Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

Pada struktur mana protein dirakit dari asam amino?

1. AVakuola
2. BSentriol
3. CLisosom
4. DRibosom

Apa satuan terkecil yang dianggap hidup?

1. AAtom
2. BJaringan
3. CSel
4. DMolekul

What is an adaptation?

1. AA disease that weakens a population
2. BAn inherited trait that helps an organism survive in its environment
3. CA change an organism makes during its lifetime that it then passes on
4. DAny mutation that damages a gene

In which part of the chloroplast do the light-dependent reactions happen?

1. AIn the stroma
2. BIn the outer membrane
3. CIn the cell wall
4. DIn the thylakoid membranes

The genetic code is described as nearly universal. What does this mean?

1. AEvery cell in the body makes the same proteins
2. BAll organisms have exactly the same genes
3. CThe same codons mean the same amino acids in nearly all organisms
4. DAll organisms have the same number of chromosomes in their cells

Sickle cell disease is caused by a single base change that replaces one amino acid in haemoglobin. What type of mutation is this?

1. AA frameshift mutation
2. BA nonsense mutation
3. CA missense mutation
4. DA silent mutation

In an onion root tip, 90 of 100 cells are in interphase and 10 are in mitosis. If the whole cell cycle takes 20 hours, about how long does mitosis last?

1. A10 hours
2. B0,5 hours
3. C2 hours
4. D18 hours

Some chemotherapy drugs stop spindle fibres from forming. Why do they often cause hair loss and damage to the gut lining?

1. AThese tissues are made only of haploid cells
2. BThese cells divide by meiosis instead of mitosis
3. CThese tissues also contain rapidly dividing cells
4. DThese cells have no mitochondria