Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is a model in science?

1. AAn exact copy that has no limitations
2. BA simplified representation of a real system
3. CA single measurement from an experiment
4. DThe control group of a study

What is the active site of an enzyme?

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

What are the parts of a triglyceride (a fat molecule)?

1. AOne glycerol and three fatty acids
2. BOne amino acid and three fatty acids
3. CThree glucose units and one phosphate
4. DTwo glycerols and one fatty acid

In which phase of mitosis do the chromosomes condense and the nuclear envelope break down?

1. AProphase
2. BTelophase
3. CMetaphase
4. DAnaphase

Which statement about Archaea is correct?

1. AThey are multicellular plants
2. BThey are a type of virus
3. CThey are prokaryotes, and many live in extreme environments
4. DThey are eukaryotes that have a nucleus and membrane-bound organelles

Why are G–C base pairs held together more strongly than A–T pairs?

1. AG and C are both purines, so they fit more tightly
2. BG–C pairs form three hydrogen bonds, and A–T pairs form two
3. CG–C pairs are joined by strong covalent bonds instead of hydrogen bonds
4. DA–T pairs are found only in RNA

The field of view of a microscope is 0,5 mm wide. About 10 cells fit across it in a line. What is the approximate width of one cell?

1. A50 µm
2. B5 µm
3. C500 µm
4. D0,5 µm

When caring for a patient with C. difficile infection, why is hand washing with soap and water preferred over alcohol hand rub?

1. AAlcohol makes the spores more infectious
2. BSoap kills the spores, but alcohol only kills viruses and not bacteria
3. CAlcohol does not kill its spores, but washing removes them
4. DSoap and water are faster than alcohol rub