ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What is an inference?

1. AA list of the materials used in an experiment
2. BA conclusion reached from observations and prior knowledge
3. CA measurement taken with a calibrated instrument in a laboratory
4. DA variable that the scientist changes on purpose

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

Which element is found in all organic molecules?

1. ANitrogen
2. BCarbon
3. CSulfur
4. DPhosphorus

Many vitamins act as coenzymes. What does this mean?

1. AThey are digested to release large amounts of energy
2. BThey are built into the cell membrane
3. CThey replace enzymes that have been denatured
4. DThey help enzymes carry out their reactions

What happens during telophase of mitosis?

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

Nerve cells release chemical messengers (neurotransmitters) stored in vesicles. By which process are they released?

1. APhagocytosis
2. BEndocytosis
3. COsmosis
4. DExocytosis

A mutation changes one amino acid in an enzyme. In which location is the change most likely to stop the enzyme from working?

1. AOn the outer surface, far from the active site
2. BIn the active site
3. CIn a section that is removed after the protein is made
4. DIn the gene's stop codon

Two genes lie very close together on the same chromosome. In a test cross, most offspring look like the parents instead of the expected 1:1:1:1 ratio. Why?

1. ABoth genes show incomplete dominance
2. BThe genes are on different chromosomes and assort independently
3. CThe genes are linked and are rarely separated by crossing over
4. DA frameshift mutation happened in both genes