ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What does xylem carry in a plant?

1. ASeeds from the flowers to the soil
2. BOxygen from the leaves to the roots
3. CWater and minerals from the roots upward
4. DSugars from the leaves to the roots

What is a bacteriophage?

1. AA bacterium that infects viruses
2. BA fungus that kills bacteria
3. CA white cell that eats bacteria
4. DA virus that infects bacteria

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

A patient's heart rate is measured four times: 70, 72, 74 and 80 beats per minute. What is the mean?

1. A72 beats per minute
2. B80 beats per minute
3. C74 beats per minute
4. D73 beats per minute

Which list puts these human energy sources in order from fastest to use to longest-lasting store?

1. AATP, then glycogen, then fat
2. BFat, then glycogen, then ATP
3. CATP, then fat, then glycogen
4. DGlycogen, then ATP, then fat

What happens during telophase of mitosis?

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

Bacteria grown in heavy nitrogen (¹⁵N) are moved to normal nitrogen (¹⁴N) and allowed to divide once. All their DNA now has a density halfway between heavy and light. Which model of replication does this support?

1. ASemiconservative replication
2. BConservative replication
3. CReplication without a template
4. DReplication by RNA copying

A man has Klinefelter syndrome (XXY). Which error most likely produced it?

1. AA frameshift mutation in one of the genes on the father's Y chromosome
2. BExtra mitosis in the zygote after fertilisation
3. CCrossing over between chromosome 21 and the X chromosome
4. DNondisjunction of the sex chromosomes during meiosis in a parent