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

What is an allele?

1. AA protein made from a gene
2. BA different version of the same gene
3. CA pair of matching chromosomes from each parent
4. DA section of DNA between genes

Which substances are used up in aerobic cellular respiration?

1. ACarbon dioxide and water
2. BGlucose and carbon dioxide
3. CGlucose and oxygen
4. DOxygen and water

What are cilia?

1. ASmall round sacs that hold digestive enzymes
2. BOpenings in the nuclear envelope
3. CFolds of the inner mitochondrial membrane that make ATP
4. DShort hair-like projections that beat in waves

A student switches a light microscope from low power to high power. What happens to the field of view?

1. AIt gets larger but less detailed
2. BIt stays the same size but gets brighter
3. CIt gets smaller and usually darker
4. DIt gets larger and brighter

Which is an example of negative feedback?

1. AContractions growing stronger during labour
2. BBlood clotting speeding up once it starts
3. CA wound becoming more inflamed over time
4. DSweating when body temperature rises

Which list puts these human energy sources in order from fastest to use to longest-lasting store?

1. AATP, then fat, then glycogen
2. BGlycogen, then ATP, then fat
3. CATP, then glycogen, then fat
4. DFat, then glycogen, then ATP

PCR starts with one double-stranded DNA molecule, and the number of copies doubles each cycle. How many copies are there after 10 cycles?

1. A1024
2. B512
3. C100
4. D20

Redi placed meat in open jars and in jars covered with gauze. Maggots appeared only on meat that flies could reach. What did this show?

1. AMaggots come from eggs laid by flies, not from the meat itself
2. BFlies form from rotting meat, and then they lay eggs on fresh meat
3. CMeat turns into maggots when exposed to air
4. DGauze produces chemicals that stop meat from rotting