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

How many micrometres (µm) are in one millimetre?

1. A10
2. B100
3. C1 000 000
4. D1000

What is a eukaryote?

1. AAn organism whose cells have a nucleus
2. BA virus that infects animal cells
3. CAn organism that lives only in extreme heat
4. DAn organism made of a single cell without a nucleus

What are the three parts of a nucleotide?

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

What is meant by independent assortment in meiosis?

1. AHomologous pairs line up randomly, so gametes get different mixes of chromosomes
2. BDNA is copied separately in each chromosome
3. CSister chromatids stay joined until the end of meiosis, so all gametes are identical
4. DAll chromosomes from the mother go into the same gamete

In disease spread, what is a vector?

1. AA blood test used to detect antibodies
2. BThe first person to catch a disease
3. CA medicine that destroys a pathogen in the body
4. DAn organism that carries a pathogen between hosts

Як фермент прискорює хімічну реакцію?

1. AДодає енергії до продуктів
2. BВитрачається як реагент
3. CЗнижує енергію активації
4. DПідвищує температуру клітини

A linear DNA molecule is fully cut by a restriction enzyme, giving fragments of 500, 300 and 200 base pairs. How long was the original molecule?

1. A500 base pairs
2. B1000 base pairs
3. C300 base pairs
4. D1500 base pairs

Starch and cellulose are both made of glucose. Why can humans digest starch but not cellulose?

1. AHumans lack an enzyme that breaks the bonds in cellulose
2. BCellulose dissolves in water but starch does not
3. CStarch is a protein, and cellulose is a lipid
4. DCellulose contains no glucose units at all, only fructose