Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

What is the main job of the nucleolus?

1. AIt makes ribosomal RNA and builds ribosome parts
2. BIt digests worn-out parts of the cell
3. CIt releases energy from glucose for the nucleus
4. DIt stores water and salts for the nucleus

Hangi baz RNA'da bulunur ama DNA'da bulunmaz?

1. ATimin
2. BGuanin
3. CAdenin
4. DUrasil

What is an inference?

1. AA measurement taken with a calibrated instrument in a laboratory
2. BA variable that the scientist changes on purpose
3. CA list of the materials used in an experiment
4. DA conclusion reached from observations and prior knowledge

Which polymer is correctly matched with its monomer?

1. AProtein and nucleotide
2. BDNA and amino acid
3. CStarch and glucose
4. DGlycogen and fatty acid

When most people in a community are vaccinated, people who cannot be vaccinated are also protected. Why?

1. AVaccinated people make antibodies for others
2. BThe pathogen mutates into a harmless form
3. CThe vaccine spreads from person to person
4. DThe pathogen has too few hosts to spread easily

By which process does oxygen enter a cell and carbon dioxide leave it?

1. AFacilitated diffusion through glucose carriers
2. BEndocytosis in small vesicles
3. CSimple diffusion through the lipid bilayer
4. DActive transport by membrane pumps

In a family, a trait appears mostly in males. Affected men have daughters who are unaffected, but some of these daughters have affected sons. Which pattern fits best?

1. AY-linked
2. BX-linked recessive
3. CAutosomal recessive with equal sexes
4. DAutosomal dominant

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 45 chromosomes
2. BDown syndrome, with 47 chromosomes
3. CTurner syndrome, with 47 chromosomes
4. DKlinefelter syndrome, with 45 chromosomes