Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is a zygote?

1. AThe diploid cell formed when a sperm fertilises an egg
2. BA body cell that has just completed its first round of mitosis
3. CA haploid cell made by meiosis
4. DAn unfertilised egg cell

What does xylem carry in a plant?

1. AWater and minerals from the roots upward
2. BSugars from the leaves to the roots
3. CSeeds from the flowers to the soil
4. DOxygen from the leaves to the roots

Which characteristic is shared by all living things?

1. AThey make their own food by photosynthesis
2. BThey have a backbone and a brain
3. CThey are made of many cells
4. DThey respond to changes in their environment

Human adult height varies across a smooth, continuous range rather than falling into a few separate groups. What is the best explanation?

1. AIt is an X-linked recessive trait
2. BIt is controlled only by the environment
3. CIt is controlled by many genes and also affected by environment
4. DIt is controlled by one gene with two alleles and full dominance

A patient's blood type is B positive. What does this mean?

1. ATheir red cells carry no antigens at all
2. BTheir red cells carry the B antigen and the RhD antigen
3. CTheir plasma contains anti-B antibodies
4. DTheir red cells carry the A antigen and no RhD antigen

What does Mendel's law of segregation state?

1. AEach gamete receives both alleles of every gene
2. BThe two alleles of a gene separate so each gamete gets only one
3. CGenes on different chromosomes are always inherited together
4. DDominant alleles are more common in a population than recessive ones

A person's body temperature starts to fall in a cold room. Which responses help bring it back up?

1. ASlower heart rate and less muscle activity
2. BFaster breathing and more urine production
3. CSweating and widening of blood vessels in the skin
4. DShivering and narrowing of blood vessels in the skin

A nurse notices that patients who used a new mouthwash had few mouth infections. No other patients were studied. What is most needed before concluding that the mouthwash works?

1. AA comparable group that does not use the mouthwash
2. BA survey asking patients if they liked it
3. CA longer explanation in the report
4. DA larger bottle of the same mouthwash for each patient