Биология для вступительных экзаменов на сестринские программы: лист заданий с ответами

Глюкоза — это пример какого вида молекул?

1. AЛипида
2. BБелка
3. CПолисахарида
4. DМоносахарида

What are the three domains of life?

1. ABacteria, viruses and protists
2. BPlants, animals and fungi
3. CBacteria, Archaea and Eukarya
4. DProkaryotes, plants and animals

Какова функция лизосомы?

1. AОна хранит генетическую информацию клетки
2. BОна синтезирует белки из аминокислот
3. CОна переваривает отходы и изношенные части
4. DОна улавливает энергию света для клетки

Why does each type of virus infect only certain kinds of cells?

1. AIt can only enter cells that have no nucleus
2. BIt must attach to specific receptor proteins on the cell surface
3. CIt can only enter cells that are dividing by meiosis at that time
4. DIt must find cells with the same DNA as its own

What does RNA polymerase do?

1. AIt builds a protein from an mRNA template
2. BIt removes introns from pre-mRNA
3. CIt builds an RNA strand from a DNA template
4. DIt copies the whole genome before cell division

Why do root hair cells have long, thin extensions?

1. ATo store starch for the winter
2. BTo anchor the plant firmly against strong winds and rain
3. CTo carry out photosynthesis underground
4. DTo increase the surface area for absorbing water

A single-celled organism has a nucleus, no cell wall and swims using cilia. In which group is it best placed?

1. AFungi
2. BPlants
3. CProtists
4. DBacteria

How does the CRISPR-Cas9 gene-editing system find the right place to cut DNA?

1. AThe Cas9 protein cuts DNA at random sites
2. BA guide RNA pairs with the matching DNA sequence
3. CIt binds only to the start codon of every gene
4. DIt reads the amino acid sequence of the protein