Biology for nursing entrance exams worksheet with answers

Which elements make up carbohydrates?

1. ACarbon, hydrogen and oxygen
2. BCarbon, nitrogen and sulfur
3. CHydrogen, oxygen and phosphorus
4. DCarbon, hydrogen and nitrogen

What is true of a dominant allele?

1. AIt is always inherited from the mother
2. BIt never appears in the phenotype
3. CIt shows its effect when only one copy is present
4. DIt shows its effect only when two copies are present

What is an organism's genotype?

1. AThe alleles it carries for a trait
2. BThe number of cells in its body
3. CThe traits that can be seen or measured
4. DThe environment in which it lives

How does cytokinesis differ between animal cells and plant cells?

1. AOnly animal cells carry out cytokinesis
2. BAnimal cells pinch in with a furrow; plant cells build a cell plate
3. COnly plant cells carry out cytokinesis
4. DAnimal cells build a cell plate; plant cells pinch in with a furrow

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

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

Which statement about Archaea is correct?

1. AThey are eukaryotes that have a nucleus and membrane-bound organelles
2. BThey are multicellular plants
3. CThey are prokaryotes, and many live in extreme environments
4. DThey are a type of virus

Why does cooking oil not mix with water?

1. AOil molecules are nonpolar and cannot form hydrogen bonds with water
2. BOil is denser than water and sinks
3. CWater molecules are nonpolar and avoid each other
4. DOil molecules are polar and repel the charged ends of water molecules

Sweating cools the body. Which property of water best explains this?

1. AIt has a very low specific heat
2. BIt is a nonpolar solvent
3. CIt is less dense as ice than as a liquid
4. DIt takes a lot of heat energy to evaporate