ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What is a bacteriophage?

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

What is the R group of an amino acid?

1. AThe carboxyl group at one end
2. BThe amino group that is shared by all amino acids
3. CThe side chain that differs between amino acids
4. DThe peptide bond between two amino acids

What are round (spherical) bacteria called?

1. ACocci
2. BSpirilla
3. CVibrios
4. DBacilli

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. B74 beats per minute
3. C73 beats per minute
4. D80 beats per minute

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt makes the DNA strands stick together
2. BIt works only in the dark, like the bacteria it comes from
3. CIt survives the high temperatures used to separate the strands
4. DIt copies RNA as well as DNA

In which part of the chloroplast do the light-dependent reactions happen?

1. AIn the outer membrane
2. BIn the thylakoid membranes
3. CIn the stroma
4. DIn the cell wall

Cystic fibrosis is caused by a faulty CFTR protein, which forms a chloride channel in the cell membrane. Which process is directly affected?

1. ADiffusion of oxygen molecules through the lipid bilayer
2. BCopying of DNA in the nucleus
3. CMovement of chloride ions through a membrane protein
4. DProduction of ATP in the mitochondria

การเปลี่ยนแปลงใดจะทำให้การแพร่ผ่านเยื่อเร็วขึ้น

1. Aพื้นที่ผิวสำหรับแลกเปลี่ยนที่เล็กลง
2. Bเยื่อที่หนาขึ้น
3. Cความต่างของความเข้มข้นระหว่างสองด้านที่มากขึ้น
4. Dอุณหภูมิที่ต่ำลงทั้งสองด้าน