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

What is a decomposer?

1. AAn organism that makes food from sunlight
2. BAn organism that breaks down dead material
3. CAn animal that hunts other animals
4. DAn animal that eats only plants

Which gas do plants take in from the air for photosynthesis?

1. AHydrogen
2. BCarbon dioxide
3. CNitrogen
4. DOxygen

Quale di questi è un lipide?

1. AIl glicogeno, la forma di riserva del glucosio
2. BL'emoglobina
3. CIl DNA
4. DUn trigliceride (grasso)

In a food chain, producers hold 10 000 units of energy. Roughly how much is passed on to the primary consumers?

1. AAbout 5000 units
2. BAbout 10 000 units
3. CAbout 10 units
4. DAbout 1000 units

What happens when a ribosome reaches a stop codon on the mRNA?

1. AThe ribosome goes back to the start codon
2. BA special amino acid is added to end the chain
3. CThe mRNA is copied back into DNA
4. DTranslation ends and the protein is released

Red-green colour blindness is X-linked recessive. A colour-blind woman (XᵇXᵇ) has children with a man with normal colour vision (XᴮY). What fraction of their sons is expected to be colour-blind?

1. AAll
2. BOne half
3. COne quarter
4. DNone

Si incrociano due piante di pisello entrambe AaBb. I geni si trovano su cromosomi diversi. Quale frazione della prole dovrebbe mostrare entrambi i caratteri recessivi (aabb)?

1. A1/4
2. B9/16
3. C1/16
4. D3/16

At dawn, a plant shows no overall uptake or release of oxygen or carbon dioxide. What is the best explanation?

1. AIts rate of photosynthesis equals its rate of respiration
2. BIt has stopped both photosynthesis and respiration until it is light
3. CIt only respires at dawn
4. DIts stomata are permanently closed at dawn