Biology for nursing entrance exams worksheet with answers

In which organelle does photosynthesis take place?

1. ANucleus
2. BMitochondrion
3. CGolgi apparatus
4. DChloroplast

Which organelle breaks down fatty acids and hydrogen peroxide?

1. ARibosome
2. BPeroxisome
3. CChloroplast
4. DCentriole

What is a sister chromatid?

1. AA small ring of DNA found in bacteria
2. BA chromosome that is inherited from the mother only, never the father
3. COne of two identical copies of a chromosome joined at the centromere
4. DOne of the two sex chromosomes

Researchers randomly assign patients to receive either a new wound dressing or the standard dressing and compare healing times. What type of study is this?

1. AA survey
2. BA case report
3. CAn observational study
4. DA controlled experiment

When most people in a community are vaccinated, people who cannot be vaccinated are also protected. Why?

1. AThe pathogen has too few hosts to spread easily
2. BVaccinated people make antibodies for others
3. CThe vaccine spreads from person to person
4. DThe pathogen mutates into a harmless form

An experiment's results match the predictions of the hypothesis. What is the best conclusion?

1. AThe hypothesis is now a law of nature
2. BThe hypothesis is supported, but not proven
3. CThe hypothesis is proven true for all cases
4. DNo further experiments are ever needed

An mRNA reads AUG-UUU-GGC-UAA. How many amino acids are in the protein made from it?

1. A4
2. B2
3. C12
4. D3

Muscle cells use a lot of energy. Which organelle would you expect them to have in large numbers?

1. AVacuoles
2. BChloroplasts
3. CLysosomes
4. DMitochondria