ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

Which type of microscope is needed to see a virus?

1. AA light microscope
2. BAn electron microscope
3. CA magnifying glass
4. DA dissecting microscope

Which group of biomolecules forms the basic bilayer of the cell membrane and also stores long-term energy?

1. ANucleic acids
2. BLipids
3. CProteins
4. DCarbohydrates

What is the job of messenger RNA (mRNA)?

1. AIt carries amino acids to the ribosomes
2. BIt carries the genetic code from DNA to the ribosomes
3. CIt stores genetic information in the nucleus permanently
4. DIt forms the main structure of the ribosome

Dolly the sheep was cloned by putting the nucleus of an adult body cell into an egg cell whose nucleus had been removed. Whose nuclear DNA did Dolly have?

1. AThe sheep that gave the egg cell
2. BThe sheep that carried the pregnancy
3. CAn equal mix of all three sheep
4. DThe sheep that gave the body cell nucleus

A study finds a positive correlation between hours of exercise and lung capacity. What does this mean?

1. AThere is no link between the two variables
2. BExercise has been proven to cause higher lung capacity
3. CAs exercise increases, lung capacity tends to increase
4. DAs exercise increases, lung capacity tends to decrease

Why can DNA profiling (fingerprinting) identify individual people?

1. ARepeated non-coding DNA regions vary in length between people
2. BEach person's genes code for different amino acids
3. CEvery person has a different number of chromosomes in their cells
4. DDNA in blood differs from DNA in skin

Under the microscope, homologous chromosomes are moving to opposite poles, and each is still made of two chromatids. Which stage is this?

1. AProphase of mitosis
2. BAnaphase II of meiosis
3. CAnaphase I of meiosis
4. DAnaphase of mitosis

An inhibitor binds to an enzyme away from the active site and changes the enzyme's shape. Adding more substrate does not restore the rate. What type of inhibition is this?

1. ASubstrate saturation
2. BCompetitive inhibition
3. CDenaturation by heat
4. DNoncompetitive inhibition