Робочий аркуш «Біологія для вступних іспитів на медсестринство» з відповідями

Проти яких організмів ефективні антибіотики?

1. AПроти алергенів пилку
2. BПроти вірусів
3. CОднаково проти всіх типів мікроорганізмів
4. DПроти бактерій

Which sex chromosomes does a typical human male have?

1. AXY
2. BX only
3. CYY
4. DXX

Що з наведеного є грибом?

1. AВірус грипу
2. BАмеба
3. CEscherichia coli
4. DДріжджі

What happens to an enzyme after it has catalysed a reaction?

1. AIt is broken down into amino acids
2. BIt becomes part of the product and leaves with it
3. CIt is released unchanged and can be used again
4. DIt changes into the substrate

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. BA–T pairs are found only in RNA
3. CG–C pairs form three hydrogen bonds, and A–T pairs form two
4. DG–C pairs are joined by strong covalent bonds instead of hydrogen bonds

Which process removes carbon dioxide from the atmosphere?

1. ABurning fossil fuels
2. BPhotosynthesis
3. CDecomposition
4. DCellular respiration

A man has Klinefelter syndrome (XXY). Which error most likely produced it?

1. ACrossing over between chromosome 21 and the X chromosome
2. BNondisjunction of the sex chromosomes during meiosis in a parent
3. CExtra mitosis in the zygote after fertilisation
4. DA frameshift mutation in one of the genes on the father's Y chromosome

Why is ATP described as an energy carrier rather than a long-term energy store?

1. AATP can be made only in plants
2. BATP is stored in large amounts in fat tissue
3. CCells hold only a little and constantly recycle it from ADP
4. DATP contains no energy in its bonds, so it cannot be stored