ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What is a zygote?

1. AA haploid cell made by meiosis
2. BThe diploid cell formed when a sperm fertilises an egg
3. CAn unfertilised egg cell
4. DA body cell that has just completed its first round of mitosis

Which gas do plants take in from the air for photosynthesis?

1. ACarbon dioxide
2. BHydrogen
3. COxygen
4. DNitrogen

What is a sister chromatid?

1. AOne of two identical copies of a chromosome joined at the centromere
2. BA chromosome that is inherited from the mother only, never the father
3. CA small ring of DNA found in bacteria
4. DOne of the two sex chromosomes

Where does the oxygen released by photosynthesis come from?

1. AFrom carbon dioxide molecules that are split
2. BFrom water molecules that are split
3. CFrom chlorophyll that is used up
4. DFrom glucose that is broken down

What causes cohesion between water molecules?

1. ACovalent bonds between neighbouring molecules
2. BHydrogen bonds between neighbouring molecules
3. CIonic bonds between oxygen atoms
4. DMagnetic forces between hydrogen atoms

What happens during telophase of mitosis?

1. AA nuclear envelope forms around each set of chromosomes
2. BThe DNA is copied for the next division
3. CThe sister chromatids are pulled apart
4. DThe chromosomes line up across the middle of the cell

Bacteria in a closed flask grow quickly at first, but the population then stops increasing. What is the main reason?

1. ANutrients run out and waste products build up
2. BThe bacteria stop dividing once they reach adult size
3. CThe bacteria change into viruses after many divisions
4. DThe flask becomes too cold for growth

ข้อได้เปรียบหลักของการศึกษาแบบปกปิดสองทาง (double-blind) คืออะไร

1. Aผู้วิจัยรู้เสมอว่าผู้ป่วยคนใดได้รับยาจริง
2. Bเสร็จสิ้นการศึกษาได้โดยไม่ต้องมีกลุ่มควบคุม
3. Cความคาดหวังของผู้ป่วยและผู้วิจัยไม่อาจทำให้ผลลำเอียงได้
4. Dศึกษาผู้ป่วยได้มากเป็นสองเท่า