护理入学考试生物
方法
- 说出这道题的主题:细胞结构、物质运输、细胞分裂、DNA 与蛋白质合成、遗传、生物分子、微生物或实验设计。
- 回忆关键规则:A–T 和 G–C,扩散由高浓度向低浓度,水向溶质更多的一侧移动,有丝分裂保持而减数分裂减半染色体数目。
- 对于杂交,先写出亲本的基因型,列出配子,并填好庞尼特方格再计数。
- 对于实验,标出自变量、因变量和控制变量,并问一问证据是支持还是仅仅提示了结论。
- 把每个选项与所问的问题对照,而不是只看它是不是一句真话。
公式表、每个专题的关键方法步骤和 8 道练习题,完整解答附在最后。
肝门静脉由哪两条静脉汇合而成?
髋关节的主要屈肌是哪块?
肺活量是哪些肺容积之和?
一名惊恐发作时过度通气的患者手指麻刺。动脉血气最可能显示什么?
When most people in a community are vaccinated, people who cannot be vaccinated are also protected. Why?
胰腺细胞合成并分泌大量消化酶。哪些细胞器会特别发达?
Normal saline (0.9% NaCl) is used for IV fluids. How is it described compared with blood?
Why does food cook faster in a pressure cooker?
答案: B · 肠系膜上静脉和脾静脉
门静脉在胰颈后方由肠系膜上静脉和脾静脉汇合而成。它把富含营养物质的血液送到肝脏。
答案: D · 髂腰肌
髂腰肌(腰大肌和髂肌)是最强的屈髋肌。臀大肌负责伸髋。
答案: C · 潮气量、补吸气量和补呼气量
肺活量 = IRV + TV + ERV。它不包括始终留在肺内的残气量。
答案: B · pH 升高,PaCO₂ 降低
过度通气排出 CO₂,引起急性呼吸性碱中毒。碱中毒使钙与白蛋白的结合增加,离子钙降低,从而引起麻刺感。
答案: A · The pathogen has too few hosts to spread easily
When most people are immune, chains of transmission are broken, so the pathogen rarely reaches unprotected people such as newborns or those with weak immune systems.
答案: D · 粗面内质网和高尔基体
用于分泌的蛋白质在粗面内质网上合成,然后由高尔基体包装进囊泡,再由囊泡释放到细胞外。
答案: A · Isotonic
0.9% NaCl has about the same solute concentration as blood plasma, so it is isotonic. Water moves equally in and out of red blood cells, which keep their normal shape.
答案: B · The higher pressure raises the boiling point, so the water is hotter
Sealing the pot raises the pressure, so water must reach a higher temperature (above 100 °C) before it boils. The hotter water cooks food faster. Autoclaves use the same idea to sterilise equipment.
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