587, email dig @ australianopalcentre.com or visit australian opalcentre. com

AG DKVIL ARK FXPEDITION

Come and join Tim Faulkner for a unique hands-on experience with this Tasmanian devil (袋獾) feeding program in the beautiful Barrington Tops of NSW. You'll get to see devils up close as you assist with feeding individuals. In addition to working with the animals, there'll be opportunities to explore the area's natural treasures and spot local wildlife. Don't miss your chance to get involved in this important conservation effort.

WHO: Devil Ark

DATES: 24-26 November 2018

COST: $ 1,750 per person

BOOKINGS: Call 0243408610, email info@ devilark.org. au or visit devilark.org. au