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

In which stage of the cell cycle does a cell spend most of its time?

1. AProphase
2. BInterphase
3. CAnaphase
4. DMetaphase

Quale affermazione descrive i batteri?

1. ANon sono cellule ma particelle di proteine e DNA
2. BSono eucarioti unicellulari con un nucleo
3. CSono procarioti unicellulari
4. DSono organismi pluricellulari come le piante

Quale struttura si trova nelle cellule vegetali ma non in quelle animali?

1. AIl ribosoma
2. BLa parete cellulare
3. CLa membrana cellulare
4. DIl mitocondrio

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

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

Why is DNA replication called semiconservative?

1. AEach new strand is a random mix of old and new pieces
2. BEach new DNA molecule has one old strand and one new strand
3. CThe old DNA molecule is kept whole, and a completely new one is made
4. DOnly half of the DNA is copied each time

A tablet contains 2,5 g of a substance. How many milligrams is this?

1. A2500 mg
2. B0,0025 mg
3. C25 mg
4. D250 mg

When caring for a patient with C. difficile infection, why is hand washing with soap and water preferred over alcohol hand rub?

1. ASoap kills the spores, but alcohol only kills viruses and not bacteria
2. BAlcohol makes the spores more infectious
3. CAlcohol does not kill its spores, but washing removes them
4. DSoap and water are faster than alcohol rub

Two plants are crossed, and about half of the offspring show the dominant trait and half show the recessive trait. What are the most likely genotypes of the parents?

1. AHomozygous dominant × homozygous recessive
2. BHeterozygous × heterozygous
3. CHeterozygous × homozygous recessive
4. DHomozygous dominant × heterozygous