Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

In an enzyme reaction, what is the substrate?

1. AThe product released at the end
2. BThe part of the enzyme that changes shape
3. CThe substance that the enzyme acts on
4. DThe gene that codes for the enzyme

What is the job of the capsule found around some bacteria?

1. AIt holds the bacterium's main chromosome
2. BIt protects the cell, for example from white blood cells
3. CIt is used to swim through liquids
4. DIt helps the bacterium make energy by photosynthesis

What is the R group of an amino acid?

1. AThe peptide bond between two amino acids
2. BThe carboxyl group at one end
3. CThe amino group that is shared by all amino acids
4. DThe side chain that differs between amino acids

Human adult height varies across a smooth, continuous range rather than falling into a few separate groups. What is the best explanation?

1. AIt is controlled only by the environment
2. BIt is controlled by one gene with two alleles and full dominance
3. CIt is controlled by many genes and also affected by environment
4. DIt is an X-linked recessive trait

A bone marrow transplant can treat some blood cancers. Why does it work?

1. AThe donor stem cells produce new, healthy blood cells
2. BThe donor marrow contains antibiotics that kill cancer
3. CThe donor red cells divide to make more red cells
4. DThe transplant replaces the patient's bones

In a eukaryotic cell, where does transcription take place?

1. AIn the lysosomes
2. BOn ribosomes in the cytoplasm
3. CIn the nucleus
4. DIn the Golgi apparatus

An inhibitor binds to an enzyme away from the active site and changes the enzyme's shape. Adding more substrate does not restore the rate. What type of inhibition is this?

1. ASubstrate saturation
2. BCompetitive inhibition
3. CNoncompetitive inhibition
4. DDenaturation by heat

Manakah berikut ini yang merupakan hipotesis yang dapat diuji?

1. ATanaman merasa lebih bahagia dan tenang bila diajak bicara setiap hari
2. BTanaman adalah makhluk hidup yang paling indah
3. CJika tanaman mendapat lebih banyak cahaya, tanaman akan tumbuh lebih tinggi
4. DTanaman seharusnya disiram oleh orang-orang yang peduli