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

What does xylem carry in a plant?

1. ASugars from the leaves to the roots
2. BOxygen from the leaves to the roots
3. CWater and minerals from the roots upward
4. DSeeds from the flowers to the soil

Какая наименьшая единица считается живой?

1. AМолекула
2. BАтом
3. CКлетка
4. DТкань

What is a zygote?

1. AA body cell that has just completed its first round of mitosis
2. BThe diploid cell formed when a sperm fertilises an egg
3. CAn unfertilised egg cell
4. DA haploid cell made by meiosis

Which list puts these human energy sources in order from fastest to use to longest-lasting store?

1. AATP, then fat, then glycogen
2. BFat, then glycogen, then ATP
3. CATP, then glycogen, then fat
4. DGlycogen, then ATP, then fat

How do embryonic stem cells differ from most adult stem cells?

1. AThey are haploid, while adult stem cells are diploid
2. BThey can become almost any cell type, while adult stem cells are more limited
3. CThey can no longer divide, while adult stem cells divide quickly
4. DThey are found only in plants, while adult stem cells are found in animals

Чем научная теория отличается от гипотезы?

1. AТеорию никогда нельзя изменить новыми данными
2. BТеория — это догадка, которая ещё не проверялась
3. CТеория — это результат одного эксперимента
4. DЭто широкое объяснение, подкреплённое множеством проверенных данных

A pre-mRNA is 3000 bases long, and 1200 bases of introns are removed. If all remaining bases code for amino acids, what is the largest number of amino acids in the protein?

1. A1000
2. B400
3. C600
4. D1800

A diploid cell contains 10 units of DNA in G1. How many units are in each cell at the end of meiosis II?

1. A5 units
2. B2,5 units
3. C10 units
4. D20 units