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

What do bacteria use flagella for?

1. AMaking proteins from amino acids
2. BStoring food
3. CCopying their DNA
4. DMoving from place to place

Which group of biomolecules forms the basic bilayer of the cell membrane and also stores long-term energy?

1. ANucleic acids
2. BProteins
3. CLipids
4. DCarbohydrates

What is cell differentiation?

1. AThe process by which cells die on purpose
2. BThe process by which cells become specialised
3. CThe process by which a cell divides into two
4. DThe process by which DNA is copied

Many vitamins act as coenzymes. What does this mean?

1. AThey are built into the cell membrane
2. BThey are digested to release large amounts of energy
3. CThey help enzymes carry out their reactions
4. DThey replace enzymes that have been denatured

Why is a buffer system important in blood?

1. AIt carries oxygen to the tissues
2. BIt resists changes in pH
3. CIt raises the blood glucose level
4. DIt makes the blood clot faster

Che cosa hanno in comune amido, glicogeno e cellulosa?

1. ASono polisaccaridi formati da unità di glucosio
2. BSono proteine formate da amminoacidi
3. CSono acidi nucleici che conservano l'informazione ereditaria
4. DSono lipidi che accumulano energia

After a meal, blood glucose rises. Which response brings it back to normal?

1. AThe kidneys release insulin into the urine
2. BThe pancreas releases glucagon, and the liver releases glucose
3. CThe pancreas releases insulin, and cells take up glucose
4. DThe liver stops storing glycogen and releases more glucose

Un singolo batterio si divide ogni 20 minuti. Se nessuno muore, quanti batteri ci sono dopo 2 ore?

1. A128
2. B12
3. C32
4. D64