Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

What is the resolution of a microscope?

1. AIts ability to show two close points as separate
2. BHow large the field of view is
3. CHow bright the image appears
4. DHow many times larger it makes the image of the specimen

What are cilia?

1. ASmall round sacs that hold digestive enzymes
2. BFolds of the inner mitochondrial membrane that make ATP
3. CShort hair-like projections that beat in waves
4. DOpenings in the nuclear envelope

Di manakah kebanyakan DNA sel eukariot ditemui?

1. ADalam nukleus
2. BDalam membran sel
3. CDalam lisosom
4. DDalam dinding sel

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt works only in the dark, like the bacteria it comes from
2. BIt survives the high temperatures used to separate the strands
3. CIt copies RNA as well as DNA
4. DIt makes the DNA strands stick together

Which type of graph is best for comparing the number of patients with each ABO blood type?

1. AA scatter plot
2. BA bar graph
3. CA histogram
4. DA line graph

Which is an example of negative feedback?

1. AA wound becoming more inflamed over time
2. BContractions growing stronger during labour
3. CBlood clotting speeding up once it starts
4. DSweating when body temperature rises

A linear DNA molecule is fully cut by a restriction enzyme, giving fragments of 500, 300 and 200 base pairs. How long was the original molecule?

1. A500 base pairs
2. B1000 base pairs
3. C1500 base pairs
4. D300 base pairs

In the Hershey–Chase experiment, viruses were labelled with radioactive phosphorus in their DNA or radioactive sulfur in their protein. Only the phosphorus entered the infected bacteria. What did this show?

1. AViruses contain no DNA at all
2. BBacteria take up any radioactive substance
3. CProtein, not DNA, is the genetic material of the virus
4. DDNA, not protein, is the genetic material of the virus