ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

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

1. ACellulose
2. BPeptidoglycan
3. CCollagen
4. DChitin

เบสใดพบในอาร์เอ็นเอแต่ไม่พบในดีเอ็นเอ

1. Aไทมีน
2. Bอะดีนีน
3. Cยูราซิล
4. Dกัวนีน

How many millilitres are in one litre?

1. A10
2. B10 000
3. C1000
4. D100

Where does the Krebs (citric acid) cycle take place in a eukaryotic cell?

1. AIn the cytoplasm
2. BIn the nucleus
3. CIn the mitochondrial matrix
4. DOn the rough endoplasmic reticulum

Why do red blood cells have a flattened, biconcave disc shape?

1. AIt helps them divide faster
2. BIt makes them stick to vessel walls
3. CIt lets them hold a larger nucleus and more DNA
4. DIt gives a large surface area for gas exchange

What is a random sample?

1. AA group where everyone in the population has an equal chance of being chosen
2. BA group made only of people who volunteer to take part
3. CA group chosen because they are likely to support the hypothesis
4. DA group chosen by the researcher because they are easy to reach and willing

A survey finds that students who sleep more get higher test scores. Which study would best test whether more sleep causes better scores?

1. ARandomly assign students to different sleep times and compare their scores
2. BAsk the students with the highest scores how they study
3. CSurvey a much larger group of students about their sleep habits
4. DCompare the test scores of students at two different schools

The antibiotic tetracycline binds to bacterial ribosomes. Which process does it block, and why are human cells much less affected?

1. ATranscription, because human cells have no RNA polymerase of their own
2. BTranslation, because human cells have no ribosomes
3. CDNA replication, because bacteria have no DNA polymerase
4. DTranslation, because bacterial ribosomes differ from human ribosomes