Scheda di esercizi di Biologia per i test di ammissione a infermieristica con soluzioni

In genetics, what is a carrier?

1. AA person with one recessive allele for a disorder but no symptoms
2. BA person with two recessive alleles who has the disorder
3. CA person who has a dominant disorder
4. DA person who has lost both alleles for the gene, so shows no trait

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 variable that the scientist changes on purpose
4. DA measurement taken with a calibrated instrument in a laboratory

What is endocytosis?

1. AReleasing material from the cell by fusing vesicles with the membrane
2. BMoving water across the membrane by osmosis
3. CTaking material into the cell by folding the membrane around it
4. DSplitting the cytoplasm after the nucleus divides

Why do red blood cells have a flattened, biconcave disc shape?

1. AIt makes them stick to vessel walls
2. BIt helps them divide faster
3. CIt gives a large surface area for gas exchange
4. DIt lets them hold a larger nucleus and more DNA

Which list puts these human energy sources in order from fastest to use to longest-lasting store?

1. AGlycogen, then ATP, then fat
2. BATP, then glycogen, then fat
3. CFat, then glycogen, then ATP
4. DATP, then fat, then glycogen

A woman with blood type O has a child with a man of type AB. Which blood types can their children have?

1. AO only
2. BA or B
3. CA, B, AB or O
4. DO or AB

After wolves are removed from a park, the deer population rises sharply and young trees are overgrazed. What does this show?

1. ARemoving a predator has no effect on plants
2. BOrganisms in a food web depend on each other
3. CDeer are producers in the food web
4. DWolves compete with trees for sunlight

One sample of an enzyme is boiled and then cooled to 37 °C. Another is kept at 4 °C and then warmed to 37 °C. Which sample will work at 37 °C?

1. ABoth samples will work equally well
2. BOnly the sample that was boiled
3. COnly the sample that was kept at 4 °C
4. DNeither sample will work