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

What does ATP stand for?

1. AAmino triphosphate
2. BAdenosine triphosphate
3. CAdenosine diphosphate
4. DAdenine tetraphosphate

Which protein gives strength to skin, tendons and bone?

1. ACollagen
2. BMyosin
3. CHaemoglobin
4. DAmylase

What is apoptosis?

1. AUncontrolled cell division
2. BDivision of the cytoplasm
3. CFusion of two gametes
4. DProgrammed cell death

Что определяет форму и функцию белка?

1. AЧисло фосфатных групп, которые он несёт
2. BПорядок жирных кислот в мембране
3. CКоличество глюкозы в клетке
4. DПоследовательность его аминокислот

Why must human gametes be haploid?

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

Dolly the sheep was cloned by putting the nucleus of an adult body cell into an egg cell whose nucleus had been removed. Whose nuclear DNA did Dolly have?

1. AThe sheep that carried the pregnancy
2. BAn equal mix of all three sheep
3. CThe sheep that gave the body cell nucleus
4. DThe sheep that gave the egg cell

Why does cooking oil not mix with water?

1. AWater molecules are nonpolar and avoid each other
2. BOil is denser than water and sinks
3. COil molecules are nonpolar and cannot form hydrogen bonds with water
4. DOil molecules are polar and repel the charged ends of water molecules

Which parent's gamete decides the biological sex of a human baby, and why?

1. AThe mother's, because an egg carries either an X or a Y
2. BThe mother's, because she gives two X chromosomes
3. CThe father's, because a sperm carries either an X or a Y
4. DBoth equally, because each gives one Y chromosome