Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

In which form do animals store glucose in the liver and muscles?

1. AChitin
2. BStarch
3. CCellulose
4. DGlycogen

How many strands does an RNA molecule usually have?

1. AOne
2. BTwo
3. CThree
4. DFour

What is an organism's genotype?

1. AThe environment in which it lives
2. BThe traits that can be seen or measured
3. CThe alleles it carries for a trait
4. DThe number of cells in its body

Why is a buffer system important in blood?

1. AIt resists changes in pH
2. BIt raises the blood glucose level
3. CIt makes the blood clot faster
4. DIt carries oxygen to the tissues

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

What is the main role of inflammation after an injury?

1. ATo stop all blood flow to the area so that bleeding ends
2. BTo make antibodies inside the damaged cells
3. CTo bring more blood and white blood cells to the area
4. DTo destroy the healthy cells around the wound

People who carry one sickle cell allele are more resistant to malaria. Why is the allele common in regions where malaria is widespread?

1. APeople with two sickle alleles are fully healthy there
2. BThe allele is dominant, so it spreads by itself
3. CNatural selection favours the heterozygotes there
4. DMalaria causes the sickle cell mutation directly

Parts of a protein chain coil into alpha helices and fold into beta sheets, held by hydrogen bonds. Which level of protein structure is this?

1. APrimary structure
2. BTertiary structure
3. CQuaternary structure
4. DSecondary structure