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

What is an organism's genome?

1. AThe proteins made by one cell
2. BAll of its genetic material
3. CThe traits that can be seen
4. DA single gene on one chromosome

Which molecules, made by immune cells, bind to specific antigens?

1. APhospholipids
2. BEnzymes
3. CAntibodies
4. DHormones

Глюкоза — это пример какого вида молекул?

1. AЛипида
2. BПолисахарида
3. CМоносахарида
4. DБелка

What is the role of oxygen in aerobic respiration?

1. AIt accepts electrons at the end of the transport chain
2. BIt breaks pyruvate into lactic acid
3. CIt is split to release the energy needed for glycolysis
4. DIt is built into glucose molecules

Why does ice float on liquid water?

1. AHydrogen bonds hold ice in an open, less dense structure
2. BIce molecules are lighter than liquid water molecules
3. CIce is denser than liquid water
4. DIce contains more air than liquid water

How does cytokinesis differ between animal cells and plant cells?

1. AOnly animal cells carry out cytokinesis
2. BAnimal cells pinch in with a furrow; plant cells build a cell plate
3. CAnimal cells build a cell plate; plant cells pinch in with a furrow
4. DOnly plant cells carry out cytokinesis

Paper discs with antibiotics X, Y and Z are placed on a plate covered with bacteria. The clear zones around them are 2 mm, 15 mm and 0 mm wide. What is the best conclusion?

1. AAll three are equally effective against these bacteria
2. BX is most effective, and the bacteria are resistant to Y
3. CZ is most effective, because no bacteria grew under the disc
4. DY is most effective, and the bacteria are resistant to Z

A linear DNA molecule is fully cut by a restriction enzyme, giving fragments of 500, 300 and 200 base pairs. How long was the original molecule?

1. A1000 base pairs
2. B500 base pairs
3. C1500 base pairs
4. D300 base pairs