Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is homeostasis?

1. AKeeping a stable internal environment
2. BBreaking down food for energy
3. CChanging a species over many generations
4. DMaking identical copies of a cell

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

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

What is the job of messenger RNA (mRNA)?

1. AIt forms the main structure of the ribosome
2. BIt carries the genetic code from DNA to the ribosomes
3. CIt stores genetic information in the nucleus permanently
4. DIt carries amino acids to the ribosomes

Which process removes carbon dioxide from the atmosphere?

1. ADecomposition
2. BPhotosynthesis
3. CBurning fossil fuels
4. DCellular respiration

How are photosynthesis and aerobic respiration related?

1. ABoth happen only in animal cells, never in plant cells
2. BBoth take place only in chloroplasts
3. CThe products of one are the reactants of the other
4. DBoth release oxygen into the air

The sodium-potassium pump moves ions across the cell membrane. What does one cycle of the pump do?

1. AMoves 2 Na⁺ out and 3 K⁺ in, using ATP
2. BMoves 3 K⁺ out and 2 Na⁺ in, using ATP
3. CMoves 3 Na⁺ out and 2 K⁺ in, using ATP
4. DMoves Na⁺ in and K⁺ out, without using ATP

A nurse notices that patients who used a new mouthwash had few mouth infections. No other patients were studied. What is most needed before concluding that the mouthwash works?

1. AA survey asking patients if they liked it
2. BA longer explanation in the report
3. CA larger bottle of the same mouthwash for each patient
4. DA comparable group that does not use the mouthwash

Sweating cools the body. Which property of water best explains this?

1. AIt takes a lot of heat energy to evaporate
2. BIt has a very low specific heat
3. CIt is less dense as ice than as a liquid
4. DIt is a nonpolar solvent