Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

Hücre boyutunu belirtmek için en sık hangi birim kullanılır?

1. AMetre (m)
2. BLitre (L)
3. CKilometre (km)
4. DMikrometre

Which organelle makes lipids and helps break down drugs and toxins in liver cells?

1. ASmooth endoplasmic reticulum
2. BRough endoplasmic reticulum
3. CNucleolus
4. DCentriole

What is homeostasis?

1. AChanging a species over many generations
2. BBreaking down food for energy
3. CMaking identical copies of a cell
4. DKeeping a stable internal environment

The sodium-potassium pump moves ions across the cell membrane. What does one cycle of the pump do?

1. AMoves 3 Na⁺ out and 2 K⁺ in, using ATP
2. BMoves Na⁺ in and K⁺ out, without using ATP
3. CMoves 3 K⁺ out and 2 Na⁺ in, using ATP
4. DMoves 2 Na⁺ out and 3 K⁺ in, using ATP

What is the function of the pores in the nuclear envelope?

1. AThey make ribosomal RNA for the cell
2. BThey let molecules such as mRNA pass in and out
3. CThey attach the nucleus to the cell membrane
4. DThey let chromosomes leave the nucleus to be copied

What is the main role of inflammation after an injury?

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

Two plants are crossed, and about half of the offspring show the dominant trait and half show the recessive trait. What are the most likely genotypes of the parents?

1. AHeterozygous × homozygous recessive
2. BHomozygous dominant × heterozygous
3. CHomozygous dominant × homozygous recessive
4. DHeterozygous × heterozygous

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

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