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

What do centrioles do in an animal cell?

1. AThey store the cell's digestive enzymes until they are needed
2. BThey capture light for photosynthesis
3. CThey help organise the spindle during cell division
4. DThey make lipids for the cell membrane

What is the job of the capsule found around some bacteria?

1. AIt protects the cell, for example from white blood cells
2. BIt helps the bacterium make energy by photosynthesis
3. CIt is used to swim through liquids
4. DIt holds the bacterium's main chromosome

What is a bacteriophage?

1. AA fungus that kills bacteria
2. BA bacterium that infects viruses
3. CA virus that infects bacteria
4. DA white cell that eats bacteria

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

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

What is the difference between an antiseptic and a disinfectant?

1. AAntiseptics are antibiotics; disinfectants are vaccines
2. BAntiseptics are used on objects and floors; disinfectants are used on skin
3. CAntiseptics kill all spores; disinfectants kill none
4. DAntiseptics are used on living tissue; disinfectants are used on objects

A patient's heart rate is measured four times: 70, 72, 74 and 80 beats per minute. What is the mean?

1. A73 beats per minute
2. B74 beats per minute
3. C72 beats per minute
4. D80 beats per minute

Кодон мРНК має послідовність AUG. Який антикодон відповідної тРНК?

1. ATAC
2. BAUG
3. CUAC
4. DGUA

Білок має довжину 150 амінокислот. Не рахуючи стоп-кодона, скільки основ мРНК його кодує?

1. A50
2. B450
3. C300
4. D150