Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is a bacteriophage?

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

What is apoptosis?

1. AUncontrolled cell division
2. BProgrammed cell death
3. CFusion of two gametes
4. DDivision of the cytoplasm

What are restriction enzymes?

1. AEnzymes that cut DNA at specific base sequences
2. BEnzymes that copy RNA into DNA
3. CEnzymes that join amino acids into proteins
4. DEnzymes that digest fats in the intestine

Which is an example of negative feedback?

1. ASweating when body temperature rises
2. BA wound becoming more inflamed over time
3. CContractions growing stronger during labour
4. DBlood clotting speeding up once it starts

Which is the correct way to write the scientific name of the gut bacterium?

1. Acoli Escherichia
2. BEscherichia coli
3. CEscherichia Coli
4. DEscherichia Coli

What causes cohesion between water molecules?

1. ACovalent bonds between neighbouring molecules
2. BIonic bonds between oxygen atoms
3. CHydrogen bonds between neighbouring molecules
4. DMagnetic forces between hydrogen atoms

How does the CRISPR-Cas9 gene-editing system find the right place to cut DNA?

1. AA guide RNA pairs with the matching DNA sequence
2. BThe Cas9 protein cuts DNA at random sites
3. CIt binds only to the start codon of every gene
4. DIt reads the amino acid sequence of the protein

After a long course of broad-spectrum antibiotics, a patient develops severe diarrhoea caused by Clostridioides difficile. What is the most likely reason?

1. AC. difficile was made by the patient's own immune system
2. BThe antibiotics killed normal gut bacteria that kept C. difficile in check
3. CThe antibiotics changed some of the harmless gut bacteria into C. difficile
4. DThe antibiotics made the gut lining produce spores