护理入学考试生物练习卷（附答案）

What is the main material in the cell walls of fungi?

1. ACellulose
2. BChitin
3. CPeptidoglycan
4. DCollagen

What is peer review?

1. AExperts checking a study before it is published
2. BAsking patients for their opinion of a treatment
3. CRepeating your own experiment many times
4. DReading a textbook to learn a topic

What is an organism's genotype?

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

Which statement about Archaea is correct?

1. AThey are eukaryotes that have a nucleus and membrane-bound organelles
2. BThey are prokaryotes, and many live in extreme environments
3. CThey are a type of virus
4. DThey are multicellular plants

What does Mendel's law of segregation state?

1. AGenes on different chromosomes are always inherited together
2. BDominant alleles are more common in a population than recessive ones
3. CEach gamete receives both alleles of every gene
4. DThe two alleles of a gene separate so each gamete gets only one

为什么很高的温度会使大多数酶停止工作？

1. A酶发生变性：其活性位点改变形状
2. B热使酶瞬间分解成氨基酸
3. C酶移动得太慢，无法遇到底物
4. D底物变成了另一种酶

Why can O-negative red blood cells be given to patients of almost any blood type in an emergency?

1. AThey have no haemoglobin to react with
2. BTheir plasma contains anti-A and anti-B antibodies
3. CThey carry no A, B or RhD antigens
4. DThey carry all of the A, B and RhD antigens

The number of bacteria in a sample rises from 200 to 500. What is the percentage increase?

1. A250%
2. B60%
3. C150%
4. D300%