护理入学考试生物练习卷（附答案）

DNA 中含有哪四种碱基？

1. A腺嘌呤、胸腺嘧啶、葡萄糖和胞嘧啶
2. B腺嘌呤、胸腺嘧啶、鸟嘌呤和胞嘧啶
3. C腺嘌呤、尿嘧啶、鸟嘌呤和胞嘧啶
4. D丙氨酸、胸腺嘧啶、甘氨酸和半胱氨酸

What is an organism's genotype?

1. AThe environment in which it lives
2. BThe traits that can be seen or measured
3. CThe number of cells in its body
4. DThe alleles it carries for a trait

什么是扩散？

1. A粒子从高浓度处向低浓度处移动
2. B水借助 ATP 穿过膜的移动
3. C细胞用囊泡吞入大颗粒
4. D粒子从低浓度处向高浓度处移动

A patient's blood type is B positive. What does this mean?

1. ATheir red cells carry no antigens at all
2. BTheir red cells carry the A antigen and no RhD antigen
3. CTheir red cells carry the B antigen and the RhD antigen
4. DTheir plasma contains anti-B antibodies

A student switches a light microscope from low power to high power. What happens to the field of view?

1. AIt gets smaller and usually darker
2. BIt gets larger and brighter
3. CIt gets larger but less detailed
4. DIt stays the same size but gets brighter

Which process removes carbon dioxide from the atmosphere?

1. APhotosynthesis
2. BCellular respiration
3. CDecomposition
4. DBurning fossil fuels

A karyotype shows 45 chromosomes, with a single X chromosome and no Y. Which condition is this?

1. AA typical male karyotype
2. BDown syndrome
3. CTurner syndrome
4. DKlinefelter syndrome

The wings of a bat and the wings of a butterfly are used for flying but have very different structures. What are they called, and what does this show?

1. AHomologous structures, which were inherited from a shared ancestor
2. BVestigial structures, which no longer have a function
3. CAnalogous structures, which evolved separately for the same job
4. DHomologous structures, which have the same bones inside