护理入学考试生物练习卷（附答案）

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粒子从低浓度处向高浓度处移动
4. D细胞用囊泡吞入大颗粒

What is an organism's genotype?

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

在 DNA 中，腺嘌呤总是与哪种碱基配对？

1. A鸟嘌呤
2. B胸腺嘧啶
3. C胞嘧啶
4. D尿嘧啶

What is the difference between an antiseptic and a disinfectant?

1. AAntiseptics are used on living tissue; disinfectants are used on objects
2. BAntiseptics kill all spores; disinfectants kill none
3. CAntiseptics are antibiotics; disinfectants are vaccines
4. DAntiseptics are used on objects and floors; disinfectants are used on skin

How does facilitated diffusion differ from active transport?

1. AIt moves only water and no other substances
2. BIt needs ATP and moves substances against their gradient
3. CIt needs no energy and moves substances down their gradient
4. DIt works without any membrane proteins

What is the main role of inflammation after an injury?

1. ATo make antibodies inside the damaged cells
2. BTo stop all blood flow to the area so that bleeding ends
3. CTo destroy the healthy cells around the wound
4. DTo bring more blood and white blood cells to the area

Griffith injected mice with heat-killed harmful bacteria mixed with live harmless bacteria. The mice died, and live harmful bacteria were found in them. What did this show?

1. AHeat makes harmless bacteria become harmful when they are injected
2. BThe mice were killed by the dead bacteria alone
3. CA substance from the dead bacteria changed the harmless ones
4. DBacteria can be killed by the immune system of mice

A child's DNA profile has bands A, B, C and D. The mother has bands A and C. Man 1 has bands B and D, man 2 has A and E, and man 3 has C and F. Which man could be the biological father?

1. ANone of them
2. BMan 3
3. CMan 2
4. DMan 1