Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

How does a vaccine protect a person?

1. AIt blocks the pathogen from entering the nose
2. BIt replaces the person's white blood cells with stronger ones
3. CIt kills all bacteria in the body straight away
4. DIt trains the immune system with a harmless form of a pathogen

What is the main material in the cell wall of bacteria?

1. AKeratin
2. BChitin
3. CCellulose
4. DPeptidoglycan

Canlı sayılan en küçük birim nedir?

1. AMolekül
2. BDoku
3. CAtom
4. DHücre

Why can DNA profiling (fingerprinting) identify individual people?

1. ARepeated non-coding DNA regions vary in length between people
2. BDNA in blood differs from DNA in skin
3. CEach person's genes code for different amino acids
4. DEvery person has a different number of chromosomes in their cells

Which stage of aerobic respiration produces the most ATP?

1. AThe Krebs cycle in the matrix
2. BFermentation
3. CThe electron transport chain
4. DGlycolysis in the cytoplasm

A bone marrow transplant can treat some blood cancers. Why does it work?

1. AThe donor red cells divide to make more red cells
2. BThe donor stem cells produce new, healthy blood cells
3. CThe transplant replaces the patient's bones
4. DThe donor marrow contains antibiotics that kill cancer

An mRNA reads AUG-UUU-GGC-UAA. How many amino acids are in the protein made from it?

1. A3
2. B12
3. C4
4. D2

Cystic fibrosis is caused by a faulty CFTR protein, which forms a chloride channel in the cell membrane. Which process is directly affected?

1. ADiffusion of oxygen molecules through the lipid bilayer
2. BCopying of DNA in the nucleus
3. CMovement of chloride ions through a membrane protein
4. DProduction of ATP in the mitochondria