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

Which organelle breaks down fatty acids and hydrogen peroxide?

1. ACentriole
2. BRibosome
3. CPeroxisome
4. DChloroplast

What are the three domains of life?

1. ABacteria, viruses and protists
2. BBacteria, Archaea and Eukarya
3. CProkaryotes, plants and animals
4. DPlants, animals and fungi

What are the three parts of a nucleotide?

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

Эритроцит помещают в чистую воду. Что, скорее всего, произойдёт?

1. AЕго размер не изменится
2. BОн набухнет и может лопнуть
3. CОн разделится на две клетки
4. DОн сожмётся и сморщится

What is a prion?

1. AA misfolded protein that causes normal proteins to misfold
2. BA bacterium without a cell wall that lives inside nerve cells
3. CA fungal spore that infects the brain
4. DA very small virus with a DNA genome

Why are stains such as iodine or methylene blue added to cells on a microscope slide?

1. ATo make the cells larger
2. BTo make structures easier to see
3. CTo keep the cells alive for longer
4. DTo make the cells divide

Bacteria grown in heavy nitrogen (¹⁵N) are moved to normal nitrogen (¹⁴N) and allowed to divide once. All their DNA now has a density halfway between heavy and light. Which model of replication does this support?

1. AReplication by RNA copying
2. BReplication without a template
3. CConservative replication
4. DSemiconservative replication

An mRNA reads AUG-UUU-GGC-UAA. How many amino acids are in the protein made from it?

1. A4
2. B3
3. C2
4. D12