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

What is the cytoplasm?

1. AThe space between two neighbouring cells
2. BThe fluid found only inside the nucleus
3. CThe jelly-like contents between the membrane and nucleus
4. DThe stiff outer layer of cellulose that surrounds a plant cell

What does DNA replication produce?

1. ATwo identical DNA molecules
2. BOne mRNA molecule
3. CA new protein
4. DFour different DNA molecules

Which protein carries oxygen in red blood cells?

1. ACollagen
2. BKeratin
3. CHaemoglobin
4. DInsulin

What is the role of cholesterol in animal cell membranes?

1. AIt keeps membrane fluidity stable as temperature changes
2. BIt carries glucose molecules across the membrane into the cell
3. CIt forms a rigid wall around the cell
4. DIt stores the cell's genetic information

What does it mean that a person's blood is Rh negative?

1. ATheir red cells lack the A and B antigens
2. BTheir red cells lack the RhD antigen
3. CTheir plasma has no antibodies at all
4. DTheir red cells carry extra RhD antigen

Чому грампозитивні бактерії забарвлюються у фіолетовий колір за Грамом?

1. AВони містять хлорофіл
2. BВони взагалі не мають клітинної стінки
3. CЇхня тонка стінка вкрита зовнішньою мембраною, багатою на ліпіди
4. DЇхня товста пептидоглікова стінка утримує фіолетовий барвник

A man has Klinefelter syndrome (XXY). Which error most likely produced it?

1. ACrossing over between chromosome 21 and the X chromosome
2. BNondisjunction of the sex chromosomes during meiosis in a parent
3. CExtra mitosis in the zygote after fertilisation
4. DA frameshift mutation in one of the genes on the father's Y chromosome

Mature human red blood cells have no nucleus and no mitochondria. What follows from this?

1. AThey cannot divide and make their ATP by glycolysis only
2. BThey keep making new haemoglobin throughout their life
3. CThey make ATP by aerobic respiration using the oxygen they carry
4. DThey live longer than almost all other body cells