Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

Which feature helps a sperm cell carry out its job?

1. AChloroplasts for making food
2. BA cell wall for protection
3. CA large vacuole for storing water
4. DA flagellum for swimming

Which sex chromosomes does a typical human male have?

1. AX only
2. BXX
3. CXY
4. DYY

How many millilitres are in one litre?

1. A100
2. B1000
3. C10
4. D10 000

Which statement best describes biological evolution?

1. AChange in the body of one organism during its lifetime
2. BChange in the inherited traits of a population over generations
3. CGrowth of an organism from a single zygote to a fully grown adult
4. DMovement of animals to a new habitat each year

What are introns?

1. AShort pieces of DNA made on the lagging strand
2. BCoding sections joined together to form the mature mRNA
3. CNon-coding sections removed from pre-mRNA before translation
4. DCodons that tell the ribosome to stop translation

What is an inversion mutation?

1. AA segment of a chromosome moves to a different, non-matching chromosome
2. BA chromosome segment breaks off and is reattached the wrong way round
3. CA whole extra chromosome is added to the cell
4. DA segment of a chromosome is lost completely

Liver cells take in cholesterol-carrying LDL particles only after the particles bind to specific proteins on the cell surface. Which process is this?

1. AReceptor-mediated endocytosis
2. BSimple diffusion
3. CPinocytosis of extracellular fluid
4. DExocytosis

Fertiliser washes from farmland into a lake. Algae grow rapidly, then die, and later many fish die. What is the main cause of the fish deaths?

1. ABacteria decomposing the dead algae use up the oxygen
2. BThe fish eat too many algae and become ill
3. CThe algae release carbon dioxide that poisons fish
4. DThe fertiliser is directly poisonous to fish