Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What does the enzyme DNA ligase do?

1. AIt makes RNA from a DNA template
2. BIt joins pieces of DNA together
3. CIt cuts DNA at specific sites
4. DIt unwinds the DNA double helix

What is a stem cell?

1. AAn unspecialised cell that can divide and become other cell types
2. BA plant cell found only in the stem
3. CA cell that carries oxygen in the blood
4. DA fully specialised cell that can no longer divide or change its type

What is a haploid cell?

1. AA cell with one set of chromosomes
2. BA cell with no nucleus
3. CA cell with an extra chromosome
4. DA cell with two sets of chromosomes

Nerve cells release chemical messengers (neurotransmitters) stored in vesicles. By which process are they released?

1. AEndocytosis
2. BOsmosis
3. CExocytosis
4. DPhagocytosis

During which division of meiosis do homologous chromosomes separate?

1. AMeiosis II
2. BBoth meiosis I and meiosis II
3. CNeither, because they separate in mitosis
4. DMeiosis I

Which type of graph is best for comparing the number of patients with each ABO blood type?

1. AA line graph
2. BA histogram
3. CA bar graph
4. DA scatter plot

Seorang siswa memberi pupuk pada 2 tanaman tomat dan tidak pada 2 tanaman lainnya. Tanaman yang dipupuk tumbuh lebih tinggi. Apa kelemahan utama kesimpulan bahwa pupuk meningkatkan pertumbuhan?

1. ATidak ada variabel bebas
2. BTinggi tidak dapat diukur secara akurat
3. CPupuk seharusnya diberikan kepada keempat tanaman
4. DUkuran sampel terlalu kecil untuk menyingkirkan kebetulan

A mutation changes one amino acid in an enzyme. In which location is the change most likely to stop the enzyme from working?

1. AOn the outer surface, far from the active site
2. BIn the active site
3. CIn a section that is removed after the protein is made
4. DIn the gene's stop codon