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

What is a stem cell?

1. AA fully specialised cell that can no longer divide or change its type
2. BA plant cell found only in the stem
3. CA cell that carries oxygen in the blood
4. DAn unspecialised cell that can divide and become other cell types

Qual è il compito principale dell'apparato di Golgi?

1. AProdurre ATP con la respirazione cellulare
2. BControllare quali geni sono attivati
3. CModificare e impacchettare le proteine
4. DCopiare il DNA prima che la cellula si divida

How many millilitres are in one litre?

1. A1000
2. B10
3. C100
4. D10 000

Why is water good at dissolving salts and sugars?

1. AIt contains carbon atoms
2. BIts molecules are nonpolar
3. CIt has a very low boiling point
4. DIts molecules are polar

Where does the Krebs (citric acid) cycle take place in a eukaryotic cell?

1. AIn the cytoplasm
2. BIn the nucleus
3. CIn the mitochondrial matrix
4. DOn the rough endoplasmic reticulum

Why do plants wilt when the soil around their roots becomes very salty?

1. AThe roots take in too much water
2. BSalt makes the root cells swell and burst
3. CSalt blocks sunlight from reaching the leaves
4. DWater leaves the root cells by osmosis

The coding part of an mRNA is 900 bases long, including the start codon and the stop codon. How many amino acids are in the protein?

1. A298
2. B300
3. C299
4. D900

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

1. A3/64
2. B1/64
3. C1/16
4. D1/8