Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais

What is a heterotroph?

1. AAn organism that makes its own food by photosynthesis
2. BAn organism with no cells
3. CAn organism that lives only in water
4. DAn organism that gets its food from other organisms

What is the single most important way to prevent the spread of infection in hospitals?

1. AOpening the windows
2. BGiving every patient antibiotics
3. CHand hygiene
4. DWearing a hair net

What does the enzyme DNA ligase do?

1. AIt makes RNA from a DNA template
2. BIt joins pieces of DNA together
3. CIt unwinds the DNA double helix
4. DIt cuts DNA at specific sites

A cell has a nucleus and mitochondria but no cell wall and no chloroplasts. What kind of cell is it most likely to be?

1. AA bacterial cell
2. BA fungal cell
3. CA plant cell
4. DAn animal cell

Which kind of mutation can be passed on to a person's children?

1. AA mutation in a skin cell caused by sunlight
2. BA mutation in a cell that forms eggs or sperm
3. CA mutation in a white blood cell during infection
4. DA mutation in a liver cell caused by alcohol

Many vitamins act as coenzymes. What does this mean?

1. AThey replace enzymes that have been denatured
2. BThey help enzymes carry out their reactions
3. CThey are built into the cell membrane
4. DThey are digested to release large amounts of energy

Two populations of one species live on separate islands for many thousands of years. When brought together, they can no longer interbreed. What has happened?

1. AHomeostasis in both populations
2. BSpeciation after geographic isolation
3. CHybrid vigour from crossbreeding
4. DArtificial selection by humans

Hemofilija yra X chromosomos recesyvinė liga. Nešiotoja motina (XᴴXʰ) ir sveikas tėvas (XᴴY) susilaukia sūnaus. Kokia tikimybė, kad jis serga hemofilija?

1. A1/2
2. B0
3. C1/4
4. D1