Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is a decomposer?

1. AAn organism that makes food from sunlight
2. BAn animal that eats only plants
3. CAn organism that breaks down dead material
4. DAn animal that hunts other animals

How does a vaccine protect a person?

1. AIt trains the immune system with a harmless form of a pathogen
2. BIt replaces the person's white blood cells with stronger ones
3. CIt blocks the pathogen from entering the nose
4. DIt kills all bacteria in the body straight away

Which element is found in all organic molecules?

1. APhosphorus
2. BNitrogen
3. CCarbon
4. DSulfur

Nearly all cells in a person's body contain the same DNA. Why do nerve cells and muscle cells look and work so differently?

1. AEach cell type has a different set of chromosomes
2. BMuscle cells have extra DNA from mitochondria
3. CNerve cells have lost the genes for muscle proteins
4. DDifferent genes are switched on in each type of cell

Apa itu mutasi?

1. APemasangan kromosom homolog
2. BPenyalinan DNA yang normal sebelum pembelahan
3. CPerubahan urutan basa DNA
4. DPerubahan jumlah sel dalam suatu jaringan

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

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

Di mana kromosom utama bakteri ditemukan, dan DNA tambahan apa yang mungkin dibawanya?

1. ADi ribosom, dengan kromosom tambahan
2. BDi nukleus, dengan DNA mitokondria
3. CDi dinding sel, dengan gen RNA
4. DDi nukleoid, dengan plasmid kecil

Two populations of one species live on separate islands for many thousands of years. When brought together, they can no longer interbreed. What has happened?

1. AHybrid vigour from crossbreeding
2. BSpeciation after geographic isolation
3. CHomeostasis in both populations
4. DArtificial selection by humans