ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

Which of these hormones is a steroid?

1. AGrowth hormone
2. BInsulin
3. CGlucagon
4. DTestosterone

What is the single most important way to prevent the spread of infection in hospitals?

1. AGiving every patient antibiotics
2. BHand hygiene
3. COpening the windows
4. DWearing a hair net

What is peer review?

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

In gel electrophoresis, why does DNA move towards the positive electrode?

1. ADNA has no charge and moves at random
2. BDNA has a positive charge from the nitrogen bases it contains
3. CDNA has a negative charge from its phosphate groups
4. DDNA is pulled by gravity through the gel

เกิดอะไรขึ้นในปฏิกิริยาการสังเคราะห์แบบดีไฮเดรชัน (dehydration synthesis)

1. Aพอลิเมอร์ถูกแยกโดยการเติมโมเลกุลน้ำ
2. Bมอนอเมอร์สองหน่วยเชื่อมกันและปล่อยโมเลกุลน้ำออกมา
3. Cน้ำถูกขจัดออกจากเซลล์โดยออสโมซิส
4. Dเซลล์แห้งและตาย

How are photosynthesis and aerobic respiration related?

1. ABoth take place only in chloroplasts
2. BBoth happen only in animal cells, never in plant cells
3. CBoth release oxygen into the air
4. DThe products of one are the reactants of the other

In snapdragons, flower colour shows incomplete dominance: RR is red, RW is pink and WW is white. Two pink plants are crossed. What phenotype ratio is expected?

1. AAll pink, like the parents
2. B1 red : 1 white
3. C1 red : 2 pink : 1 white
4. D3 red : 1 white

A karyotype shows three copies of chromosome 21. Which condition does this indicate, and how many chromosomes does the person have?

1. ADown syndrome, with 47 chromosomes
2. BDown syndrome, with 45 chromosomes
3. CTurner syndrome, with 47 chromosomes
4. DKlinefelter syndrome, with 45 chromosomes