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

What is the job of messenger RNA (mRNA)?

1. AIt forms the main structure of the ribosome
2. BIt carries the genetic code from DNA to the ribosomes
3. CIt carries amino acids to the ribosomes
4. DIt stores genetic information in the nucleus permanently

What is a eukaryote?

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

Что такое зависимая переменная в эксперименте?

1. AФактор, который измеряют, чтобы увидеть эффект
2. BЛюбой фактор, остающийся постоянным
3. CПроверяемая гипотеза
4. DФактор, который исследователь намеренно изменяет

Which body system works with the respiratory system to deliver oxygen to body cells?

1. AThe skeletal system
2. BThe digestive system
3. CThe circulatory system
4. DThe urinary system

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. BFungi
3. CBacteria
4. DPlants

What happens to a protein when it is denatured?

1. AIt becomes more active than before
2. BIt loses some of its amino acids but keeps its folded shape
3. CIt turns into a carbohydrate
4. DIt loses its 3D shape but keeps its amino acid sequence

Why do phospholipids arrange themselves into a double layer in water?

1. ATheir heads are hydrophobic and their tails are hydrophilic
2. BThey carry a strong positive charge on both ends
3. CTheir heads are hydrophilic and their tails are hydrophobic
4. DThey are fully soluble in water

A leaf with green and white areas is kept in light and then tested with iodine. Only the green areas turn blue-black. What does this show?

1. ALight is not needed for photosynthesis
2. BIodine destroys chlorophyll in the leaf
3. CChlorophyll is needed for photosynthesis
4. DWhite areas store more starch than green areas