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

Scheda di esercizi di Biologia per i test di ammissione a infermieristica gratuita e stampabile: 8 esercizi dal livello facile a quello d’esame, con le soluzioni. Stampala o salvala come PDF.

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Nome: ____________________   Data: ____________

1.Facile

How many millilitres are in one litre?

  1. A10 000
  2. B10
  3. C100
  4. D1000
2.Facile

What is the main material in the cell wall of bacteria?

  1. ACellulose
  2. BPeptidoglycan
  3. CChitin
  4. DKeratin
3.Facile

What is a pedigree in genetics?

  1. AA chart that shows how a trait is inherited in a family
  2. BA picture of a person's chromosomes arranged in pairs by size
  3. CA table of codons and amino acids
  4. DA list of all the genes in an organism
4.Media

In gel electrophoresis, why does DNA move towards the positive electrode?

  1. ADNA has no charge and moves at random
  2. BDNA has a negative charge from its phosphate groups
  3. CDNA is pulled by gravity through the gel
  4. DDNA has a positive charge from the nitrogen bases it contains
5.Media

Si incrociano due genitori eterozigoti (Aa × Aa). Qual è il rapporto genotipico atteso?

  1. A3 AA : 1 aa
  2. B2 AA : 1 Aa : 1 aa
  3. C1 AA : 2 Aa : 1 aa
  4. D1 AA : 1 aa
6.Media

In che cosa la diffusione facilitata differisce dalla diffusione semplice?

  1. ASposta solo gas come l'ossigeno
  2. BUsa proteine canale o trasportatrici ma non ATP
  3. CSposta le molecole contro il loro gradiente usando una pompa e ATP
  4. DUsa ATP per spostare le molecole in salita
7.Difficile

In uncontrolled diabetes, glucose appears in the urine and the person passes large volumes of urine. What is the best explanation?

  1. AGlucose makes the kidneys absorb more water
  2. BGlucose in the kidney filtrate holds water by osmosis
  3. CInsulin makes the kidneys filter more blood
  4. DGlucose is broken down into water in the bladder
8.Difficile

Why is one new DNA strand made in short pieces (Okazaki fragments) during replication?

  1. ADNA polymerase works only 5' to 3', and the strands are antiparallel
  2. BOnly half of the DNA needs to be copied
  3. CThe lagging strand is made of RNA instead of DNA, so it must be built in pieces
  4. DHelicase cuts that strand into pieces before copying

Soluzioni

  1. 1. D · 1000
  2. 2. B · Peptidoglycan
  3. 3. A · A chart that shows how a trait is inherited in a family
  4. 4. B · DNA has a negative charge from its phosphate groups
  5. 5. C · 1 AA : 2 Aa : 1 aa
  6. 6. B · Usa proteine canale o trasportatrici ma non ATP
  7. 7. B · Glucose in the kidney filtrate holds water by osmosis
  8. 8. A · DNA polymerase works only 5' to 3', and the strands are antiparallel

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