Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is homeostasis?

1. AKeeping a stable internal environment
2. BMaking identical copies of a cell
3. CChanging a species over many generations
4. DBreaking down food for energy

What are the three domains of life?

1. ABacteria, viruses and protists
2. BBacteria, Archaea and Eukarya
3. CPlants, animals and fungi
4. DProkaryotes, plants and animals

What is a pedigree in genetics?

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

When most people in a community are vaccinated, people who cannot be vaccinated are also protected. Why?

1. AThe vaccine spreads from person to person
2. BVaccinated people make antibodies for others
3. CThe pathogen has too few hosts to spread easily
4. DThe pathogen mutates into a harmless form

Berapa kromosom yang dikandung sel telur manusia normal?

1. A23
2. B92
3. C46
4. D22

What is an inversion mutation?

1. AA chromosome segment breaks off and is reattached the wrong way round
2. BA whole extra chromosome is added to the cell
3. CA segment of a chromosome is lost completely
4. DA segment of a chromosome moves to a different, non-matching chromosome

The coding part of an mRNA is 900 bases long, including the start codon and the stop codon. How many amino acids are in the protein?

1. A300
2. B900
3. C299
4. D298

The rate of an enzyme reaction rises as substrate is added but then levels off, even when more substrate is added. Why?

1. AThe substrate has become an inhibitor
2. BThe products have turned back into substrate
3. CThe enzyme has been denatured
4. DAll the active sites are occupied