Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is the cytoplasm?

1. AThe jelly-like contents between the membrane and nucleus
2. BThe space between two neighbouring cells
3. CThe fluid found only inside the nucleus
4. DThe stiff outer layer of cellulose that surrounds a plant cell

What is the active site of an enzyme?

1. AThe product formed by the reaction
2. BThe gene that codes for the enzyme
3. CThe region where the substrate binds
4. DThe part of the cell where the enzyme is made

Di mana sebagian besar DNA sel eukariot ditemukan?

1. ADi lisosom
2. BDi dinding sel
3. CDi dalam nukleus
4. DDi membran sel

HIV is a retrovirus. What does its enzyme reverse transcriptase do?

1. AIt makes DNA from the virus's RNA
2. BIt makes proteins from the virus's DNA
3. CIt breaks down the host's ribosomes
4. DIt makes RNA from the host's DNA

Apa perbedaan lemak jenuh dengan lemak tak jenuh?

1. ALemak jenuh memiliki banyak ikatan rangkap dan cair pada suhu ruang
2. BLemak jenuh tidak memiliki ikatan rangkap C=C dan biasanya padat
3. CLemak jenuh mudah larut dalam air
4. DLemak jenuh mengandung nitrogen dan membentuk protein

After gel electrophoresis, which DNA fragments are found furthest from the wells?

1. AThe fragments with the most guanine
2. BThe smallest fragments
3. CThe largest fragments
4. DThe fragments with the most adenine

Griffith injected mice with heat-killed harmful bacteria mixed with live harmless bacteria. The mice died, and live harmful bacteria were found in them. What did this show?

1. AHeat makes harmless bacteria become harmful when they are injected
2. BA substance from the dead bacteria changed the harmless ones
3. CBacteria can be killed by the immune system of mice
4. DThe mice were killed by the dead bacteria alone

Fleming saw a clear area with no bacteria around a Penicillium mould growing on a bacterial plate. What was the best explanation?

1. AThe bacteria had turned into mould cells
2. BThe mould released a substance that killed or stopped the bacteria
3. CThe mould used up all of the oxygen that the nearby bacteria needed
4. DThe bacteria had moved away to find more food