Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is an ecosystem?

1. AThe living things in an area and their non-living surroundings
2. BThe weather in a particular region
3. CAll the members of one species in an area
4. DA single organism together with all of its organs and tissues

What is a monosaccharide?

1. ATwo sugars joined together, such as sucrose
2. BA chain of many amino acids
3. CA single sugar unit, such as glucose
4. DA fat made of glycerol and fatty acids

What is a bacteriophage?

1. AA fungus that kills bacteria
2. BA white cell that eats bacteria
3. CA virus that infects bacteria
4. DA bacterium that infects viruses

A person catches chickenpox once and does not usually become ill with it again. Why?

1. AThe virus stays in the blood and kills new viruses
2. BMemory cells give a faster, stronger response the next time
3. CThe skin becomes thicker after the first infection
4. DAntibodies from the first infection turn into new viruses

Mengapa buta warna merah-hijau lebih umum pada laki-laki daripada perempuan?

1. APerempuan tidak dapat mewarisi alel itu dari ayahnya
2. BAlelnya dominan pada laki-laki dan resesif pada perempuan
3. CAlelnya dibawa pada kromosom Y
4. DLaki-laki hanya memiliki satu kromosom X, sehingga satu alel sudah cukup

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

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

During the Industrial Revolution, soot darkened tree trunks in parts of England, and dark peppered moths became more common than pale ones. What best explains this?

1. AThe moths chose to become dark to hide
2. BBirds found and ate fewer dark moths on the dark trunks
3. CDark moths were produced by the polluted air
4. DThe soot settled on the pale moths and slowly turned them dark

A food sample turns purple with biuret reagent but stays yellow-brown with iodine solution. What does the sample contain?

1. AProtein but no starch
2. BBoth protein and starch
3. CStarch but no protein
4. DFat but no protein