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

Which definition of a species is most often used for animals?

1. AAny organisms that look alike
2. BAll of the different organisms that live together in one area
3. CA group that can interbreed and have fertile offspring
4. DAll the animals that eat the same food

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

Чого не мають прокаріотичні клітини, як-от бактерії?

1. AГенетичного матеріалу у формі ДНК
2. BРибосом
3. CКлітинної мембрани
4. DОточеного мембраною ядра

Why must human gametes be haploid?

1. ASo that the gametes can divide quickly by mitosis
2. BSo that the zygote has the normal number of 46 chromosomes
3. CSo that the gametes can make more proteins
4. DSo that the zygote has twice the normal number of chromosomes

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt makes the DNA strands stick together
2. BIt copies RNA as well as DNA
3. CIt works only in the dark, like the bacteria it comes from
4. DIt survives the high temperatures used to separate the strands

An organism is multicellular, makes its own food by photosynthesis and has cell walls of cellulose. Which kingdom does it belong to?

1. AAnimals
2. BBacteria
3. CPlants
4. DFungi

PCR starts with one double-stranded DNA molecule, and the number of copies doubles each cycle. How many copies are there after 10 cycles?

1. A512
2. B100
3. C1024
4. D20

Why do cells get far more ATP from glucose when oxygen is present than when it is absent?

1. AOxygen itself is converted into ATP in the mitochondria
2. BWithout oxygen the Krebs cycle runs faster but makes less ATP
3. CWithout oxygen, glucose cannot enter the cell or be broken down at all
4. DWithout oxygen only glycolysis runs, giving a net of 2 ATP per glucose