Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is the main role of carbohydrates in the human diet?

1. ATo provide a quick source of energy
2. BTo carry the body's genetic information
3. CTo form antibodies
4. DTo build muscle tissue

What is a neuron?

1. AA bone cell that stores calcium
2. BA muscle cell that contracts
3. CA nerve cell that carries electrical signals
4. DA blood cell that carries oxygen around the body

Which carbohydrate forms plant cell walls and acts as dietary fibre?

1. ACellulose
2. BGlucose
3. CLactose
4. DGlycogen

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

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

Why can small nonpolar molecules cross the cell membrane easily while ions cannot?

1. AIons are larger than most membrane proteins
2. BThe membrane is made mostly of long carbohydrate chains
3. CThe membrane carries a strong positive charge
4. DThe bilayer's core is made of hydrophobic tails

What is a chromosomal translocation?

1. AA piece of a chromosome is flipped around in place
2. BA piece of one chromosome attaches to a non-matching chromosome
3. COne DNA base is replaced by another base
4. DA piece of a chromosome is copied twice and stays in the same place

A plant cell is placed in a strong salt solution. Its membrane and cytoplasm pull away from the cell wall. What is this called?

1. ACrenation
2. BLysis
3. CPlasmolysis
4. DTurgor

Para sukarelawan meminum 0, 100, atau 200 mg kafein, dan denyut jantung mereka diukur setelah 30 menit. Apa variabel terikatnya?

1. ADenyut jantung setelah 30 menit
2. BWaktu tunggu 30 menit
3. CPara sukarelawan itu sendiri
4. DDosis kafein