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

What are restriction enzymes?

1. AEnzymes that digest fats in the intestine
2. BEnzymes that cut DNA at specific base sequences
3. CEnzymes that copy RNA into DNA
4. DEnzymes that join amino acids into proteins

What is transpiration?

1. AThe movement of sugars through the phloem to the roots
2. BThe taking in of CO₂ for photosynthesis
3. CThe loss of water vapour from the leaves of a plant
4. DThe growth of roots towards water

What is the resolution of a microscope?

1. AHow bright the image appears
2. BHow large the field of view is
3. CIts ability to show two close points as separate
4. DHow many times larger it makes the image of the specimen

Researchers randomly assign patients to receive either a new wound dressing or the standard dressing and compare healing times. What type of study is this?

1. AA controlled experiment
2. BA case report
3. CA survey
4. DAn observational study

A seedling is 4 cm tall at week 1, 8 cm at week 2, 12 cm at week 3 and 16 cm at week 4. If the trend continues, how tall will it be at week 6?

1. A24 cm
2. B18 cm
3. C20 cm
4. D32 cm

Коли ДНК копіюється в клітинному циклі?

1. AПід час метафази мітозу
2. BПід час цитокінезу
3. CУ S-фазі інтерфази
4. DЛише під час мейозу II

Why are there usually far fewer top predators than herbivores in an ecosystem?

1. AHerbivores eat the young of top predators
2. BTop predators need less energy than herbivores
3. CEnergy is lost at each step, leaving little for the top level
4. DTop predators reproduce faster than herbivores, so they die sooner

An Rh-negative mother gives birth to an Rh-positive baby. Why could a later Rh-positive pregnancy be at risk?

1. AShe may have made anti-D antibodies that cross the placenta
2. BThe first baby's antibodies remain in her blood and attack her
3. CThe second baby will be unable to make any red cells
4. DHer red cells may become Rh positive after the birth