Biology for nursing entrance exams worksheet with answers

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 structure is found in plant cells but not in animal cells?

1. ACell membrane
2. BCell wall
3. CRibosome
4. DMitochondrion

What is a model in science?

1. AThe control group of a study
2. BAn exact copy that has no limitations
3. CA single measurement from an experiment
4. DA simplified representation of a real system

In a food chain, producers hold 10 000 units of energy. Roughly how much is passed on to the primary consumers?

1. AAbout 10 000 units
2. BAbout 1000 units
3. CAbout 10 units
4. DAbout 5000 units

What is a random sample?

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

Drugs against fungal infections often cause more side effects than drugs against bacteria. Why?

1. AFungal cells are eukaryotic, like human cells
2. BFungi have no cell membrane for drugs to act on
3. CFungi are much smaller than bacteria
4. DFungi reproduce only by binary fission

A new infectious agent passes through filters that trap bacteria, does not grow on nutrient agar and multiplies only inside living cells. What is it most likely to be?

1. AA bacterium
2. BA fungus
3. CA protozoan
4. DA virus

Two parents are both AaBbCc, and the three genes assort independently. What is the probability that a child is aabbcc?

1. A1/64
2. B3/64
3. C1/8
4. D1/16