Biology for nursing entrance exams worksheet with answers

Which unit is most often used to give the size of a cell?

1. AMetres (m)
2. BLitres (L)
3. CKilometres (km)
4. DMicrometres

What is an inference?

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

What does mitosis produce?

1. ATwo cells with half the chromosome number
2. BOne cell with twice the chromosome number
3. CTwo genetically identical daughter cells
4. DFour genetically different daughter cells

A greenhouse is warm and brightly lit, but the air has very little carbon dioxide. What is most likely limiting the rate of photosynthesis?

1. AThe temperature
2. BThe number of stomata
3. CThe carbon dioxide concentration
4. DThe light intensity in the greenhouse

What does RNA polymerase do?

1. AIt removes introns from pre-mRNA
2. BIt copies the whole genome before cell division
3. CIt builds a protein from an mRNA template
4. DIt builds an RNA strand from a DNA template

Which is the correct way to write the scientific name of the gut bacterium?

1. AEscherichia coli
2. BEscherichia Coli
3. CEscherichia Coli
4. Dcoli Escherichia

Which of these is a testable hypothesis?

1. AIf plants get more light, they will grow taller
2. BPlants should be watered by caring people
3. CPlants are the most beautiful living things
4. DPlants feel happier and calmer when people talk to them every day

People who carry one sickle cell allele are more resistant to malaria. Why is the allele common in regions where malaria is widespread?

1. APeople with two sickle alleles are fully healthy there
2. BNatural selection favours the heterozygotes there
3. CMalaria causes the sickle cell mutation directly
4. DThe allele is dominant, so it spreads by itself