Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is the single most important way to prevent the spread of infection in hospitals?

1. AOpening the windows
2. BHand hygiene
3. CGiving every patient antibiotics
4. DWearing a hair net

What is a stem cell?

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

What is a decomposer?

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

A cut in the skin heals as new skin cells fill the wound. Which process produces these cells?

1. AMeiosis
2. BBinary fission
3. CFertilisation
4. DMitosis

What causes cohesion between water molecules?

1. AHydrogen bonds between neighbouring molecules
2. BCovalent bonds between neighbouring molecules
3. CMagnetic forces between hydrogen atoms
4. DIonic bonds between oxygen atoms

What is the role of oxygen in aerobic respiration?

1. AIt is built into glucose molecules
2. BIt accepts electrons at the end of the transport chain
3. CIt breaks pyruvate into lactic acid
4. DIt is split to release the energy needed for glycolysis

In a trial, 20% of patients improve on a new drug and 18% improve on a placebo. What is the best conclusion?

1. AThe drug is ten times better than the placebo
2. BThe drug works well, because 20% of patients improved
3. CThe placebo was harmful to the patients
4. DThe drug adds little benefit beyond the placebo

A farmer's crops grow poorly in soil lacking nitrates. Why do plants need nitrogen?

1. ATo make amino acids, proteins and nucleic acids
2. BTo build cellulose cell walls
3. CTo make glucose during photosynthesis
4. DTo absorb more carbon dioxide through the stomata