Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is phagocytosis?

1. AA cell dividing into two identical daughter cells
2. BA cell engulfing large particles such as bacteria
3. CA cell taking in small droplets of fluid
4. DA cell releasing hormones by exocytosis

What are the three parts of a nucleotide?

1. AA carboxyl group, a base and a lipid
2. BA glycerol, a phosphate and a fatty acid
3. CA phosphate, a sugar and a nitrogen base
4. DAn amino group, a sugar and a fatty acid

What is true of a recessive allele?

1. AIts trait shows whenever one copy is present
2. BIts trait shows only when two copies are present
3. CIt is found only on the X chromosome
4. DIt is always harmful to the organism

Which polymer is correctly matched with its monomer?

1. AProtein and nucleotide
2. BStarch and glucose
3. CGlycogen and fatty acid
4. DDNA and amino acid

In a food chain, producers hold 10 000 units of energy. Roughly how much is passed on to the primary consumers?

1. AAbout 10 000 units
2. BAbout 5000 units
3. CAbout 10 units
4. DAbout 1000 units

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

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

How does a phospholipid differ from a triglyceride?

1. AIt contains no glycerol, only fatty acids and phosphate
2. BIt has four fatty acids instead of three
3. COne of the fatty acids is replaced by a phosphate group
4. DIt is made of amino acids

A karyotype shows three copies of chromosome 21. Which condition does this indicate, and how many chromosomes does the person have?

1. ADown syndrome, with 47 chromosomes
2. BTurner syndrome, with 47 chromosomes
3. CKlinefelter syndrome, with 45 chromosomes
4. DDown syndrome, with 45 chromosomes